An antenna structure and its electronic device

Abstract

This application provides an antenna structure and an electronic device thereof. The antenna structure utilizes the conductive portion of its frame as a radiator. Feed elements are spaced apart on one side of the radiator, and the antenna structure feeds electrical signals to the radiator via indirect coupling. The feed elements and the radiator are used to generate a first resonance and a second resonance. This antenna structure utilizes the two resonances to jointly form a wide resonant frequency band. Furthermore, in the resonant frequency band, the antenna structure exhibits good radiation efficiency and system efficiency, thereby enabling the electronic device to have good communication performance.

Description

[0001] This application claims priority to Chinese Patent Application No. 202311129261.9, filed with the Chinese Patent Office on August 31, 2023, entitled “An Electronic Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication, and more particularly to an antenna structure and electronic device thereof. Background Technology

[0003] As people's demand for high-speed data transmission increases, the trend in industrial design (ID) of electronic devices is towards larger screen ratios and multiple cameras. This has resulted in a significant reduction in antenna clearance and increasingly limited layout space.

[0004] In the current state, the communication frequency bands of electronic devices will continue to coexist for a long time, including the third-generation wireless systems (3G), fourth-generation wireless systems (4G), and fifth-generation wireless systems (5G), requiring an ever-increasing number of antennas.

[0005] Traditional methods of expanding antenna efficiency bandwidth, such as increasing the size of the antenna radiator, have reached a bottleneck. Therefore, improving the antenna efficiency bandwidth while keeping the radiator size constant has become a top priority. Summary of the Invention

[0006] This application provides an electronic device including an antenna. The antenna utilizes a conductive portion of the device's frame as a radiator. Feed elements are spaced apart on one side of the radiator, and the antenna feeds an electrical signal to the radiator via indirect coupling. The antenna can generate a first resonance and a second resonance. The two resonances can be combined to form a resonant frequency band, thereby expanding the bandwidth.

[0007] In a first aspect, an electronic device is provided, comprising: a floor; a first frame, the first frame being at least partially spaced from the floor, the first frame including a first position and a second position, the first frame being coupled to the floor at the first position and the second position, the first frame having a first gap between the first position and the second position, the first gap being located in a central region between the first position and the second position; an antenna, the antenna comprising: a first radiator, the first radiator including a conductive portion of the first frame between the first position and the second position; a first feed element, a first end of the first feed element being an open end, the first radiator and the first feed element being spaced apart, and the first radiator and the first feed element at least partially overlapping along a first direction, the first direction being perpendicular to the extension direction of the radiator or perpendicular to the extension direction of the feed element; a first feed circuit, the first feed element including a first feed point, the first feed circuit being coupled to the first feed point; wherein the first feed element and the first radiator are used to generate a first resonance and a second resonance, the first resonance and the second resonance being used to jointly support an operating frequency band of the electronic device.

[0008] According to an embodiment of this application, the first radiator can be formed into a radiator structure conforming to a slot antenna. When an electrical signal is fed into the first feed circuit, the antenna can generate the aforementioned first resonance and second resonance to extend the antenna's operating bandwidth. Both the first resonance and the second resonance can be considered as being generated by the slot CM mode. Since the slot CM mode has high radiation efficiency and system efficiency, the antenna has good radiation efficiency and system efficiency within the operating frequency band formed by the first resonance and the second resonance.

[0009] In conjunction with the first aspect, in some implementations of the first aspect, at the resonant point of the first resonance, the currents on the first radiator are in the same direction; at the resonant point of the second resonance, the currents on the first radiator are in the same direction.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, at the resonant point of the first resonance, the currents on the first feeder are in the same direction; at the resonant point of the second resonance, the currents on the first feeder are in the same direction.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the first frame further includes a third position, wherein the first position, the second position, and the third position are arranged sequentially, and the first frame has a second gap at the third position; the first radiator is the conductive portion of the first frame between the first position and the third position.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the first radiator is also used to generate a third resonance; at the resonant point of the third resonance, the currents on the first radiators on both sides of the first gap are reversed.

[0013] In conjunction with the first aspect, in some implementations of the first aspect, the second end of the first power supply component is an open end.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the second end of the first power supply element is grounded through a capacitive device.

[0015] In conjunction with the first aspect, in some implementations of the first aspect, the first power supply component further includes a grounding point coupled to the grounding point, wherein the lengths of the first power supply components on both sides of the grounding point are different.

[0016] In conjunction with the first aspect, in certain implementations of the first aspect, a first housing and a second housing are provided, the first housing including a first frame, the second housing including a second frame, the second frame being at least partially spaced from the floor, the second frame including a third position and a fourth position, the second frame having a second gap and a third gap respectively at the third position and the fourth position; a first rotating shaft located between the first housing and the second housing, and the first rotating shaft being rotatably connected to both the first housing and the second housing; wherein, the antenna includes: a second radiator, the second radiator being a conductive portion of the second frame between the third position and the fourth position; a second feed element, the first end and the second end of the second feed element being grounded, the second radiator and the second feed element being spaced apart, and the second radiator and the second feed element at least partially overlapping along a second direction, the second direction being a direction perpendicular to the extension direction of the second radiator; a second feed circuit, the second feed element including a second feed point, the second feed circuit being coupled to the second feed point; wherein, the second radiator is used to generate a third resonance and a fourth resonance, the third resonance and the fourth resonance being used to jointly support one operating frequency band of the electronic device.

[0017] In conjunction with the first aspect, in certain implementations of the first aspect, a first housing and a second housing are provided, the first housing including a first frame, the second housing including a second frame, the second frame being at least partially spaced from the floor, the second frame including a third position and a fourth position, the second frame being coupled to the floor at the third position and the fourth position; a first rotating shaft located between the first housing and the second housing, and the first rotating shaft being rotatably connected to both the first housing and the second housing; wherein the antenna includes: a second radiator, the first end and the second end of the second radiator being open ends; a second feed element, the second feed element being a conductive portion of the second frame between the third position and the fourth position, the second radiator and the second feed element being spaced apart, and the second radiator and the second feed element at least partially overlapping along a second direction, the second direction being a direction perpendicular to the extension direction of the second radiator; a second feed circuit, the second feed element including a second feed point, the second feed circuit being coupled to the second feed point; wherein the second radiator is used to generate a third resonance and a fourth resonance, the third resonance and the fourth resonance being used to jointly support one operating frequency band of the electronic device.

[0018] In conjunction with the first aspect, in some implementations of the first aspect, the antenna includes: a second feed element and a second feed circuit; wherein the second feed element is spaced apart from the first feed element and the first radiator; the first end and the second end of the first feed element are open ends, and the first end and the second end of the second feed element are grounded ends; the second feed element includes a second feed point, and the second feed circuit is coupled to the second feed point; the first radiator is used to generate a third resonance and a fourth resonance, and the third resonance and the fourth resonance are used to jointly support an operating frequency band of the electronic device.

[0019] In conjunction with the first aspect, in some implementations of the first aspect, the second end of the first feeder is an open end, and the physical length L1 of the first radiator and the physical length L2 of the first feeder satisfy: L1×70%≤L2≤L1×130%.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the second end of the first power supply component is a ground end, and the physical length L1 of the first radiator and the physical length L2 of the first power supply component satisfy: L1×35%≤L2≤L1×65%.

[0021] In conjunction with the first aspect, in some implementations of the first aspect, the distance D between the first power supply element and the first radiator is less than or equal to 5 mm.

[0022] In conjunction with the first aspect, in some implementations of the first aspect, the electronic device further includes a bracket, a back cover, and a printed circuit board (PCB), with at least a portion of the bracket located between the back cover and the PCB; the power supply component is disposed on the surface of the bracket.

[0023] In a second aspect, an electronic device is provided, comprising: a floor; a first frame, the first frame being at least partially spaced from the floor, the first frame including a grounding point, a first position, and a second position, the first frame having a first gap and a second gap respectively at the first position and the second position, the grounding point being located in a central region between the first position and the second position, the first frame being coupled to the floor at the grounding point; an antenna, the antenna including: a first radiator, the first radiator including a conductive portion of the first frame between the first position and the second position; a first feed element, a first end of the first feed element being a grounding end, the first radiator and the first feed element being spaced apart, and the first radiator and the first feed element at least partially overlapping along a first direction, the first direction being a direction perpendicular to the extension direction of the first radiator; a first feed circuit, the first feed element including a first feed point, the first feed circuit being coupled to the first feed point; wherein the first feed element and the first radiator are used to generate a first resonance and a second resonance, the first resonance and the second resonance being used to jointly support an operating frequency band of the electronic device.

[0024] According to an embodiment of this application, the first radiator can be formed into a radiator structure conforming to a linear antenna. When an electrical signal is fed into the first feed circuit, the antenna can generate the aforementioned first resonance and second resonance to extend the antenna's operating bandwidth. Both the first resonance and the second resonance can be considered as being generated by the linear CM mode. Since the linear CM mode has high radiation efficiency and system efficiency, the antenna has good radiation efficiency and system efficiency within the operating frequency band formed by the first resonance and the second resonance.

[0025] In conjunction with the second aspect, in some implementations of the second aspect, at the resonant point of the first resonance, the currents on the first radiators on both sides of the grounding point are reversed; at the resonant point of the second resonance, the currents on the first radiators on both sides of the grounding point are reversed.

[0026] In conjunction with the second aspect, in some implementations of the second aspect, at the resonant point of the first resonance, the currents on both sides of the center of the first feeder are reversed; at the resonant point of the second resonance, the currents on both sides of the center of the first feeder are reversed.

[0027] In conjunction with the second aspect, in some implementations of the second aspect, the first frame further includes a third position, wherein the first position, the second position, and the third position are arranged sequentially, and the first frame is coupled to the floor at the third position; the first radiator is the conductive portion of the first frame between the first position and the third position.

[0028] In conjunction with the second aspect, in some implementations of the second aspect, the first radiator is also used to generate a third resonance; at the resonant point of the third resonance, the current on the first radiator is reversed.

[0029] In conjunction with the second aspect, in some implementations of the second aspect, the second end of the first power supply component is a grounding end.

[0030] In conjunction with the second aspect, in some implementations of the second aspect, the second end of the first power supply is physically grounded or grounded through an inductive device.

[0031] In conjunction with the second aspect, in some implementations of the second aspect, a first housing and a second housing are provided, the first housing including a first frame, the second housing including a second frame, the second frame being at least partially spaced from the floor, the second frame including a third position and a fourth position, the second frame being coupled to the floor at the third position and the fourth position, the second frame having a third gap between the first position and the second position, the third gap being located in the central region between the first position and the second position; a first pivot is provided, the first pivot being located between the first housing and the second housing, and the first pivot being rotatably connected to both the first housing and the second housing; wherein, The antenna includes: a second radiator, which is a conductive portion of the second frame between the third and fourth positions; a second feed element, with a first end and a second end being open, the second radiator and the second feed element being spaced apart and at least partially overlapping along a second direction, the second direction being a direction perpendicular to the extension direction of the second radiator; and a second feed circuit, the second feed element including a second feed point, the second feed circuit being coupled to the second feed point; wherein the second radiator is used to generate a third resonance and a fourth resonance, the third resonance and the fourth resonance being used to jointly support one operating frequency band of the electronic device.

[0032] In conjunction with the second aspect, in some implementations of the second aspect, a first housing and a second housing are provided, the first housing including a first frame, the second housing including a second frame, the second frame being at least partially spaced from the floor, the second frame including a third position and a fourth position, the second frame having a third gap and a fourth gap respectively at the third position and the fourth position; a first rotating shaft located between the first housing and the second housing, and the first rotating shaft being rotatably connected to both the first housing and the second housing; wherein, the antenna includes: a second radiator, the first end and the second end of the second radiator being grounded terminals; a second feed element, the second feed element being a conductive portion of the second frame between the third position and the fourth position, the second radiator and the second feed element being spaced apart, and the second radiator and the second feed element at least partially overlapping along a second direction, the second direction being a direction perpendicular to the extension direction of the second radiator; a second feed circuit, the second feed element including a second feed point, the second feed circuit being coupled to the second feed point; wherein, the second radiator is used to generate a third resonance and a fourth resonance, the third resonance and the fourth resonance being used to jointly support one operating frequency band of the electronic device.

[0033] In conjunction with the second aspect, in some implementations of the second aspect, the antenna includes: a second feed element and a second feed circuit; wherein the second feed element is spaced apart from the first feed element and the first radiator; a first end and a second end of the first feed element are grounded ends, and a first end and a second end of the second feed element are open ends; the second feed element includes a second feed point, and the second feed circuit is coupled to the second feed point; the first radiator is used to generate a third resonance and a fourth resonance, and the third resonance and the fourth resonance are used to jointly support an operating frequency band of the electronic device.

[0034] In conjunction with the second aspect, in some implementations of the second aspect, the second end of the first power supply component is a ground end, and the physical length L1 of the first radiator and the physical length L2 of the first power supply component satisfy: L1×70%≤L2≤L1×130%.

[0035] In conjunction with the second aspect, in some implementations of the second aspect, the second end of the first feeder is an open end, and the physical length L1 of the first radiator and the physical length L2 of the first feeder satisfy: L1×35%≤L2≤L1×65%.

[0036] In conjunction with the second aspect, in some implementations of the second aspect, the distance D between the first feeder and the first radiator is less than or equal to 5 mm.

[0037] In conjunction with the second aspect, in some implementations of the second aspect, the electronic device further includes a bracket, a back cover, and a printed circuit board (PCB), with at least a portion of the bracket located between the back cover and the PCB; the power supply component is disposed on the surface of the bracket. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0039] Figure 2 This is a schematic diagram of the common-mode structure of an antenna provided in this application and the corresponding current and electric field distribution.

[0040] Figure 3 This is a schematic diagram of the differential mode structure of an antenna provided in this application and the corresponding current and electric field distribution.

[0041] Figure 4 This is a diagram showing the structure of the common-mode antenna provided in this application and the corresponding distribution of current, electric field, and magnetic current.

[0042] Figure 5 This is the structure of the differential mode of the antenna provided in this application and the corresponding distribution diagram of current, electric field and magnetic current.

[0043] Figure 6 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0044] Figure 7 yes Figure 6 Simulation results of the S-parameters of the antenna 100 in the electronic device 10 shown.

[0045] Figure 8 yes Figure 6 Simulation results of the system efficiency and radiation efficiency of antenna 100 in the electronic device 10 shown.

[0046] Figure 9 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0047] Figure 10 This is a partial cross-sectional view of the electronic device 10 provided in the embodiments of this application along a first direction.

[0048] Figure 11 yes Figure 9 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0049] Figure 12 yes Figure 9 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0050] Figure 13 yes Figure 9 The diagram shows the current distribution of the antenna at the first resonance point (1.87 GHz).

[0051] Figure 14 yes Figure 9 The diagram shows the current distribution of the antenna at the second resonance point (2.23 GHz).

[0052] Figure 15 yes Figure 9 The diagram shows the current distribution of the antenna at 3.19 GHz.

[0053] Figure 16 yes Figure 9 The diagram shows the electric field distribution of the antenna at the first resonance point (1.87 GHz).

[0054] Figure 17 yes Figure 9 The diagram shows the electric field distribution of the antenna at the resonant point (2.23 GHz) of the second resonance.

[0055] Figure 18 yes Figure 9 The diagram shows the electric field distribution of the antenna at 3.19 GHz.

[0056] Figure 19 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0057] Figure 20 yes Figure 19 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 under different conditions.

[0058] Figure 21 yes Figure 19 Simulation results of system efficiency and radiation efficiency of antenna 200 in electronic device 10 under different conditions.

[0059] Figure 22 yes Figure 19 Simulation results of the S-parameters of the antenna in the electronic device 10 shown, with the feeder set in different positions.

[0060] Figure 23 yes Figure 19 Simulation results of the system efficiency and radiation efficiency of the antenna in the electronic device 10 with the feeder set in different positions.

[0061] Figure 24 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0062] Figure 25 yes Figure 24Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0063] Figure 26 yes Figure 24 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0064] Figure 27 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0065] Figure 28 yes Figure 27 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0066] Figure 29 yes Figure 27 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0067] Figure 30 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0068] Figure 31 yes Figure 9 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0069] Figure 32 yes Figure 30 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0070] Figure 33 yes Figure 30 The diagram shows the current distribution of the antenna at the first resonance point (2.12 GHz).

[0071] Figure 34 yes Figure 30 The diagram shows the current distribution of the antenna at the second resonance point (2.45 GHz).

[0072] Figure 35 yes Figure 30 The diagram shows the current distribution of the antenna at the third resonance point (3.43 GHz).

[0073] Figure 36 yes Figure 30 The diagram shows the current distribution of the antenna at the fourth resonance point (3.54 GHz).

[0074] Figure 37 yes Figure 30 The diagram shows the electric field distribution of the antenna at the first resonance point (2.12 GHz).

[0075] Figure 38 yes Figure 30 The diagram shows the electric field distribution of the antenna at the second resonance point (2.45 GHz).

[0076] Figure 39 yes Figure 30 The diagram shows the electric field distribution of the antenna at the resonant point of the third resonance (3.43 GHz).

[0077] Figure 40 yes Figure 30 The diagram shows the electric field distribution of the antenna at the fourth resonance point (3.54 GHz).

[0078] Figure 41 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0079] Figure 42 yes Figure 41 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0080] Figure 43 yes Figure 41 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0081] Figure 44 yes Figure 41 The diagram shows the current distribution of the antenna at the first resonance point (1.79 GHz).

[0082] Figure 45 yes Figure 30 The diagram shows the current distribution of the antenna at the second resonance point (2.01 GHz).

[0083] Figure 46 yes Figure 30 The diagram shows the current distribution of the antenna at the fifth resonance point (2.24 GHz).

[0084] Figure 47 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0085] Figure 48 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0086] Figure 49 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0087] Figure 50 yes Figure 49 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0088] Figure 51 yes Figure 49 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0089] Figure 52 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0090] Figure 53 yes Figure 52 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0091] Figure 54 yes Figure 52 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0092] Figure 55 yes Figure 52 The diagram shows the current distribution of the antenna at the first resonance point (1.88 GHz).

[0093] Figure 56 yes Figure 52 The diagram shows the current distribution of the antenna at the second resonance point (2.16 GHz).

[0094] Figure 57 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0095] Figure 58 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0096] Figure 59 yes Figure 58 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0097] Figure 60 yes Figure 58 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0098] Figure 61 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0099] Figure 62 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0100] Figure 63 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0101] Figure 64 yes Figure 62Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0102] Figure 65 yes Figure 62 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0103] Figure 66 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0104] Figure 67 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0105] Figure 68 yes Figure 67 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0106] Figure 69 yes Figure 67 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0107] Figure 70 yes Figure 67 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0108] Figure 71 yes Figure 67 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0109] Figure 72 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0110] Figure 73 yes Figure 72 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown.

[0111] Figure 74 yes Figure 72 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0112] Figure 75 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0113] Figure 76 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0114] Figure 77 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0115] Figure 78 yes Figure 76 The simulation results of the S-parameters of the antenna 200 of the electronic device 10 in the deployed state are shown.

[0116] Figure 79 yes Figure 76 The simulation results of the S-parameters of the antenna 200 of the electronic device 10 in the folded state are shown.

[0117] Figure 80 yes Figure 76 The simulation results show the system efficiency and radiation efficiency of the antenna 200 when the electronic device 10 is in the deployed state.

[0118] Figure 81 yes Figure 76 The simulation results show the system efficiency and radiation efficiency of the antenna 200 when the electronic device 10 is in the folded state.

[0119] Figure 82 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0120] Figure 83 yes Figure 82 The simulation results of the S-parameters of the antenna 200 of the electronic device 10 in the deployed state are shown.

[0121] Figure 84 yes Figure 82 The simulation results of the S-parameters of the antenna 200 of the electronic device 10 in the folded state are shown.

[0122] Figure 85 yes Figure 82 The simulation results show the system efficiency and radiation efficiency of the antenna 200 when the electronic device 10 is in the deployed state.

[0123] Figure 86 yes Figure 82 The simulation results show the system efficiency and radiation efficiency of the antenna 200 when the electronic device 10 is in the folded state.

[0124] Figure 87 yes Figure 82 The simulation results of the directivity coefficient of the antenna 200 when the electronic device 10 is in the deployed state.

[0125] Figure 88 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0126] Figure 89 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0127] Figure 90 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0128] Figure 91 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application. Detailed Implementation

[0129] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0130] It should be understood that the term "and / or" used in this document is merely a description of the same field in the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0131] The phrase "within the range" used in this application, unless otherwise specified, includes both endpoints of the range by default. For example, in the range of 1 to 5, it includes the values ​​1 and 5.

[0132] Coupling can be understood as direct coupling and / or indirect coupling. "Coupled connection" can be understood as a direct coupling connection and / or indirect coupling connection. Direct coupling can also be called "electrical connection," which can be understood as physical contact and electrical conduction between components; it can also be understood as the form of connection between different components in a circuit structure through physical lines that can transmit electrical signals, such as copper foil or wires on a printed circuit board (PCB). "Indirect coupling" can be understood as electrical conduction between two conductors through a gap / non-contact method. In one embodiment, indirect coupling can also be called capacitive coupling, for example, signal transmission is achieved by forming an equivalent capacitance through coupling between the gaps between two conductive parts.

[0133] Components / devices: including at least one of lumped components / devices and distributed components / devices.

[0134] Lumped element / device: This refers to all components whose size is much smaller than the wavelength relative to the circuit's operating frequency. For signals, the characteristics of the components remain constant at all times, regardless of frequency.

[0135] Distributed elements / devices: Unlike lumped elements, if the size of an element is similar to or larger than the wavelength of the circuit's operating frequency, then when a signal passes through the element, the characteristics of each point on the element will vary due to the signal change. In this case, the element as a whole cannot be regarded as a single entity with fixed characteristics, but should be called a distributed element.

[0136] Capacitor: can be understood as lumped capacitance and / or distributed capacitance. Lumped capacitance refers to capacitive components, such as capacitor elements; distributed capacitance (or distributed capacitance) refers to the equivalent capacitance formed by two conductive components separated by a certain gap.

[0137] Inductance: can be understood as lumped inductance and / or distributed inductance. Lumped inductance refers to inductive components, such as inductor elements; distributed inductance (or distributed inductance) refers to the equivalent inductance formed through a conductive element of a certain length.

[0138] Inductive devices: can be understood as including one or more inductors, or a combination of one or more inductors and one or more capacitors, or may also include a combination of other devices (such as resistors). The inductive device as a whole should be inductive.

[0139] Capacitive devices: can be understood as including one or more capacitors, or a combination of one or more capacitors and one or more inductors, or may also include a combination of other devices (such as resistors). The capacitive devices as a whole should be capacitive.

[0140] Radiator: In an antenna, this is the device used to receive / transmit electromagnetic wave radiation. In some cases, the term "antenna" is narrowly defined as a radiator, which converts guided wave energy from the transmitter into radio waves, or converts radio waves into guided wave energy, for radiating and receiving radio waves. The modulated high-frequency current energy (or guided wave energy) generated by the transmitter is transmitted to the transmitting radiator via a feed line, where it is converted into electromagnetic wave energy of a specific polarization and radiated in the desired direction. The receiving radiator converts the electromagnetic wave energy of a specific polarization from a specific direction in space back into modulated high-frequency current energy, which is then transmitted to the receiver input via a feed line.

[0141] The radiator may include a conductor with a specific shape and size, such as a wire or sheet, and this application does not limit the specific shape. In one embodiment, the wire radiator may be simply referred to as a wire antenna. In one embodiment, the wire radiator may be implemented by a conductive frame, and may also be referred to as a frame antenna. In one embodiment, the wire radiator may be implemented by a support conductor, and may also be referred to as a support antenna. In one embodiment, the wire diameter (e.g., including thickness and width) of the wire radiator, or the radiator of the wire antenna, is much smaller than the wavelength (e.g., the wavelength of the medium) (e.g., less than 1 / 16 of the wavelength), and the length may be comparable to the wavelength (e.g., the wavelength of the medium) (e.g., the length is around 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). The main forms of wire antennas include dipole antennas, half-wave dipole antennas, monopole antennas, loop antennas, and inverted F antennas (also known as IFA, Inverted F Antenna). For example, in a dipole antenna, each dipole antenna typically includes two radiating stubs, each fed from the feed end of the radiating stub by a feed section. For example, an inverted-F antenna (IFA) can be considered as a monopole antenna with an added ground path. An IFA antenna has one feed point and one ground point, and is called an inverted-F antenna because its side view is inverted-F shaped. In one embodiment, the sheet radiator may include a microstrip antenna or a patch antenna, such as a planar inverted-F antenna (also known as a PIFA). In one embodiment, the sheet radiator may be implemented using a planar conductor (e.g., a conductive sheet or conductive coating). In one embodiment, the sheet radiator may include a conductive sheet, such as a copper sheet. In one embodiment, the sheet radiator may include a conductive coating, such as silver paste. The shape of the sheet radiator includes circular, rectangular, and annular shapes, and this application does not limit the specific shape. The structure of a microstrip antenna generally consists of a dielectric substrate, a radiator, and a ground plane, wherein the dielectric substrate is disposed between the radiator and the ground plane.

[0142] Radiators may also include slots or gaps formed on a conductor, for example, closed or semi-closed slots or gaps formed on a grounded conductor surface. In one embodiment, a slotted or slit radiator may be simply referred to as a slot antenna or a gap antenna. In one embodiment, the radial dimension (e.g., including width) of the slot or gap of the slot antenna / gap antenna is much smaller than the wavelength (e.g., the dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), while the length dimension may be comparable to the wavelength (e.g., the dielectric wavelength) (e.g., a length of approximately 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). In one embodiment, a radiator with a closed slot or gap may be simply referred to as a closed slot antenna. In one embodiment, a radiator with a semi-closed slot or gap (e.g., an opening added to a closed slot or gap) may be simply referred to as an open slot antenna. In some embodiments, the gap shape is elongated. In some embodiments, the length of the gap is approximately half a wavelength (e.g., the dielectric wavelength). In some embodiments, the length of the gap is approximately an integer multiple of a wavelength (e.g., one dielectric wavelength). In some embodiments, the slot can be fed by transmission lines connected across one or both sides, thereby exciting a radio frequency electromagnetic field on the slot and radiating electromagnetic waves into space. In one embodiment, the radiator of the slot antenna or gap antenna can be implemented by a conductive frame grounded at both ends, also known as a frame antenna; in this embodiment, the slot antenna or gap antenna can be viewed as including a linear radiator, the linear radiator being spaced apart from the ground and grounded at both ends, thereby forming a closed or semi-closed slot or gap. In one embodiment, the radiator of the slot antenna or gap antenna can be implemented by a support conductor grounded at both ends, also known as a support antenna.

[0143] A power supply circuit is a combination of all circuits used for receiving and transmitting radio frequency (RF) signals. It can include a transceiver and an RF front-end. In some cases, the term "power supply circuit" is narrowly interpreted as an RF integrated circuit (RFIC), which can be considered to include both the RF front-end chip and the transceiver. The power supply circuit has the function of converting radio waves (e.g., RF signals) into electrical signals (e.g., digital signals). It is generally considered part of the RF component.

[0144] In some embodiments, the electronic device may also include a test socket (or, RF socket or RF test socket). This test socket can be used to insert a coaxial cable to test the characteristics of the RF front-end circuitry or the radiator of the antenna. The RF front-end circuitry can be considered as the circuitry coupled between the test socket and the transceiver.

[0145] In some embodiments, the radio frequency front-end circuit can be integrated into a radio frequency front-end chip in an electronic device, or the radio frequency front-end circuit and the transceiver can be integrated into a radio frequency chip in an electronic device.

[0146] It should be understood that any two feed circuits in the first / second / ...Nth feed circuit of this application can share the same transceiver, for example, by transmitting signals through a radio frequency channel (e.g., a port (pin) of a radio frequency chip) in a transceiver; they can also share a radio frequency front-end circuit, for example, by processing signals through a switch or amplifier in a radio frequency front-end.

[0147] It should also be understood that the two feed circuits in the first / second / ...Nth feed circuit of this application typically correspond to two RF test sockets in an electronic device.

[0148] A matching circuit is a circuit used to adjust the radiation characteristics of an antenna. In one embodiment, the matching circuit is coupled between the feed circuit and the corresponding radiator. In another embodiment, the matching circuit is coupled between the test mount and the radiator. Typically, the matching circuit is a combination of circuits coupled between the radiator and the ground plane. In one embodiment, the matching circuit may include switches and / or electronic components, where the switches may be electronic components for switching the coupling connections of the radiator. The matching circuit has impedance matching and / or frequency tuning functions. It is typically considered part of the antenna.

[0149] The grounding / feeding structure may include connectors, such as metal springs, and the radiator is coupled to the ground / feeding circuit via the grounding structure. In some embodiments, the feeding structure may include a transmission line / feeding wire, and the grounding structure may include a grounding wire.

[0150] End / Point: The term "end / point" in the context of the antenna radiator's first end / second end / feed end / ground end / feed point / ground point / connection point should not be narrowly interpreted as necessarily being a point or end physically disconnected from other radiators. It can also be considered as a point or segment on a continuous radiator. In one embodiment, "end / point" can include a connection / coupling region on the antenna radiator that is coupled to other conductive structures. For example, a feed end / feed point can be a coupling region on the antenna radiator that is coupled to a feed structure (e.g., a region facing a part of the feed structure). Similarly, a ground end / ground point can be a connection / coupling region on the antenna radiator that is coupled to a ground structure.

[0151] Open terminal, closed terminal: In some embodiments, open terminal and closed terminal are relative to whether or not they are grounded; the closed terminal is grounded, and the open terminal is not grounded. In one embodiment, the open terminal may also be referred to as a floating terminal, free terminal, open terminal, or open circuit terminal. In one embodiment, the closed terminal may also be referred to as a grounded terminal or short circuit terminal. It should be understood that in some embodiments, other conductors can be coupled through the open terminal to transfer coupled energy (which can be understood as transferring current).

[0152] In some embodiments, the open end and the closed end are, for example, relative to other conductors, with the closed end electrically connected to other conductors and the open end not electrically connected to other conductors.

[0153] To put it simply, the "open end" of a radiator can be defined as one end of the radiator that is spaced apart from the floor or coupled to the floor through a capacitive device.

[0154] To put it simply, the "grounding terminal" of a radiator can be understood as: if one end of the radiator is directly connected to the floor or coupled to the floor through an inductive device, it can be regarded as the grounding terminal of the radiator.

[0155] In some embodiments, the understanding of "closed end" can also be from the perspective of current distribution. A closed end or ground end can be understood as a point of high current or low electric field on a radiator. In one embodiment, coupling electronic devices (e.g., inductive devices) through a closed end can maintain the current distribution characteristics of the point of high current / low electric field. In one embodiment, opening a slit at or near the closed end (e.g., filling the slit with insulating material) can maintain the current distribution characteristics of the point of high current / low electric field.

[0156] In some embodiments, the understanding of "open terminal" can also be from the perspective of current distribution. An open terminal or a floating terminal can be understood as a point with a small current or a point with a large electric field on the radiator. In one embodiment, coupling electronic devices (e.g., capacitive devices) through an open terminal can maintain the current distribution characteristics of the point with a small current or a large electric field.

[0157] It should be understood that when an electronic device (e.g., capacitor, inductor, etc.) is coupled at the radiator end of a gap (which, from the perspective of the radiator's structure, resembles a radiator at the opening of an open or suspended end), the radiator end can be a point with a large current / small electric field. In this case, it should be understood that the radiator end at the gap is actually a closed end or a grounded end, etc.

[0158] The "floating radiator" mentioned in the embodiments of this application refers to a radiator that is not directly connected to the feed line / feed branch and / or ground line / ground branch, but is fed and / or grounded through indirect coupling.

[0159] It should be understood that "suspended" in "suspended end" or "suspended radiator" does not mean that there is no structure around the radiator to support it. In one embodiment, the suspended radiator may be, for example, a radiator disposed on the inner surface of an insulating back cover.

[0160] The current in the same direction / opposite direction mentioned in the embodiments of this application should be understood as the main current on the same side of the conductor being in the same direction / opposite direction. For example, when a current distributed in the same direction is excited on a conductor that is bent or looped (e.g., the current path is also bent or looped), it should be understood that, for example, the main current excited on the conductors on both sides of a looped conductor (e.g., on the conductors on both sides of a gap) is opposite in direction, but it still falls under the definition of current distributed in the same direction in the embodiments of this application. In one embodiment, current in the same direction on a conductor can mean that the current on the conductor has no reverse point. In one embodiment, current in opposite direction on a conductor can mean that the current on the conductor has at least one reverse point. In one embodiment, current in the same direction on two conductors can mean that the current on both conductors has no reverse point and flows in the same direction. In one embodiment, current in opposite direction on two conductors can mean that the current on both conductors has no reverse point and flows in opposite directions. Current in the same direction / opposite direction on multiple conductors can be understood accordingly.

[0161] The "same direction / opposite direction" of electric fields mentioned in the embodiments of this application should be understood as the direction of the main electric field generated by the conductor in space (e.g., the electric field between the conductor and the ground) being the same direction / opposite direction. For example, when a unidirectionally distributed electric field is excited on a conductor that is bent or ring-shaped (e.g., the gap formed between the ground and the conductor is also bent or ring-shaped), it should be understood that, for example, the direction of the electric field in the gap is from the ground to the conductor, or from the conductor to the ground. Although the main electric field excited in the gaps on both sides of the ring-shaped conductor (e.g., the gaps on both sides of the gap surrounding a slit) is opposite in direction, it still falls under the definition of a unidirectionally distributed electric field in the embodiments of this application. In one embodiment, a unidirectional electric field between a conductor and the ground can mean that the electric field between the conductor and the ground has no opposite point. In one embodiment, an opposite electric field between a conductor and the ground can mean that the electric field between the conductor and the ground has at least one opposite point. In one embodiment, a unidirectional electric field between two conductors and the ground can mean that the electric fields between the two conductors and the ground have no opposite points and radiate in the same direction (e.g., the positive z-axis). In one embodiment, the opposite electric fields between two conductors and the ground can mean that the electric fields between the two conductors and the ground have no point of reversal and flow in opposite directions. Correspondingly, the same / opposite electric fields between multiple conductors and the ground can be understood.

[0162] Resonance / Resonant Frequency: The resonant frequency is also called the resonance frequency. The resonant frequency can have a frequency range, that is, the frequency range in which resonance occurs. The frequency corresponding to the strongest resonance point is the center frequency. The return loss characteristic of the center frequency can be less than -20dB. It should be understood that, unless otherwise specified, when the antenna / radiator mentioned in this application generates "first / second...resonance," the first resonance should be the fundamental mode resonance generated by the antenna / radiator, or in other words, the lowest frequency resonance generated by the antenna / radiator. It should be understood that the antenna / radiator can generate one or more antenna modes according to a specific design, and each antenna mode can correspond to a fundamental mode resonance.

[0163] Resonant frequency band: The range of resonant frequencies is the resonant frequency band. The return loss characteristics at any frequency point within the resonant frequency band can be less than -6dB or -5dB.

[0164] Communication band / operating band: Regardless of the type of antenna, it always operates within a certain frequency range (bandwidth). For example, an antenna supporting the B40 band operates within the frequency range of 2300MHz to 2400MHz, or in other words, the antenna's operating band includes the B40 band. The frequency range that meets the specifications can be considered the antenna's operating band.

[0165] The resonant frequency band and the operating frequency band can be the same or can partially overlap. In one embodiment, one or more resonant frequency bands of the antenna can cover one or more operating frequency bands of the antenna.

[0166] Electrical length: can be the ratio of physical length (i.e., mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave. Electrical length can satisfy the following formula:

[0167]

[0168] Where L is the physical length and λ is the wavelength of the electromagnetic wave.

[0169] Wavelength: or operating wavelength, can be the wavelength corresponding to the center frequency of the resonant frequency or the center frequency of the operating frequency band supported by the antenna. For example, assuming the center frequency of the B1 uplink band (resonant frequency from 1920MHz to 1980MHz) is 1955MHz, then the operating wavelength can be the wavelength calculated using this frequency. Not limited to the center frequency, "operating wavelength" can also refer to the wavelength corresponding to the non-center frequency of the resonant frequency or operating frequency band.

[0170] It should be understood that the wavelength of the radiation signal in air can be calculated as follows: (air wavelength, or vacuum wavelength) = speed of light / frequency, where the frequency is the frequency of the radiation signal (MHz), and the speed of light can be taken as 3 × 10⁻⁶. 8m / s. The wavelength of the radiated signal in the medium can be calculated as follows: Where ε is the relative permittivity of the medium. The wavelength in the embodiments of this application typically refers to the medium wavelength, which can be the medium wavelength corresponding to the center frequency of the resonant frequency, or the medium wavelength corresponding to the center frequency of the operating frequency band supported by the antenna. For example, assuming the center frequency of the B1 uplink band (resonant frequency of 1920MHz to 1980MHz) is 1955MHz, then the wavelength can be the medium wavelength calculated using this frequency. Not limited to the center frequency, the "medium wavelength" can also refer to the medium wavelength corresponding to the non-center frequency of the resonant frequency or operating frequency band. For ease of understanding, the medium wavelength mentioned in the embodiments of this application can be simply calculated using the relative permittivity of the medium filling one or more sides of the radiator.

[0171] Length: refers to physical length or measured length. It should be understood that the "length" mentioned in the embodiments of this application is different from "electrical length". Among them, "length of radiator" should be understood as equivalent to "physical length of radiator", and the length of other structures in the embodiments of this application should also be understood in the same way.

[0172] Those skilled in the art will understand that efficiency is generally expressed as a percentage, and there is a corresponding conversion relationship between it and dB. The closer the efficiency is to 0dB, the better the efficiency of the antenna.

[0173] Antenna radiation pattern: also known as radiation pattern. It refers to the graph showing the relative field strength (normalized modulus) of the antenna's radiated field as a function of direction at a certain distance from the antenna (far field). It is usually represented by two mutually perpendicular planar radiation patterns passing through the direction of maximum radiation of the antenna.

[0174] Antenna radiation patterns typically have multiple radiating beams. The beam with the highest radiating intensity is called the main lobe, and the remaining beams are called side lobes. Among the side lobes, the side lobe in the opposite direction to the main lobe is also called the back lobe.

[0175] Directivity: Also known as the antenna's directivity. It refers to the ratio of the maximum power density to the average power density on the antenna's radiation pattern at a certain distance from the antenna (far field), and is a dimensionless ratio greater than or equal to 1. It can be used to indicate the energy radiation characteristics of an antenna. The larger the directivity, the more energy the antenna radiates in a particular direction, and the more concentrated the energy radiation is.

[0176] Antenna system efficiency (total efficiency): refers to the ratio of input power to output power at the antenna port.

[0177] Antenna radiation efficiency refers to the ratio of the power radiated into space by an antenna (i.e., the power effectively converted into electromagnetic waves) to the active power input to the antenna. Active power input to the antenna = antenna input power - loss power; loss power mainly includes return loss power and ohmic loss power of metals and / or dielectric loss power. Radiation efficiency is a measure of an antenna's radiation capability; metal loss and dielectric loss are both factors affecting radiation efficiency.

[0178] Those skilled in the art will understand that efficiency is generally expressed as a percentage, and there is a corresponding conversion relationship between it and dB. The closer the efficiency is to 0dB, the better the efficiency of the antenna.

[0179] Antenna return loss: This can be understood as the ratio of the signal power reflected back to the antenna port after passing through the antenna circuit to the transmit power at the antenna port. The smaller the reflected signal, the larger the signal radiated into space through the antenna, and the higher the antenna's radiation efficiency. Conversely, the larger the reflected signal, the smaller the signal radiated into space through the antenna, and the lower the antenna's radiation efficiency.

[0180] Antenna return loss can be represented by the S11 parameter, which is one of the S-parameters. S11 represents the reflection coefficient, and this parameter characterizes the antenna's transmission efficiency. The S11 parameter is usually negative. The smaller the S11 parameter, the smaller the antenna return loss, the less energy the antenna reflects back, which means more energy actually enters the antenna, and the higher the antenna's system efficiency. Conversely, the larger the S11 parameter, the greater the antenna return loss, and the lower the antenna's system efficiency.

[0181] It should be noted that in engineering, an S11 value of -6dB is generally used as the standard. When the S11 value of an antenna is less than -6dB, the antenna can be considered to be working normally, or the antenna can be considered to have good transmission efficiency.

[0182] Understandably, the phrase "the first frequency band and the second frequency band are the same" (also known as "same frequency") mentioned in the embodiments of this application can be understood as any of the following situations:

[0183] The first and second frequency bands include the same communication frequency band. In one embodiment, the first and second frequency bands can be applied to a MIMO antenna system. For example, if both the first and second frequency bands include the sub-6GHz frequency band in 5G, then the first and second frequency bands can be considered to be on the same frequency.

[0184] If the first frequency band and the second frequency band have at least some frequency overlap, for example, the first frequency band includes B35 (1.85-1.91GHz) in LTE and the second frequency band includes B39 (1.88-1.92GHz) in LTE. Since the frequencies of the first frequency band and the second frequency band partially overlap, it can be considered that the first frequency band and the second frequency band are on the same frequency.

[0185] It should be understood that, as mentioned in the embodiments of this application, the proximity of the first frequency band and the second frequency band can be interpreted as:

[0186] In the first and second frequency bands, the distance between the starting frequency of the higher frequency band and the ending frequency of the lower frequency band is less than 10% of the center frequency of the higher frequency band (or, the distance is less than or equal to 200MHz). For example, if the first frequency band includes B3 (1.71-1.785GHz) in LTE and the second frequency band includes L1 (1578.42±1.023MHz) in GPS, and B3 (1.71-1.785GHz) and L1 (1578.42±1.023MHz) are adjacent frequency bands, then the first and second frequency bands can be considered to be adjacent. Alternatively, for example, if the first frequency band includes B40 (2.3-2.4GHz) or B41 (2.496-2.69GHz) in LTE, and the second frequency band includes the WiFi / BT band (2.4-2.485GHz), then the first and second frequency bands can be considered to be adjacent.

[0187] Ground (GND): Generally refers to at least a portion of any grounding layer, ground plane, or grounding metal layer within an electronic device (such as a mobile phone), or at least a portion of any combination of the aforementioned grounding layers, ground planes, or grounding components. "Ground" can be used for grounding components within an electronic device. In one embodiment, "ground" can be the grounding layer of a circuit board in an electronic device, or a grounding metal layer formed by a ground plane formed within the frame of the electronic device or a metal film formed beneath the screen. In one embodiment, the circuit board can be a printed circuit board (PCB), such as an 8-layer, 10-layer, or 12-14-layer board having 8, 10, 12, 13, or 14 layers of conductive material, or components separated and electrically insulated by dielectric or insulating layers such as fiberglass or polymers. In one embodiment, the circuit board includes a dielectric substrate, a grounding layer, and a trace layer, with the trace layer and grounding layer electrically connected via vias. In one embodiment, components such as displays, touchscreens, input buttons, transmitters, processors, memory, batteries, charging circuits, and system-on-chip (SoC) architectures can be mounted on or connected to a circuit board; or electrically connected to trace layers and / or ground layers in the circuit board. For example, an RF source is disposed on a trace layer.

[0188] Any of the aforementioned grounding layers, ground planes, or grounding metal layers are made of conductive materials. In one embodiment, the conductive material may be any of the following: copper, aluminum, stainless steel, brass and their alloys, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, silver-plated copper, silver-plated copper foil on an insulating substrate, silver foil on an insulating substrate and tin-plated copper, graphite-impregnated cloth, graphite-coated substrates, copper-plated substrates, brass-plated substrates, and aluminum-plated substrates. Those skilled in the art will understand that grounding layers / ground planes / grounding metal layers may also be made of other conductive materials.

[0189] Grounding: refers to coupling with the aforementioned ground / floor in any way. In one embodiment, grounding can be achieved through direct grounding, such as through a structural component of the mid-frame to achieve a physical ground (or physical ground) at a specific location on the frame. In another embodiment, grounding can be achieved through device grounding, such as through devices like capacitors / inductors / resistors connected in series or parallel (or device ground).

[0190] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings.

[0191] like Figure 1As shown, the electronic device 10 may include: a cover 13, a display / module 15, a printed circuit board (PCB) 17, a middle frame 19, and a rear cover 21. It should be understood that in some embodiments, the cover 13 may be a glass cover, but it may also be replaced with a cover made of other materials, such as a PET (Polyethylene terephthalate) cover.

[0192] The cover plate 13 can be set close to the display module 15, and can be mainly used to protect the display module 15 from dust.

[0193] In one embodiment, the display module 15 may include a liquid crystal display (LCD), a light emitting diode (LED) display panel, or an organic light-emitting diode (OLED) display panel, etc., and this application embodiment does not limit this.

[0194] The middle frame 19 mainly serves to support the entire machine. Figure 1The diagram shows PCB 17 positioned between the middle frame 19 and the back cover 21. It should be understood that in one embodiment, PCB 17 may also be positioned between the middle frame 19 and the display module 15; this application does not limit this. The printed circuit board PCB 17 can be made of flame-retardant material (FR-4) dielectric substrate, Rogers dielectric substrate, or a hybrid dielectric substrate of Rogers and FR-4, etc. Here, FR-4 is a designation for a flame-retardant material grade, and Rogers dielectric substrate is a high-frequency board. Electronic components, such as radio frequency chips, are carried on PCB 17. In one embodiment, a metal layer can be provided on the printed circuit board PCB 17. This metal layer can be used for grounding the electronic components carried on the printed circuit board PCB 17, or for grounding other components, such as bracket antennas, frame antennas, etc. This metal layer can be called a ground plane, grounding plate, or grounding layer. In one embodiment, this metal layer can be formed by etching metal onto the surface of any dielectric substrate in PCB 17. In one embodiment, the grounding metal layer can be located on the side of the printed circuit board PCB 17 near the middle frame 19. In one embodiment, the edge of the printed circuit board PCB 17 can be considered as the edge of its ground plane. In one embodiment, the metal frame 19 can also be used for grounding the aforementioned components. The electronic device 10 may also have other ground planes / grounding layers, as previously described, and will not be repeated here.

[0195] The electronic device 10 may also include a battery (not shown in the figure). The battery may be disposed between the middle frame 19 and the back cover 21, or between the middle frame 19 and the display module 15; this embodiment does not limit this. In some embodiments, the PCB 17 is divided into a motherboard and a daughterboard, and the battery may be disposed between the motherboard and the daughterboard. The motherboard may be disposed between the middle frame 19 and the upper edge of the battery, and the daughterboard may be disposed between the middle frame 19 and the lower edge of the battery.

[0196] The electronic device 10 may also include a bezel 11, which may be formed of a conductive material such as metal. The bezel 11 may be disposed between the display module 15 and the back cover 21 and extend circumferentially around the periphery of the electronic device 10. The bezel 11 may have four sides surrounding the display module 15 to help secure the display module 15. In one implementation, the bezel 11 made of metal can be directly used as the metal bezel of the electronic device 10, forming a metal bezel appearance suitable for industrial design (ID). In another implementation, the outer surface of the bezel 11 may also be made of a non-metallic material, such as a plastic bezel, forming a non-metallic bezel appearance suitable for non-metallic ID.

[0197] The middle frame 19 may include the frame 11. The middle frame 19, including the frame 11, is a single unit that supports the electronic components in the device. The cover plate 13 and the rear cover 21 respectively cover the upper and lower edges of the frame to form the housing of the electronic device. In one embodiment, the cover plate 13, the rear cover 21, the frame 11, and / or the middle frame 19 may be collectively referred to as the housing of the electronic device 10. It should be understood that "housing" may refer to part or all of any one of the cover plate 13, the rear cover 21, the frame 11, or the middle frame 19, or to any combination of the cover plate 13, the rear cover 21, the frame 11, or the middle frame 19.

[0198] The border 11 on the middle frame 19 can at least partially serve as an antenna radiator to receive / transmit radio frequency signals. This portion of the border serving as the radiator can have gaps between it and the rest of the middle frame 19, thereby ensuring a good radiation environment for the antenna radiator. In one embodiment, the middle frame 19 can have an aperture at this portion of the border serving as the radiator to facilitate antenna radiation.

[0199] Alternatively, the frame 11 may not be considered part of the middle frame 19. In one embodiment, the frame 11 may be connected to and integrally formed with the middle frame 19. In another embodiment, the frame 11 may include inwardly extending protrusions to connect with the middle frame 19, for example, by means of spring clips, screws, welding, etc. The protrusions of the frame 11 can also be used to receive feed signals, so that at least a portion of the frame 11 acts as a radiator of the antenna to transmit / receive radio frequency signals. A gap 42 may exist between this portion of the frame acting as the radiator and the middle frame 19, thereby ensuring that the antenna radiator has a good radiation environment, enabling the antenna to have good signal transmission capabilities.

[0200] The back cover 21 can be made of metal; it can also be made of non-conductive material, such as a glass back cover, a plastic back cover, or other non-metallic back cover; or it can be made of both conductive and non-conductive materials. In one embodiment, the back cover 21, which includes conductive material, can replace the middle frame 19 and form an integral part with the frame 11, providing support for the electronic components in the whole device.

[0201] It should be understood that insulating gaps may be present on the frame 11. For example, these insulating gaps may form open ends of the antenna radiator, thereby enabling the antenna radiator to function as a frame antenna. When the frame 11 is formed of a conductive material such as metal, the insulating gap can be understood as a gap in the frame 11 filled with a non-metallic material (insulating material), and this gap is visible on the outer surface of the frame. When the outer surface of the frame 11 is a non-conductive material, the insulating gap can be understood as a gap between conductive portions within the frame 11, which may be filled with a non-metallic material (insulating material), or it may be filled with air instead of a non-metallic material, and this gap is not visible on the outer surface of the frame.

[0202] In one embodiment, conductive portions in the mid-frame 19 and / or rear cover 21 can serve as a reference ground for the electronic device 10, wherein the frame 11, PCB 17, etc. of the electronic device can be grounded through electrical connection with the mid-frame.

[0203] The antenna of the electronic device 10 can also be disposed within the frame 11. When the frame 11 of the electronic device 10 is made of a non-conductive material, the antenna radiator can be located within the electronic device 10 and positioned along the frame 11. For example, the antenna radiator can be positioned close to the frame 11 to minimize the volume occupied by the antenna radiator and to be closer to the outside of the electronic device 10, thereby achieving better signal transmission performance. It should be noted that "positioning the antenna radiator close to the frame 11" means that the antenna radiator can be positioned flush against the frame 11 or close to the frame 11, for example, there can be a small gap between the antenna radiator and the frame 11.

[0204] The antenna of electronic device 10 can also be housed inside the casing, such as a bracket antenna, millimeter-wave antenna, etc. Figure 1 (Not shown in the image). The clearance of the antenna disposed within the housing can be obtained by a slot / aperture on any of the middle frame, and / or side frame, and / or back cover, and / or display screen, or by a non-conductive gap / aperture formed between any of them. The clearance setting of the antenna can ensure the radiation characteristics of the antenna. It should be understood that the clearance of the antenna can be a non-conductive area formed by any conductive components within the electronic device 10, through which the antenna radiates signals to the external space. In one embodiment, the antenna 40 can be in the form of an antenna based on a flexible printed circuit (FPC), an antenna based on laser-direct-structuring (LDS), or a microstrip disk antenna (MDA), etc. In one embodiment, the antenna can also be a transparent structure embedded inside the screen of the electronic device 10, making the antenna a transparent antenna unit embedded inside the screen of the electronic device 10.

[0205] Figure 1 The electronic device 10 is shown only schematically, and the actual shape, size, and construction of these components are not subject to change. Figure 1 limited.

[0206] It should be understood that in the embodiments of this application, the side where the display screen of the electronic device is located can be considered as the front, the side where the back cover is located as the back, and the side where the frame is located as the side.

[0207] It should be understood that, in the embodiments of this application, when a user holds (typically vertically and facing the screen) an electronic device, the orientation of the electronic device includes a top, bottom, left side, and right side.

[0208] First, by Figures 2 to 5 This application will cover four antenna modes. Among them, Figure 2 This is a schematic diagram of the common-mode structure of an antenna provided in this application and the corresponding current and electric field distribution. Figure 3 This is a schematic diagram of the differential mode structure of another antenna provided in this application and the corresponding current and electric field distribution. Figure 2 and Figure 3 The antenna radiator is open at both ends, and its common-mode and differential-mode modes can be referred to as line common-mode and line differential-mode, respectively. Figure 4 This is a schematic diagram of the common-mode structure of an antenna provided in this application and the corresponding distribution of current, electric field, and magnetic current. Figure 5 This is a schematic diagram of the differential mode structure of another antenna provided in this application and the corresponding distribution of current, electric field, and magnetic current. Figure 4 and Figure 5 The antenna radiator is grounded at both ends, and its common-mode and differential-mode modes can be referred to as slot common-mode and slot differential-mode, respectively.

[0209] It should be understood that the "common mode" or "CM mode" in this application includes line common mode and slot common mode, while the "differential mode" or "DM mode" in this application includes line differential mode and slot differential mode, which can be determined according to the antenna structure.

[0210] It should be understood that the "common-differential mode" or "CM-DM mode" in this application refers to the line common mode and line differential mode generated on the same radiator, or the slot common mode and slot differential mode generated on the same radiator, which can be determined according to the antenna structure.

[0211] 1. Common mode (CM) mode

[0212] Figure 2 Figure (a) shows that the radiator of antenna 40 is open at both ends and connected to a feed circuit (not shown) at the middle position 41. In one embodiment, the antenna 40 is fed in a symmetrical feed configuration. The feed circuit can be connected to the middle position 41 of antenna 40 via feed wire 42. It should be understood that symmetrical feed can be understood as one end of the feed circuit being connected to the radiator and the other end being grounded, wherein the connection point between the feed circuit and the radiator (feed point) is located at the center of the radiator, which may be, for example, the midpoint of the geometry, or the midpoint of the electrical length (or a certain area within a certain range near the aforementioned midpoint).

[0213] The middle position 41 of the antenna 40 may be, for example, the geometric center of the antenna, or the midpoint of the electrical length of the radiator, such as the connection point between the feed line 42 and the antenna 40, which covers the middle position 41.

[0214] Figure 2 (b) shows the current and electric field distribution of antenna 40. Figure 2 As shown in (b), the current exhibits an opposite distribution on both sides of the middle position 41, for example, a symmetrical distribution; the electric field exhibits a unidirectional distribution on both sides of the middle position 41. Figure 2 As shown in (b), the current at feeder line 42 exhibits a unidirectional distribution. Based on the unidirectional current distribution at feeder line 42, Figure 2 The type of feed shown in (a) can be called a line CM feed. This is based on the fact that the current is distributed in opposite directions on both sides of the connection between the radiator and the feed line 42. Figure 2 The antenna mode shown in (b) can be called the line CM mode (or simply CM mode; for example, for a line antenna, CM mode refers to the line CM mode). Figure 2 The current and electric field shown in (b) can be referred to as the current and electric field of the line CM mode, respectively.

[0215] The current is stronger at the middle position 41 of antenna 40 (the current is strongest near the middle position 41 of antenna 40), and weaker at both ends of antenna 40. Figure 2 As shown in (b) of the diagram. The electric field is weaker at the middle position 41 of the antenna 40 and stronger at both ends of the antenna 40.

[0216] 2. Differential mode (DM)

[0217] like Figure 3Image (a) shows that the two radiators of antenna 50 have open ends on both sides and are connected to a feed circuit at the middle position 51. In one embodiment, antenna 50 is fed using an anti-symmetrical feed. One end of the feed circuit is connected to one of the radiators via a feed wire 52, and the other end of the feed circuit is connected to the other radiator via a feed wire 52. The middle position 51 can be the geometric center of antenna 50, or the gap formed between the radiators.

[0218] It should be understood that the "center-antisymmetric feeding" mentioned in this application can be understood as the positive and negative poles of the feeding unit being connected to two connection points near the midpoint of the radiator. In one embodiment, the signal amplitudes output by the positive and negative poles of the feeding unit are the same, but the phases are opposite, for example, the phase difference is 180°±10°.

[0219] Figure 3 (b) shows the current and electric field distribution of antenna 50. Figure 3 As shown in (b), the current in the antenna 50 is distributed in the same direction on both sides of the middle position 51, for example, an antisymmetric distribution; the electric field is distributed in opposite directions on both sides of the middle position 51. Figure 3 As shown in (b), the current at feeder line 52 exhibits a reverse distribution. Based on the reverse current distribution at feeder line 52, Figure 3 The type of feed shown in (a) can be called a line DM feed. This is based on the fact that the current is distributed in the same direction on both sides of the connection between the radiator and the feed line 52. Figure 3 The antenna mode shown in (b) can be called the line DM mode (or simply DM mode; for example, for a line antenna, DM mode refers to the line DM mode). Figure 3 The current and electric field shown in (b) can be referred to as the current and electric field in the line DM mode, respectively.

[0220] The current is stronger at the middle position 51 of antenna 50 (the current is strongest near the middle position 51 of antenna 50), and weaker at both ends of antenna 50. Figure 3 As shown in (b) of the diagram. The electric field is weaker at the middle position 51 of the antenna 50 and stronger at both ends of the linear antenna 50.

[0221] It should be understood that an antenna radiator can be considered as a metal structural component that generates radiation, and its quantity can be one, such as... Figure 2 As shown, or, it can be two items, such as Figure 3 As shown, adjustments can be made according to actual design or production needs. For example, for the line CM mode, it can also be as follows: Figure 3The diagram illustrates the use of two radiators, positioned opposite each other with a gap between them. Symmetrical feeding is employed at the two ends closest to each other; for example, feeding the same feed source signal into both ends of the two radiators can achieve the same result as... Figure 2 The antenna structure shown achieves a similar effect. Correspondingly, for line DM mode, it can also be done as follows... Figure 2 The diagram illustrates a radiator with two feed points positioned at its center, using an anti-symmetrical feeding method. For example, by feeding signals of the same amplitude but opposite phase to the two symmetrical feed points on the radiator, a signal similar to [the one described above] can be obtained. Figure 3 The antenna structure shown has a similar effect.

[0222] 3. Line CM-DM mode

[0223] The above Figure 2 and Figure 3 The diagrams show the line CM mode and line DM mode generated by different feeding methods when both ends of the radiator are open.

[0224] When the antenna uses asymmetrical feeding (the feed point is off-center from the radiator, including side-feed or offset feeding), or when the grounding point of the radiator (coupled to the ground) is asymmetrical (off-center from the radiator), the antenna can simultaneously generate a first resonance and a second resonance, corresponding to the line CM mode and the line DM mode, respectively. For example, the first resonance corresponds to the line CM mode, with current and electric field distributions as follows: Figure 2 As shown in (b) above. The second resonance corresponds to the line DM mode, and the current and electric field distribution is as follows. Figure 3 As shown in (b) of the diagram.

[0225] 4. Slot CM mode

[0226] Figure 4 The radiator of the antenna 60 shown in (a) has a slot or slit 61, or the radiator of the antenna 60 and ground (e.g., a floor, which may be a PCB) enclose the slot or slit 61. The slot 61 can be formed by slotting in the floor. An opening 62 is provided on one side of the slot 61, and the opening 62 may be specifically located at the middle of that side. The middle of this side of the slot 61 may be, for example, the geometric midpoint of the antenna 60, or the midpoint of the electrical length of the radiator, for example, the area where the opening 62 is located on the radiator covers the middle of this side. A feed circuit can be connected to the opening 62, and an antisymmetric feed is used. It should be understood that antisymmetric feed can be understood as the positive and negative poles of the feed circuit being connected to the two ends of the radiator, respectively. The signal amplitudes output by the positive and negative poles of the feed circuit are the same, but the phases are opposite, for example, a phase difference of 180° ± 10°.

[0227] Figure 4(b) shows the current, electric field, and magnetic current distribution of antenna 60. Figure 4 As shown in (b), the current is unidirectionally distributed around slot 61 on the conductors (such as the floor and / or radiator 60) surrounding slot 61, the electric field is oppositely distributed on both sides of the middle position of slot 61, and the magnetic current is oppositely distributed on both sides of the middle position of slot 61. Figure 4 As shown in (b), the electric field at opening 62 (e.g., the feed point) is in the same direction, and the magnetic current at opening 62 (e.g., the feed point) is also in the same direction. Based on the fact that the magnetic current at opening 62 (the feed point) is in the same direction, Figure 4 The type of feed shown in (a) can be called a slot CM feed. This is based on the current exhibiting a unidirectional distribution (e.g., antisymmetric distribution) on the radiators on both sides of opening 62, or on the current exhibiting a unidirectional distribution around slot 61 on the conductors surrounding slot 61. Figure 4 The antenna mode shown in (b) can be called slot CM mode (or simply CM mode; for example, for slot antennas, CM mode refers to slot CM mode). Figure 4 The electric field, current, and magnetic current distribution shown in (b) can be referred to as the electric field, current, and magnetic current of the slot CM mode.

[0228] The magnetic field is weaker at the middle of antenna 60 and stronger at both ends. The electric field is stronger at the middle of antenna 60 (the largest electric field is located near the middle of antenna 60) and weaker at both ends. Figure 4 As shown in (b) of the diagram.

[0229] 5. Slot DM Mode

[0230] like Figure 5 The antenna 70 shown in (a) has a slot or slit 72 in its radiator, or the slot or slit 72 may be formed by the radiator of the antenna 70 and ground (e.g., a floor, which may be a PCB). The slot 72 can be formed by slotting in the floor. A feed circuit is connected at the middle position 71 of the slot 72, and symmetrical feeding is used. It should be understood that symmetrical feeding can be understood as one end of the feed circuit being connected to the radiator and the other end being grounded, wherein the connection point between the feed circuit and the radiator (feed point) is located at the center of the radiator, which may be, for example, the midpoint of the geometry, or the midpoint of the electrical length (or a certain area near the aforementioned midpoint). The positive terminal of the feed circuit is connected at the middle position of one side of the slot 72, and the negative terminal of the feed circuit is connected at the middle position of the other side of the slot 72. The middle position of the side of slot 72 can be, for example, the middle position of slot antenna 60 / the middle position of ground, such as the geometric midpoint of slot antenna, or the midpoint of the electrical length of radiator, such as the middle position 51 of the side covered by the connection between the feed circuit and the radiator.

[0231] Figure 5(b) shows the current, electric field, and magnetic current distribution of antenna 70. Figure 5 As shown in (b), on the conductors (such as the floor and / or radiator 60) surrounding slot 72, the current is distributed around slot 72, and the current is distributed in opposite directions on both sides of the middle position 71. The electric field is distributed in the same direction on both sides of the middle position 71, and the magnetic current is distributed in the same direction on both sides of the middle position 71. The magnetic current at the feed circuit is distributed in opposite directions (not shown). Based on the opposite magnetic current distribution at the feed circuit, Figure 5 The type of feed shown in (a) can be called a slot DM feed. This is based on the current exhibiting an opposite distribution (e.g., symmetrical distribution) on both sides of the connection between the feed circuit and the radiator, or based on the current exhibiting an opposite distribution (e.g., symmetrical distribution) around slot 71. Figure 5 The antenna mode shown in (b) can be called slot DM mode (or simply DM mode; for example, for slot antennas, DM mode refers to slot DM mode). Figure 5 The electric field, current, and magnetic current distribution shown in (b) can be referred to as the electric field, current, and magnetic current of the slot DM mode.

[0232] The current is weaker at the middle of antenna 70 and stronger at both ends. The electric field is stronger at the middle of antenna 70 (the largest electric field is located near the middle of antenna 60) and weaker at both ends of slot antenna 70. Figure 5 As shown in (b) of the diagram.

[0233] It should be understood that the radiator of an antenna can be understood as a metallic structural component that generates radiation (e.g., including a portion of the floor), and may include openings, such as... Figure 4 As shown, or it could be a complete ring, such as Figure 5 As shown, adjustments can be made according to actual design or production needs. For example, for the CM (Channel Module) pattern, it can also be adjusted as follows: Figure 5 The diagram shows a complete annular radiator. Two feed points are positioned in the middle of the radiator on one side of slot 61, using an anti-symmetrical feeding method. For example, signals with the same amplitude but opposite phase can be fed into both ends of the original opening position to obtain signals similar to those shown. Figure 4 The antenna structure shown achieves a similar effect. Correspondingly, for the slot DM mode, it can also be done as follows... Figure 4 The diagram shows a radiator with an opening, and symmetrical feeding at both ends of the opening. For example, the same feed source signal can be fed into both ends of the radiator on both sides of the opening to obtain the same signal. Figure 5 The antenna structure shown has a similar effect.

[0234] 6. Slotted CM-DM mode.

[0235] The above Figure 4 and Figure 5The diagrams show how different power supply methods are used to generate slot CM mode and slot DM mode for the slot structure.

[0236] When the antenna is fed asymmetrically (the feed point deviates from the center position, including side-feed or offset feed), or the opening on one side of the slot is asymmetrical (the opening deviates from the center position on that side), the antenna can simultaneously generate a first resonance and a second resonance, corresponding to the slot CM mode and slot DM mode, respectively. For example, the first resonance corresponds to the slot CM mode, and the current, electric field, and magnetic current distribution are as follows: Figure 4 As shown in (b) above. The second resonance corresponds to the slot DM mode, and the current, electric field, and magnetic current distributions are as follows. Figure 5 As shown in (b) of the diagram.

[0237] Since the above antenna structures can generate two operating modes (the electric field is orthogonal (the electric field product in the far field is zero, which is an integral orthogonal distribution)) with symmetrical or antisymmetric electric field distribution, the isolation between the two operating modes of this antenna structure is good, and it can be applied to multi-input multi-output (MIMO) antenna systems in electronic devices.

[0238] Meanwhile, when the two antenna structures operate in two different modes (the electric field is symmetrically distributed or antisymmetrically distributed) with orthogonal electric fields (the electric field product in the far field is zero (integral orthogonal)), the two antenna structures also have good isolation and can be used as sub-units in MIMO antenna systems in electronic devices.

[0239] It should be understood that the two antenna structures can be interpreted as antenna structures fed with signals by a first feed circuit and a second feed circuit, respectively. The first feed circuit and the second feed circuit are different. In electronic devices, the first feed circuit and the second feed circuit can be different radio frequency channels in a radio frequency IC (RF IC).

[0240] Figure 6 This is a schematic diagram of another electronic device 10 provided in the embodiments of this application.

[0241] like Figure 6 As shown, electronic device 10 may include antenna 100.

[0242] The conductive frame 11 of the electronic device 10 may include a first position 101 and a second position 102. The frame 11 is coupled to the ground at the first position 101 and the second position 102, and a gap is formed between the first position and the second position. The radiator 105 of the antenna 100 is the conductive portion between the first position 101 and the second position 102.

[0243] Antenna 100 may further include a feed circuit and electronic components. Radiator 105 may include a first connection point and a second connection point. The first connection point is located between a first position 101 and the slot, and the second connection point is located between a second position 102 and the slot. The feed circuit is coupled to the first connection point. A first end of the electronic component is coupled to the second connection point, and a second end is coupled to the ground.

[0244] When an electrical signal is fed into the feeding circuit, the antenna 100 can operate in the aforementioned slot CM-DM mode. Electronic components can be used to bring the resonances generated by the slot CM mode and slot DM mode closer together, forming a single resonant frequency band to extend the operating bandwidth of the antenna 100. In one embodiment, electronic components can shift the frequency of the resonance generated by the slot DM mode to a lower frequency.

[0245] Figure 7 and Figure 8 yes Figure 6 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 7 yes Figure 6 Simulation results of the S-parameters of the antenna 100 in the electronic device 10 shown. Figure 8 yes Figure 6 Simulation results of the system efficiency and radiation efficiency of antenna 100 in the electronic device 10 shown.

[0246] like Figure 7 As shown, antenna 100 can resonate around 1.7 GHz and around 2 GHz. The resonance generated around 1.7 GHz can correspond to slot CM mode, and the resonance generated around 2 GHz can correspond to slot DM mode.

[0247] like Figure 8 As shown, when antenna 100 operates in slot CM mode, there are multiple current modes on the ground, while slot DM mode is mainly radiated by the radiator. Therefore, the radiation efficiency of slot CM mode is higher than that of slot DM mode. When the resonance generated by slot CM mode and slot DM mode is used to extend the operating bandwidth of antenna 100, due to the lower radiation efficiency of slot DM mode, a pit will be generated near the resonance generated by slot DM mode, resulting in a narrower bandwidth of system efficiency (taking system efficiency > -2dB as an example), only 400MHz.

[0248] This application provides an antenna structure and its electronic device. The antenna structure utilizes the conductive portion of the frame as a radiator. An electrical signal is fed into the radiator via indirect coupling. The feed element and the radiator are used to generate a first resonance and a second resonance. The two resonances can be combined to form a resonant frequency band to extend the bandwidth, and within this resonant frequency band, good radiation efficiency and system efficiency are achieved.

[0249] Figure 9This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0250] like Figure 9 As shown, the electronic device 10 includes a frame 11, an antenna 200, and a floor 300.

[0251] At least a portion of the frame 11 is spaced apart from the floor 300. The frame 11 includes a first position 201 and a second position 202. The frame 11 is coupled to the floor 300 at the first position 201 and the second position 202. A first gap is formed between the frame 11 and the second position 201. In one embodiment, the first gap is located in the central region between the first position 201 and the second position 202.

[0252] It should be understood that the central region can be understood as the area within 5mm of the center, where the physical length between the center and the first position 201 is the same as the physical length between the center and the second position 202, or the electrical length between the center and the first position 201 is the same as the electrical length between the center and the second position 202. For the sake of brevity, the central region described in the embodiments of this application can be understood accordingly.

[0253] Meanwhile, for the sake of brevity, the coupling connections in the embodiments of this application are all described using direct coupling (electrical connection) as an example. In actual production or design, indirect coupling can also be used.

[0254] In one embodiment, the first position 201 and the second position 202 are coupled to the floor 300 to ground the radiator. At the first position 201 and the second position 202, the frame 11 can be directly electrically connected to the floor 300 via a spring clip, an inductor, or a structural member of the mid-frame (e.g., a connecting rib). Electrical connection to the floor 300 via a structural member of the mid-frame can be understood as at least a portion of the frame 11 being an integral structure with the floor 300.

[0255] In one embodiment, at the first position 201 and the second position 202, the grounding element (e.g., spring clip, connecting rod) can be electrically connected to the floor 300. The width of the grounding element connected to the frame 11 is greater than or equal to 1 mm and less than or equal to 10 mm.

[0256] In one embodiment, the frame 11 has a first gap between the first position 201 and the second position 202, forming an opening / open end on the radiator. Either side of the first gap can be spaced apart from the floor 300, or can be capacitively coupled to the floor 300.

[0257] Antenna 200 includes a radiator 210 and a feed element 221. The radiator 210 and the feed element 221 are spaced apart and at least partially overlap along a first direction perpendicular to the extension direction of the radiator 210 (e.g., the y-direction). In one embodiment, the extension direction of the radiator 210 is the same as the extension direction of the feed element 221. The radiator 210 is the conductive portion of the frame 11 between a first position 201 and a second position 202. A first end and a second end of the radiator 210 are grounded, corresponding to the first position 201 and the second position 202 of the frame 11, respectively. The first end and the second end of the feed element 221 are open ends.

[0258] The fact that the extension direction of the radiator 210 is in the same direction as the extension direction of the feeder 221 can be understood as the angle between the extension direction of the radiator 210 and the extension direction of the feeder 221 being less than or equal to a first threshold, for example, less than or equal to 10°.

[0259] It should be understood that, in the embodiments of this application, the open terminal can be understood as being spaced apart from the ground 300 or coupled to the ground 300 through a capacitor. In the embodiments of this application, the ground terminal can be understood as being directly electrically connected to the ground 300 or coupled to the ground 300 through an inductor. The capacitors or inductors mentioned in the embodiments of this application can all be understood as capacitive or inductive electronic components, and for the sake of brevity, they will not be described in detail. Wherein, being directly electrically connected to the ground 300 can be understood as only having connecting parts (e.g., springs, metal connecting rods, etc.) between it and the ground 300, without having electronic components (e.g., capacitors, inductors, switches, etc.). For example, the grounding structure can be milled out on the electronic device by a process.

[0260] In the above embodiments, both the open terminal and the ground terminal can be coupled to the ground plane 300 via electronic components. The difference lies in that coupling to the ground plane 300 via electronic components does not change the original electric field or current characteristics. At the open terminal, coupling to the ground plane 300 via electronic components still results in a strong electric field near the open terminal, and correspondingly, a weaker current in that region. At the ground terminal, coupling to the ground plane 300 via electronic components still results in a strong current near the ground terminal, and correspondingly, a weaker electric field in that region.

[0261] It should be understood that the extension direction of the radiator 210 can be understood as the extension direction of the frame where the first position 201 or the second position 202 is located. For example, the first position 201 and the second position 202 are both located on the first side of the frame, and the extension direction of the radiator 210 is the extension direction of the first side (e.g., the x-direction). Alternatively, the first position 201 and the second position 202 are located on the first and second sides of the frame that intersect at an angle, respectively, and the extension direction of the radiator 210 includes the extension direction of the first side (e.g., the x-direction) and the extension direction of the second side (e.g., the y-direction). The radiator 210 and the feeder 221 overlap at least partially in the direction perpendicular to either of the extension directions of the radiator 210.

[0262] Meanwhile, the radiator 210 and the feeder 221 are spaced apart, which can be understood as the radiator 210 and the feeder 221 not being directly connected and forming a gap. In the embodiments of this application, the spaced arrangement can be understood accordingly. The radiator 210 and the feeder 221 are coupled through this gap.

[0263] Antenna 200 also includes a feed circuit 231, and a feed element 221 includes a feed point 211, with the feed circuit 231 coupled to the feed point 211. In one embodiment, the distance between the feed point 211 and the end of the first end of the feed element 221 is less than one-third of the length of the feed element 221. It should be understood that the radiation characteristics of antenna 200, such as the resonant frequency, can be adjusted by adjusting the position of the feed point 211.

[0264] The power supply element 221 and the radiator 210 are used to generate a first resonance and a second resonance. In one embodiment, the first resonance and the second resonance are used to jointly support a first operating frequency band of the electronic device 10. The power supply circuit 231 can be used to feed in electrical signals of the first operating frequency band.

[0265] The first operating frequency band of the electronic device 10 includes a frequency range, such as the low band (LB) (698MHz-960MHz), the middle band (MB) (1710MHz-2170MHz), or the high band (HB) (2300MHz-2690MHz) in a cellular network. Taking the operating frequency band of the electronic device 10 as LB (698MHz-960MHz) as an example, this operating frequency band may include multiple communication frequency bands belonging to this frequency range, such as B5, B8, etc., which can all be understood accordingly in the embodiments of this application.

[0266] It should be understood that, in the technical solutions provided in this application embodiment, the radiator 210 can form a radiator structure conforming to a slot antenna. When an electrical signal is fed into the feed circuit 231, the antenna 200 can generate the aforementioned first resonance and second resonance through the radiator 210 and the feed element 221. In the electronic device 10, compared to the radiator 210 (which is the conductive portion in the frame 11), the feed element 221 has a poorer radiation environment (e.g., poorer clearance, closer proximity to adjacent metal components). However, the feed element 221 can generate a new current path for the radiator 210, thereby generating a new resonance (e.g., a second resonance) to extend the operating bandwidth of the antenna 200.

[0267] Meanwhile, since the first and second ends of the radiator 210 are grounded, the region near the first and second ends of the radiator 210 has a strong current and a weak electric field. Conversely, the first and second ends of the feed element 221 are open, and the region near the first and second ends of the feed element 221 has a weak current and a strong electric field. The proximity of the region with a weaker electric field (stronger magnetic field) of the radiator 210 to the region with a stronger electric field (stronger magnetic field) of the feed element 221 allows for a more balanced first and second resonance. This prevents a dip in radiation efficiency in the first operating frequency band supported by both the first and second resonances, thereby improving the radiation characteristics of the antenna 200 and giving the electronic device 10 better communication performance.

[0268] In one embodiment, the first and second resonators can be close to each other so that they jointly support an operating frequency band of the electronic device 10. In one embodiment, the frequency difference between the first and second resonators is in the range of 5% to 20% (greater than or equal to 5% and less than or equal to 20%) of the low-frequency or high-frequency resonant point. In one embodiment, in the low-frequency band (less than or equal to 1 GHz, e.g., 698 MHz-960 MHz), the frequency difference between the resonant point frequency of the first resonator and / or the resonant point frequency of the second resonator is greater than or equal to 50 MHz and less than or equal to 160 MHz. In the mid-frequency band (in the range of 1 GHz-2 GHz, e.g., 1710 MHz-2170 MHz), the frequency difference between the resonant point frequency of the first resonator and / or the resonant point frequency of the second resonator is greater than or equal to 120 MHz and less than or equal to 300 MHz. In the high-frequency band (within the range of 2GHz-3GHz, for example, 2300MHz-2690MHz), the frequency difference between the resonant frequency of the first resonance and / or the resonant frequency of the second resonance is greater than or equal to 160MHz and less than or equal to 500MHz.

[0269] In one embodiment, at the resonant point of the first resonance, the currents on the radiators 210 on both sides of the first gap are in the same direction, and the radiators 210 on both sides of the first gap each have currents in the same direction (or, there are no points on the radiators where the currents are reversed). At the resonant point of the second resonance, the currents on the radiators 210 on both sides of the first gap are in the same direction, and the radiators 210 on both sides of the first gap each have currents in the same direction (or, there are no points on the radiators where the currents are reversed).

[0270] It should be understood that the aforementioned "current in the same direction" can be interpreted as the current flowing from one end to the other. For example, the current on the radiator 210 flows from the first position 201 (first end) to the second position 202 (second end), or from the second position 202 (second end) to the first position 201 (first end). Alternatively, the aforementioned "current in the same direction" can be understood as the currents being distributed in the same direction along the path of current flow, with no points where the currents reverse. For the sake of brevity, the "current in the same direction" mentioned in the embodiments of this application can be understood accordingly.

[0271] It should be understood that both the first and second resonances can be considered as generated by the slot CM mode. Since the slot CM mode has high radiation efficiency and system efficiency, the antenna has good radiation efficiency and system efficiency within the operating frequency band formed by the first and second resonances.

[0272] In one embodiment, at the resonant point of the first resonance, the current distributed on the feeder 221 is a current in the same direction. At the resonant point of the second resonance, the current distributed on the feeder 221 is a current in the same direction.

[0273] It should be understood that the current on the feeder 221 can be generated by the line DM mode. The radiator 210 generates a co-current through co-current coupling on the feeder 221, thereby generating a second resonance.

[0274] In one embodiment, the width of the first gap is greater than or equal to 0.1 mm and less than or equal to 2 mm. It should be understood that the width of the gaps opened on the frame in the embodiments of this application can all be within the above range, and for the sake of brevity, they will not be described in detail.

[0275] In one embodiment, the ratio of the length of the overlapping portion of the projection of the power supply element 221 on the frame 11 and the radiator 210 to the length of the radiator 210 is greater than or equal to 25%. In another embodiment, the ratio of the length of the overlapping portion of the projection of the power supply element 221 on the frame 11 and the radiator 210 to the length of the radiator 210 is greater than or equal to 50%.

[0276] In one embodiment, the ratio of the length of the overlapping portion of the feeder 221 and the radiator 210 along the first direction (the overlap between the projection of the feeder 221 on the frame 11 and the radiator 210) to the length of the feeder 221 is greater than or equal to 50%. In another embodiment, the ratio of the length of the overlapping portion of the feeder 221 and the radiator 210 along the first direction (the overlap between the projection of the feeder 221 on the frame 11 and the radiator 210) to the length of the feeder 221 is greater than or equal to 75%.

[0277] It should be understood that when the ratio of the projected length to the length of the feed element 221 (or the ratio of the projected length to the length of the radiator 210) is within the aforementioned range, the radiator 210 can be better excited, and the antenna 200 has better radiation characteristics. When the first position 201 and the second position 202 are respectively located on the first and second sides of the frame that intersect at an angle, the extension direction of the radiator 210 includes the extension direction of the first side (e.g., the x-direction) and the extension direction of the second side (e.g., the y-direction). The length of the overlapping portion can be understood as the sum of the length of the overlapping portion in the extension direction of the first side (e.g., the x-direction) and the length of the overlapping portion in the extension direction of the second side (e.g., the y-direction).

[0278] In one embodiment, the lengths of the radiators on both sides of the first gap are approximately the same, and the ratio of the lengths of the radiators on both sides of the first gap (the length of the conductor portion of the frame between the first position 201 and the first gap, and the length of the conductor portion of the frame between the second position 202 and the first gap) is greater than or equal to 0.7 and less than or equal to 1.3.

[0279] It should be understood that when the lengths of the radiators on both sides of the first slot are approximately the same, the structure of the antenna 200 is more symmetrical. With the increase of the symmetry of the antenna 200, the slot CM mode can be better excited, so that the antenna 200 can have better radiation characteristics (e.g., bandwidth, radiation efficiency, etc.) at the first and second resonances.

[0280] In one embodiment, the distance between the projection of the first gap onto the power supply element 221 and the center of the power supply element 221 is less than or equal to one-quarter of the length of the power supply element 221. In another embodiment, the projection of the first gap onto the power supply element 221 is in the central region of the power supply element 221.

[0281] It should be understood that when the feed element 221 is approximately aligned with the radiator 210, the structure of the antenna 200 is more symmetrical. With the increase in the symmetry of the antenna 200, the slot CM mode can be better excited, thereby enabling the antenna 200 to have better radiation characteristics (e.g., bandwidth, radiation efficiency, etc.) at the first and second resonances. The alignment of the feed element 221 with the radiator 210 can be understood as the first radiator 210 being symmetrical along the virtual axis of the feed element 221, with the feed elements 221 on both sides of the virtual axis having the same length.

[0282] Meanwhile, the radiator 210 has a weaker current and a stronger electric field in the region near the first gap. The feeder 221 has a weaker electric field and a stronger current in the region near its center. The proximity of the region with a stronger electric field (stronger magnetic field) of the radiator 210 (the first gap) and the region with a weaker electric field (stronger magnetic field) of the feeder 221 (the midpoint) allows for a more balanced first and second resonance.

[0283] In one embodiment, the feed element 221 includes a connection point 241. The antenna 200 may also include an electronic component 242. A first end of the electronic component 242 is coupled to the connection point 241, and a second end of the electronic component 242 is coupled to the ground plane 300. In one embodiment, the distance between the connection point 241 and the second end of the feed element 221 is less than one-third of the length of the feed element 221.

[0284] It should be understood that electronic component 242 can be used to increase the symmetry of antenna 200. With increased symmetry, the slot CM mode can be better excited, thereby allowing antenna 200 to have better radiation characteristics (e.g., bandwidth, radiation efficiency, etc.) at the first and second resonances. In one embodiment, feed point 211 and connection point 241 are symmetrical along a virtual axis of feed element 221, with the length of feed element 221 being the same on both sides of the virtual axis. In one embodiment, the electronic component can be a capacitor.

[0285] In one embodiment, the projection of the feed element 221 onto the frame 11 completely overlaps with the radiator 210. In one embodiment, the ratio of the lengths of the radiators on both sides of the first gap is greater than or equal to 0.9 and less than or equal to 1.1. In one embodiment, the two ends of the radiator 210 are coupled to the floor 300 in the same way (e.g., the frame 11 is coupled to the floor 300 via inductance at both the first position 201 and the second position 202, or via connecting rods). In one embodiment, the projection of the first gap onto the feed element 221 coincides with the center of the feed element 221.

[0286] In one embodiment, the projection of the power supply element 221 onto the frame 11 is located between the first position 201 and the second position 202.

[0287] It should be understood that the increased symmetry of antenna 200 can better excite the slot CM mode, thereby enabling antenna 200 to have better radiation characteristics (e.g., bandwidth, radiation efficiency, etc.) at the first and second resonances.

[0288] In one embodiment, the second end of the power supply element 221 is an open end.

[0289] In one embodiment, when electronic component 242 is located at the second end of power supply component 221, connection point 241 and ground plane 300 cannot be equivalent to a short circuit (connection point 241 is coupled to ground plane). Therefore, when electronic component 242 is a capacitor, its capacitance value is less than a first threshold. When the frequency of the electrical signal fed into power supply circuit 231 (e.g., the center frequency of the operating frequency band) is less than or equal to 1 GHz, the first threshold is 10 pF. When the frequency of the electrical signal fed into power supply circuit 231 is greater than 1 GHz and less than or equal to 2 GHz, the first threshold is 5 pF. When the frequency of the electrical signal fed into power supply circuit 231 is greater than 2 GHz and less than or equal to 3 GHz, the first threshold is 3 pF. When the frequency of the electrical signal fed into power supply circuit 231 is greater than 3 GHz, the first threshold is 2 pF.

[0290] In one embodiment, both ends of the feed element 221 are open ends, and the electrical length of the radiator 210 is the same as that of the feed element 221, which is half of the first wavelength. The first wavelength is the wavelength corresponding to the center frequency between the resonant point of the first resonance and the resonant point of the second resonance.

[0291] In one embodiment, the electrical length of the radiator 210 is approximately the same as the electrical length of the feeder 221. In another embodiment, the physical length of the radiator 210 is approximately the same as the physical length of the feeder 221. Since the electronic components coupled to the feeder 221 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L2 of the feeder 221 satisfy: L1×50%≤L2≤L1. In another embodiment, the physical length L1 of the radiator 210 can be less than or equal to the physical length L2 of the feeder 221, satisfying: L1≤L2≤L1×150%.

[0292] In one embodiment, the physical length L1 of the radiator 210 can be understood as the length of the conductive portion of the frame between the first position 201 and the second position 202, for example, the sum of the physical lengths of the radiators 210 on both sides of the first gap.

[0293] In one embodiment, the distance D between the power supply element 221 and the radiator 210 is less than or equal to 5 mm to ensure good coupling characteristics between them. In another embodiment, the distance D between the power supply element 221 and the radiator 210 is less than or equal to 2 mm.

[0294] It should be understood that the distance D between the feeder 221 and the radiator 210 can be understood as the minimum distance between a point on the feeder 221 and a point on the radiator 210.

[0295] In one embodiment, the electronic device 10 may further include a bracket 140. For example... Figure 10 The diagram shows a partial cross-sectional view of the electronic device along the first direction. For the sake of brevity, only the cross-section is shown to illustrate the antenna structure and the structural relationship between the bracket 140, the back cover 21, and the PCB 17.

[0296] In one embodiment, the power supply component 221 may be disposed on the surface of the bracket 140, and at least a portion of the bracket 140 may be disposed between the PCB 17 and the back cover 21 to support the power supply component 221. The metal layer in the PCB 17 may serve as the floor 300 in this embodiment, or the floor may be the mid-frame of the electronic device or other metal layers.

[0297] In one embodiment, the power supply element 221 on the bracket 140 may be located above the PCB 17. For example, the projection of the power supply element 221 on the PCB 17 may completely overlap with the PCB 17. In one embodiment, other electronic components may also be disposed between the bracket 140 and the PCB 17. To avoid mutual interference between the electronic components and the power supply element 221, the electronic components may be disposed within a metal shield. In one embodiment, the power supply element 221 on the bracket 140 may be located at the edge of the PCB 17. For example, the projection of the power supply element 221 on the PCB 17 may partially overlap with the conductive parts on the PCB 17; or, for example, the projection of the power supply element 221 on the PCB 17 may coincide with the outer edge of the conductive parts on the PCB 17 or be within 10 mm inside the outer edge. In one embodiment, the power supply element 221 on the bracket 140 may be located above a cutout area (e.g., a non-conductive portion) of the PCB 17 or above the gap between the PCB 17 and the frame. For example, the projection of the power supply element 221 on the PCB 17 may not overlap with the PCB 17.

[0298] In one embodiment, the distance H1 between the bracket 140 and the PCB 17 can be greater than or equal to 0.1 mm and less than or equal to 3 mm. In another embodiment, the distance H2 between the bracket 140 and the back cover 21 can be greater than or equal to 0.1 mm and less than or equal to 1 mm.

[0299] In one embodiment, the power supply component 221 may be disposed on the surface of the rear cover 21 (e.g., the surface facing the PCB 17). In another embodiment, the power supply component 221 may also be disposed on the surface of the PCB 17. The embodiments of this application do not limit the placement of the power supply component 221.

[0300] It should be understood that, for the sake of brevity, in Figure 9 , Figure 10 In the illustrated technical solution, the conductive portion of the frame 11 is used as the radiator 210 and the power supply component 221 is a non-frame structure (e.g., disposed on a bracket, PCB, or back cover). In actual production or design, the relative positions of the radiator 210 and the power supply component 221 can be interchanged. For example, the conductive portion of the frame 11 can be used as the power supply component 221 and the radiator 210 can be a non-frame structure (e.g., disposed on a bracket, PCB, or back cover).

[0301] It should be understood that, for the sake of brevity, this embodiment of the application only takes the example of the power supply component 221 being located on the floor 300 (the power supply component 221 and the floor 300 completely overlap along the z direction). In actual production or design, the power supply component 221 and the floor 300 may partially overlap along the z direction, or the power supply component 221 and the floor 300 may not overlap along the z direction. This embodiment of the application does not impose any restrictions on this.

[0302] In the embodiments of this application, both the feed element 221 and the radiator 210 participate in the antenna's radiation mode as radiators.

[0303] In one embodiment, the power supply element 221 is strip-shaped. "Strip-shaped" can be understood as having a length much greater than its width, for example, a length greater than three times, or six times, its width. In one embodiment, the smallest dimension of the power supply element 221 is its thickness; for example, when the power supply element 221 can be disposed on the surface of the bracket 140, the dimension in the direction perpendicular to the surface of the bracket 140 is the thickness. The dimensions of the power supply element 221 other than its thickness can be understood as its length and width.

[0304] In one embodiment, the width of the power supply element 221 may be less than or equal to 3 mm. In another embodiment, the width of the power supply element 221 may be less than or equal to 2 mm.

[0305] Figure 11 and Figure 12 yes Figure 9 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 11 yes Figure 9 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 12 yes Figure 9 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0306] It should be understood that in the above simulation results, only the following parameters are used as examples for illustration: the distance between the first gap and the first position is 14mm, the distance between the first gap and the second position is 12mm, the distance between the power supply component and the radiator is 1.8mm, the distance between the bracket and the PCB is 0.9mm, the width of the power supply component is 1.5mm, the length of the power supply component is 23mm, and the capacitance value of the electronic component is 1pF.

[0307] like Figure 11 As shown, antenna 200 can resonate around 1.87 GHz, 2.23 GHz, and 3.19 GHz, but the resonance excitation around 3.19 GHz is weaker. The resonance around 1.87 GHz corresponds to the first resonance in the above embodiment, and the resonance around 2.23 GHz corresponds to the second resonance in the above embodiment. The resonance around 3.19 GHz corresponds to the resonance generated by the slot DM mode.

[0308] It should be understood that, for the sake of brevity, this explanation only uses the example of the resonant frequency of the first resonance being lower than that of the second resonance. In actual production, the resonant frequency of the first resonance can also be higher than that of the second resonance.

[0309] like Figure 12 As shown, both the first and second resonances can be generated by the slot CM mode. Since the slot CM mode has high radiation and system efficiency, the antenna will not produce a crater within the operating frequency band where the first and second resonances form, thus exhibiting good radiation and system efficiency. Taking a system efficiency > -2dB as an example, the system efficiency bandwidth of antenna 200 is approximately 530MHz.

[0310] Figures 13 to 18 yes Figure 9 A schematic diagram showing the current and electric field distribution of the antenna 200 in the electronic device 10. Wherein, Figure 13 yes Figure 9 The diagram shows the current distribution of the antenna at the first resonance point (1.87 GHz). Figure 14 yes Figure 9 The diagram shows the current distribution of the antenna at the second resonance point (2.23 GHz). Figure 15 yes Figure 9 The diagram shows the current distribution of the antenna at 3.19 GHz. Figure 16 yes Figure 9 The diagram shows the electric field distribution of the antenna at the first resonance point (1.87 GHz). Figure 17 yes Figure 9 The diagram shows the electric field distribution of the antenna at the resonant point (2.23 GHz) of the second resonance. Figure 18 yes Figure 9 The diagram shows the electric field distribution of the antenna at 3.19 GHz.

[0311] like Figure 13 As shown, the currents on the radiators on both sides of the first slot are in the same direction, and the currents on the feeder are also in the same direction. The current distribution on the radiators conforms to the current characteristics of the slot CM mode. The current distribution on the feeder conforms to the current characteristics of the line DM mode.

[0312] like Figure 14 As shown, the currents on the radiators on both sides of the first slot are in the same direction, and the currents on the feeder are also in the same direction. The current distribution on the radiators conforms to the current characteristics of the slot CM mode. The current distribution on the feeder conforms to the current characteristics of the line DM mode.

[0313] like Figure 15 As shown, the currents on the radiators on both sides of the first slot are in opposite directions, and the currents on the feeders on both sides of the center are in opposite directions. The current distribution on the radiators conforms to the current characteristics of the slot DM mode. The current distribution on the feeders conforms to the current characteristics of the line CM mode.

[0314] like Figure 16 As shown, the electric field generated by the antenna is opposite on both sides of the first slot (pointing to the positive and negative z-axis respectively), which conforms to the electric field characteristics of the slot CM mode.

[0315] like Figure 17 As shown, the electric field generated by the antenna is opposite on both sides of the first slot (pointing to the positive and negative z-axis respectively), which conforms to the electric field characteristics of the slot CM mode.

[0316] like Figure 18 As shown, the electric field generated by the antenna is in the same direction on both sides of the first slot (both pointing towards the positive z-axis), which conforms to the electric field characteristics of the slot DM mode.

[0317] Figure 19 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0318] like Figure 19 As shown, the feed element 221 includes a first connection point 241 and a second connection point 243, with a feed point 211 located between connection points 241 and 243. The antenna 200 may also include electronic components 242 and 244. A first end of electronic component 242 is coupled to connection point 241, and a second end of electronic component 242 is coupled to ground plane 300. A first end of electronic component 244 is coupled to connection point 243, and a second end of electronic component 244 is coupled to ground plane 300.

[0319] In one embodiment, connection point 241 is located at the second end of power supply component 221, and connection point 243 is located at the first end of power supply component 221. When the electrical length of power supply component 221 remains constant, electronic components 242 and 244 can be used to reduce the physical length of power supply component 221 to achieve miniaturization. In one embodiment, the distance between connection point 241 and the end of the second end of power supply component 221 is less than or equal to 3 mm. In one embodiment, the distance between connection point 243 and the end of the first end of power supply component 221 is less than or equal to 3 mm.

[0320] In one embodiment, when electronic components 242 and 244 are provided, the physical length L1 of the radiator 210 and the physical length L2 of the feeder 221 satisfy: L1×70%≤L2≤L1×90%.

[0321] It should be understood that Figure 19 The antenna 200 shown is Figure 9 The differences in the antenna 200 shown include the arrangement of electronic components 244 and 242.

[0322] In one embodiment, when electronic components 242 and 244 are capacitors, their capacitance values ​​are less than a first threshold. When the frequency of the electrical signal fed into the power supply circuit 231 is less than or equal to 1 GHz, the first threshold is 10 pF. When the frequency of the electrical signal fed into the power supply circuit 231 is greater than 1 GHz and less than or equal to 2 GHz, the first threshold is 5 pF. When the frequency of the electrical signal fed into the power supply circuit 231 is greater than 2 GHz and less than or equal to 3 GHz, the first threshold is 3 pF. When the frequency of the electrical signal fed into the power supply circuit 231 is greater than 3 GHz, the first threshold is 2 pF.

[0323] In one embodiment, the capacitance value of electronic component 242 and the capacitance value of electronic component 244 may be the same or different, and this application embodiment does not limit this.

[0324] For the sake of brevity, Figure 19 The antenna 200 shown is Figure 9 The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include the position of the radiator 210 and its positional relationship with the feed element 221; the radiator 210 and the feed element 221 are used to generate a first resonance and a second resonance; the first resonance and the second resonance can be used to jointly support an operating frequency band; the position and width of the first slot; the boundary conditions of the feed element 221 (open end or ground end); the shape of the feed element 221, for example, it is strip-shaped; the position of the feed element 221; and so on.

[0325] Figure 20 and Figure 21 yes Figure 19The simulation results of antenna 200 in the electronic device 10 under different conditions are shown. Figure 20 yes Figure 19 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 under different conditions. Figure 21 yes Figure 19 Simulation results of system efficiency and radiation efficiency of antenna 200 in electronic device 10 under different conditions.

[0326] It should be understood that in the above simulation results, the radiators are all the same size and the feeders are all 1mm wide. The simulation results of antenna 200 with different physical lengths of feeders and different distances between feeders and radiators are shown.

[0327] Scenario 1: Figure 9 The antenna shown does not have electronic component 244. The distance between the feed element and the radiator is 1.8 mm, the length of the feed element is 23 mm, and the capacitance of electronic component 242 is 1 pF.

[0328] Scenario 2: Figure 19 The antenna shown has a distance of 1.2 mm between the feed element and the radiator, a length of 15 mm for the feed element, a capacitance of 1.5 pF for electronic component 242, and a capacitance of 0.7 pF for electronic component 244.

[0329] Scenario 3: Figure 19 The antenna shown has a distance of 0.6 mm between the feed element and the radiator, a length of 7 mm for the feed element, a capacitance of 3.6 pF for electronic component 242, and a capacitance of 2 pF for electronic component 244.

[0330] like Figure 20 As shown, the antennas in cases 1, 2, and 3 can all resonate around 1.9 GHz (first resonance) and around 2.2 GHz. However, as the length of the feed element decreases, the operating bandwidth of the antenna gradually decreases, with S11 < -4 dB as the limit.

[0331] As shown in Figure 21, the first and second resonances in cases 1, 2, and 3 can all be generated by the slot CM mode. The antenna does not produce a dent within the operating frequency band formed by the first and second resonances, exhibiting good radiation efficiency and system efficiency. However, as the length of the feed component decreases, taking a system efficiency > -2dB as an example, the system efficiency bandwidth of antenna 200 gradually decreases.

[0332] Figure 22 and Figure 23 yes Figure 19 The simulation results of the antenna with the feeder component in the electronic device 10 placed in different positions are shown. Figure 20 yes Figure 19Simulation results of the S-parameters of the antenna in the electronic device 10 shown, with the feeder set in different positions. Figure 21 yes Figure 19 Simulation results of the system efficiency and radiation efficiency of the antenna in the electronic device 10 with the feeder set in different positions.

[0333] It should be understood that in the above embodiments, the description only takes the example of the power supply component being installed on the bracket. Figure 22 and Figure 23 The simulation results shown illustrate the antenna simulation results when the feed component is mounted on the bracket or the PCB. Compared to the feed component being mounted on the bracket surface, when it is mounted on the PCB (taking a PCB thickness of 0.7mm as an example), a microstrip line structure is formed. By adjusting the distance between the feed component and the radiator, as well as electronic components 242 and 244, the resonant frequencies of the first and second resonants can be adjusted.

[0334] like Figure 22 As shown, when the feed component is mounted on a bracket or PCB, the antenna can resonate around 1.9 GHz (first resonance) and around 2.2 GHz.

[0335] As shown in Figure 23, both the first and second resonances can be generated by the slot CM mode. When the feed component is mounted on a bracket or PCB, the antenna will not generate a pit within the operating frequency band formed by the first and second resonances, resulting in good radiation efficiency and system efficiency. However, when the feed component is mounted on a PCB to form a microstrip line structure, the antenna's radiation efficiency decreases slightly.

[0336] Figure 24 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0337] like Figure 24 As shown, antenna 200 may also include switches 251 and 252. Switch 251 may be coupled between connection point 241 and ground 300 and may be used to switch electronic component 242. Switch 252 may be coupled between conductors on both sides of the first gap and may be used to switch electronic component 245.

[0338] It should be understood that Figure 24 The antenna 200 shown is Figure 19 The differences in the antenna 200 shown include switch 251, switch 252, and electronic component 245. Figure 24 The switches 251 and 252 in the antenna 200 shown can switch different electronic components 242 and 245 to adjust the resonant frequency of the first resonance and the resonant frequency of the second resonance.

[0339] It should be understood that Figure 24 It can also be based on Figure 9The overall structure is designed with the only difference being the addition of switches 252 coupled to both sides of the first gap, and the electronic components and switches 251 that are coupled to the power supply component.

[0340] For the sake of brevity, Figure 24 The antenna 200 shown is Figure 9 or Figure 19 Similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include: the position of the radiator 210 and its positional relationship with the feed element 221; the physical length ratio between the radiator 210 and the feed element 221; the use of the radiator 210 and the feed element 221 to generate the first resonance and the second resonance; the first resonance and the second resonance can be used to jointly support an operating frequency band; the position and width of the first slot; the boundary conditions of the feed element 221 (open end or ground end); the shape of the feed element 221, for example, a strip shape; the location of the feed element 221; and so on.

[0341] Figure 25 and Figure 26 yes Figure 24 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 25 yes Figure 24 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 26 yes Figure 24 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0342] like Figure 25 As shown, in Figure 24 In the antenna 200 shown, switches 251 and 252 can switch different electronic components 242 and 245 to adjust the resonant frequency of the first resonance and the resonant frequency of the second resonance.

[0343] It should be understood that different electronic components 242 and 245 can be switched according to the different communication requirements of electronic device 10. For the sake of brevity, in Figure 25 and Figure 26 The simulation results shown only include simulation results for four different switching states (a switching state can be understood as switching between different electronic components 242 and / or electronic components 245).

[0344] As shown in Figure 26, the antenna exhibits good radiation efficiency and system efficiency at different resonant frequencies of the first and second resonances, and the antenna does not generate pits within the operating frequency band formed by the first and second resonances.

[0345] Figure 27 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0346] like Figure 27 As shown, the first end of the power supply component 221 is an open end and the second end is a grounded end. The second end of the power supply component 221 is coupled to the ground plane 300.

[0347] In one embodiment, the distance between the end of the first end of the feed point 211 and the feed element 221 is different from the distance between the end of the second end of the feed point 211 and the feed element 221, and the feed element 221 can feed the electrical signal in an offset manner.

[0348] In one embodiment, the power supply point 211 may be located at the first end of the power supply component 221. In one embodiment, the distance between the power supply point 211 and the end of the first end of the power supply component 221 is less than or equal to 3 mm, and the power supply component 221 may feed the electrical signal in a side-feed manner.

[0349] In one embodiment, the distance between the feed point 211 and the end of the first end of the feed element 221 is greater than half the length of the feed element 221. The feed element 221 can be formed into a structure similar to a left-handed antenna, which can be, for example, an antenna conforming to a composite right and left hand (CRLH) transmission line structure.

[0350] It should be understood that Figure 27 The antenna 200 shown is Figure 19 The difference in the antenna 200 shown is that the second end of the feed element 221 is a ground terminal.

[0351] exist Figure 19 In the antenna 200 shown, the first and second ends of the feed element 221 are open ends, and the feed element 221 forms a radiating structure that conforms to a dipole antenna. Figure 27 In the antenna 200 shown, the first end of the feed element 221 is an open end, and the second end is a grounded end. The feed element 221 can be formed into a structure similar to a monopole or a left-handed antenna. When an electrical signal is fed into the feed point, a current in the same direction can also be generated on the radiator 210, similar to... Figure 19 The current on the feed element 221 shown can also excite the radiator 210 to resonate. Furthermore, since the first end of the feed element 221 is an open end and the second end is a ground end, the size of the feed element 221 can be further reduced (for example, it can be regarded as a reduction from a half-wavelength structure to a quarter-wavelength structure), thus achieving miniaturization.

[0352] In one embodiment, the distance between the projection of the first gap onto the power supply 221 and the grounding terminal (grounding point of the second end) of the power supply 221 is less than or equal to half the length of the power supply 221. In another embodiment, the distance between the projection of the grounding terminal (grounding point of the second end) of the power supply 221 onto the frame 11 and the first gap is less than or equal to one-quarter the length of the radiator 210.

[0353] It should be understood that the radiator 210 has a weak current and a strong electric field in the region near the first gap. The feeder 221 has a weak electric field and a strong current in the region near its grounding terminal. The proximity of the region of the radiator 210 with a strong electric field (strong magnetic field) (the first gap) to the region of the feeder 221 with a weak electric field (strong magnetic field) (the grounding terminal) can make the first and second resonances more balanced.

[0354] In one embodiment, the projection of the power supply element 221 onto the frame 11 is located between a first position and a second position.

[0355] In one embodiment, the ratio of the length of the overlapping portion of the projection of the power supply element 221 on the frame 11 and the radiator 210 to the length of the radiator 210 is greater than or equal to 12.5%. In another embodiment, the ratio of the length of the overlapping portion of the projection of the power supply element 221 on the frame 11 and the radiator 210 to the length of the radiator 210 is greater than or equal to 25%.

[0356] In one embodiment, the ratio of the length of the overlapping portion of the feeder 221 and the radiator 210 along the first direction (the overlapping portion of the projection of the feeder 221 on the frame 11 and the radiator 210) to the length of the feeder 221 is greater than or equal to 50%.

[0357] In one embodiment, the electrical length of the feed element 221 is one-quarter of the first wavelength, and the electrical length of the radiator 210 is half of the first wavelength. The first wavelength is the wavelength corresponding to the center frequency between the resonant point of the first resonance and the resonant point of the second resonance.

[0358] In one embodiment, the electrical length of the feed element 221 is half the electrical length of the radiator 210. In another embodiment, the physical length of the feed element 221 is approximately half the physical length of the radiator 210. Since the electronic components coupled to the feed element 221 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L2 of the feed element 221 satisfy the following condition: L1 × 25% ≤ L2 ≤ L1 × 50%. In another embodiment, the physical length L1 of the radiator 210 and the physical length L2 of the feed element 221 satisfy the following condition: L1 × 35% ≤ L2 ≤ L1 × 75%.

[0359] For the sake of brevity, Figure 27 The antenna 200 shown is Figure 9 The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include the radiator 210 and the feed element 221 used to generate a first resonance and a second resonance; the first resonance and the second resonance can be used to jointly support an operating frequency band; the location and width of the first slot; the shape of the feed element 221, for example, it is strip-shaped; the location of the feed element 221, etc.

[0360] It should be understood that the antenna 200 shown in the above embodiments (e.g., Figure 9 , Figure 19 , Figure 24 The power supply components shown in the figure can all adopt a structure with the first end being an open end and the second end being a grounded end to reduce the size. This application does not limit this.

[0361] at the same time, Figure 27 The antenna 200 shown can also be used Figure 24 The switch structure shown in the figure, for example, can be coupled to both sides of the first gap, and can be coupled between the first end of the power supply 221 and the ground. This application embodiment does not limit this, and can be understood accordingly in the application embodiment, and will not be described in detail.

[0362] Figure 28 and Figure 29 yes Figure 27 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 28 yes Figure 27 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 29 yes Figure 27 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0363] like Figure 28 As shown, compared to Figure 19 The antenna shown Figure 27 The antenna shown can also resonate around 1.9 GHz and 2.2 GHz (because the resonant frequencies of the two resonators are close, they combine into one resonant). However, due to... Figure 27 The antenna shown has an open end for the first feed component and a ground end for the second. The antenna structure has poor symmetry, resulting in a narrow operating bandwidth. Furthermore, the excitation of the slot DM mode near 3.1 GHz is enhanced.

[0364] like Figure 29 As shown, the antenna does not produce a dent within the operating frequency band formed by the first and second resonances, exhibiting good radiation efficiency and system efficiency.

[0365] Figure 30 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0366] like Figure 30 As shown, the first end and the second end of the power supply component 221 are open. The power supply component 221 includes a grounding point 212. The grounding point 212 is coupled to the ground plane 300.

[0367] In one embodiment, the feed point 211 may be located at the first end or the second end of the feed element 221. In one embodiment, the distance between the feed point 211 and the end of the first or second end of the feed element 221 is less than or equal to 3 mm, and the feed element 221 may feed the electrical signal in a side-feed manner.

[0368] In one embodiment, the lengths of the feeders 221 on both sides of the grounding point 212 are different, and the feeders 221 form an asymmetrical T-shaped structure. In one embodiment, the difference in length of the feeders 221 on both sides of the grounding point 212 can be understood as the difference in length of the feeders 221 on both sides of the grounding point 212 being greater than or equal to 5 mm.

[0369] It should be understood that Figure 30 The antenna 200 shown is Figure 19 The difference in the antenna 200 shown is that the feed element 221 also includes a ground point 212, which is coupled to the ground plane 300.

[0370] It should be understood that Figure 30 The asymmetrical T-shaped feed element can also be applied to the antenna 200 shown in the above embodiments (e.g., Figure 9 , Figure 19 , Figure 24 , Figure 27 ))middle.

[0371] For the sake of brevity, Figure 30 The antenna 200 shown is Figure 9 The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include the position of the radiator 210 and its positional relationship with the feed element 221; the radiator 210 and the feed element 221 are used to generate the first resonance and the second resonance; the first resonance and the second resonance can be used to jointly support an operating frequency band; the position and width of the first slot; the boundary conditions of the feed element 221 (open end or ground end); the shape of the feed element 221, for example, it is strip-shaped; the position of the feed element 221, etc.

[0372] Figure 30In the antenna 200 shown, the feed element 221 can simultaneously have both line DM mode and line CM mode. When an electrical signal is fed into the feed circuit 231, the antenna 200 can generate a first resonance, a second resonance, a third resonance, and a fourth resonance to extend the operating bandwidth of the antenna 200.

[0373] In one embodiment, the first and second resonances may correspond to the slot CM mode, and the third and fourth resonances may correspond to the slot DM mode.

[0374] It should be understood that the larger or smaller the ratio of the lengths of the feeders 221 on both sides of the grounding point 212 (approximately away from the center of the feeder 221), the greater the frequency difference between the first resonance (second resonance) and the third resonance (fourth resonance).

[0375] In one embodiment, at the resonant point of the first resonance, the currents on the radiators 210 on both sides of the first gap are in the same direction, and the radiators 210 on both sides of the first gap each have currents in the same direction (or, there are no points on the radiators where the currents are reversed). At the resonant point of the second resonance, the currents on the radiators 210 on both sides of the first gap are in the same direction, and the radiators 210 on both sides of the first gap each have currents in the same direction (or, there are no points on the radiators where the currents are reversed).

[0376] In one embodiment, at the resonant point of the third resonance, the currents on the radiators 210 on both sides of the first gap are reversed, and reverse currents are distributed on each of the radiators 210 on both sides of the first gap (or, the radiators have current reversal points). At the resonant point of the fourth resonance, the currents on the radiators 210 on both sides of the first gap are reversed, and reverse currents are distributed on each of the radiators 210 on both sides of the first gap (or, the radiators have current reversal points).

[0377] In one embodiment, at the resonance point of the first resonance, the current on the feeder 221 is in the same direction, and at the resonance point of the second resonance, the current on the feeder 221 is in the same direction. Furthermore, at the resonance point of the first resonance, the feeders 221 on both sides of the grounding point 212 each have currents in the same direction (or, there is no point on the feeder 221 where the current is in the opposite direction).

[0378] Figure 31 and Figure 32 yes Figure 30 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 31 yes Figure 9 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 32 yes Figure 30 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0379] like Figure 31As shown, antenna 200 can resonate near 2.1 GHz, 2.4 GHz, 3.4 GHz, and 3.5 GHz. The resonance near 2.1 GHz corresponds to the first resonance in the above embodiment, the resonance near 2.4 GHz corresponds to the second resonance in the above embodiment, the resonance near 3.4 GHz corresponds to the third resonance in the above embodiment, and the resonance near 3.5 GHz corresponds to the fourth resonance in the above embodiment.

[0380] like Figure 32 As shown, the first and second resonances can both be generated by the slot CM mode, and the third and fourth resonances can both be generated by the slot DM mode. Since the slot CM mode has higher radiation efficiency and system efficiency than the slot DM mode, the radiation efficiency and system efficiency of the antenna forming the operating frequency band by the first and second resonances are better than those of the antenna forming the operating frequency band by the third and fourth resonances.

[0381] Figures 33 to 40 yes Figure 30 A schematic diagram showing the current and electric field distribution of the antenna 200 in the electronic device 10. Wherein, Figure 33 yes Figure 30 The diagram shows the current distribution of the antenna at the first resonance point (2.12 GHz). Figure 34 yes Figure 30 The diagram shows the current distribution of the antenna at the second resonance point (2.45 GHz). Figure 35 yes Figure 30 The diagram shows the current distribution of the antenna at the third resonance point (3.43 GHz). Figure 36 yes Figure 30 The diagram shows the current distribution of the antenna at the fourth resonance point (3.54 GHz). Figure 37 yes Figure 30 The diagram shows the electric field distribution of the antenna at the first resonance point (2.12 GHz). Figure 38 yes Figure 30 The diagram shows the electric field distribution of the antenna at the second resonance point (2.45 GHz). Figure 39 yes Figure 30 The diagram shows the electric field distribution of the antenna at the resonant point of the third resonance (3.43 GHz). Figure 40 yes Figure 30 The diagram shows the electric field distribution of the antenna at the fourth resonance point (3.54 GHz).

[0382] like Figure 33As shown, the currents on the radiators on both sides of the first slot are in the same direction, and the currents on the feeders on both sides of the grounding point are in the same direction. The current distribution on the radiators conforms to the current characteristics of the slot CM mode. The current distribution on the feeders conforms to the current characteristics of the line DM mode.

[0383] like Figure 34 As shown, the currents on the radiators on both sides of the first slot are in the same direction, and the currents on the feeders on both sides of the grounding point are in the same direction. The current distribution on the radiators conforms to the current characteristics of the slot CM mode. The current distribution on the feeders conforms to the current characteristics of the line DM mode.

[0384] like Figure 35 As shown, the currents on the radiators on both sides of the first slot are in opposite directions, and the currents on the feeders on both sides of the grounding point are in opposite directions. The current distribution on the radiators conforms to the current characteristics of the slot DM mode. The current distribution on the feeders conforms to the current characteristics of the line CM mode.

[0385] like Figure 36 As shown, the currents on the radiators on both sides of the first slot are in opposite directions, and the currents on the feeders on both sides of the grounding point are in opposite directions. The current distribution on the radiators conforms to the current characteristics of the slot DM mode. The current distribution on the feeders conforms to the current characteristics of the line CM mode.

[0386] like Figure 37 As shown, the electric field generated by the antenna is opposite on both sides of the first slot (pointing to the positive and negative z-axis respectively), which conforms to the electric field characteristics of the slot CM mode.

[0387] like Figure 38 As shown, the electric field generated by the antenna is opposite on both sides of the first slot (pointing to the positive and negative z-axis respectively), which conforms to the electric field characteristics of the slot CM mode.

[0388] like Figure 39 As shown, the electric field generated by the antenna is in the same direction on both sides of the first slot (both pointing towards the positive z-axis), which conforms to the electric field characteristics of the slot DM mode.

[0389] like Figure 40 As shown, the electric field generated by the antenna is in the same direction on both sides of the first slot (both pointing towards the positive z-axis), which conforms to the electric field characteristics of the slot DM mode.

[0390] Figure 41 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0391] like Figure 41As shown, the frame 11 includes a first position 201, a second position 202, and a third position 203 arranged sequentially, with the second position 202 located between the first position 201 and the third position 203. The frame 11 is coupled to the floor 300 at the first position 201 and the second position 202, and a first gap is formed between the first position 201 and the second position 202. The frame 11 also has a second gap at the third position 203. In one embodiment, the first gap is located in the central region between the first position 201 and the second position 202.

[0392] The radiator 210 is the conductive portion of the frame 11 between the first position 201 and the second position 202. The conductive portion of the frame 11 between the second position 202 and the third position 203 is a parasitic branch.

[0393] In one embodiment, the distance between the second position 202 and the third position 203 is greater than or equal to one-third and less than or equal to two-thirds of the distance between the first position 201 and the second position 202.

[0394] It should be understood that Figure 41 The antenna 200 shown is Figure 19 The antenna 200 shown is distinguished by its parasitic stub. The radiator 210 (the conductive portion between the first position 201 and the second position 202) can form a slot antenna, generating the first and second resonances in slot CM mode. The parasitic stub and a portion of the radiator 210 (the conductive portion between the first slot and the third position 203 (the second slot)) can form a radiator structure for a conformal line antenna, generating a fifth resonance in line DM mode. In one embodiment, the fifth resonance can be used to extend the operating bandwidth of the antenna 200, and the first, second, and fifth resonances can collectively support one operating frequency band of the electronic device 10. In one embodiment, the resonant frequency of the fifth resonance can be greater than the resonant frequencies of the first and second resonances. In another embodiment, the resonant frequency of the fifth resonance can be less than the resonant frequencies of the first and second resonances.

[0395] In one embodiment, in the low-frequency band (less than or equal to 1 GHz, e.g., 698 MHz–960 MHz), the frequency difference between the resonant frequency of the fifth resonance and the resonant frequency of the first or second resonance is greater than or equal to 50 MHz and less than or equal to 160 MHz. In the mid-frequency band (in the range of 1 GHz–2 GHz, e.g., 1710 MHz–2170 MHz), the frequency difference between the resonant frequency of the fifth resonance and the resonant frequency of the first or second resonance is greater than or equal to 120 MHz and less than or equal to 300 MHz. In the high-frequency band (in the range of 2 GHz–3 GHz, e.g., 2300 MHz–2690 MHz), the frequency difference between the resonant frequency of the fifth resonance and the resonant frequency of the first or second resonance is greater than or equal to 160 MHz and less than or equal to 500 MHz.

[0396] This should be understandable. Figure 41 The radiator 210 and feed element of the antenna 200 can also be replaced with Figure 9 , Figure 19 , Figure 24 , Figure 27 , Figure 30 The antenna 200 shown in the figure is only different in that the conductor between the second and third positions is used as a parasitic branch.

[0397] For the sake of brevity, Figure 41 The antenna 200 shown is Figure 9 , Figure 19 , Figure 24 , Figure 27 , Figure 30 The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include the position of the radiator 210 and its positional relationship with the feed element 221; the position and width of the first slot; the boundary conditions of the feed element 221 (open end or ground end); the shape of the feed element 221, for example, it is strip-shaped; the position of the feed element 221, etc.

[0398] In one embodiment, the second position 202 may be located in the central region of the conductive portion between the first gap and the third position 203.

[0399] Figure 42 and Figure 43 yes Figure 41 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 42 yes Figure 41 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 43 yes Figure 41 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0400] like Figure 42 As shown, in the 1.6GHz to 2.4GHz range, compared to Figure 9 , Figure 19 , Figure 24 , Figure 27 , Figure 30 The antenna shown Figure 41 The antenna shown can generate an additional fifth resonance (around 2.24 GHz), with an operating bandwidth greater than [value missing], provided that S11 is less than -4 dB. Figure 19 The antenna shown has a working bandwidth.

[0401] like Figure 43 As shown, no efficiency dips are generated near the fifth resonance that the antenna can generate additionally. The antenna has good radiation efficiency and system efficiency within the operating frequency band formed by the first, second, and fifth resonances.

[0402] Figures 44 to 46 yes Figure 41 A schematic diagram of the current distribution in the antenna 200 of the electronic device 10 shown. Wherein, Figure 44 yes Figure 41 The diagram shows the current distribution of the antenna at the first resonance point (1.79 GHz). Figure 45 yes Figure 30 The diagram shows the current distribution of the antenna at the second resonance point (2.01 GHz). Figure 46 yes Figure 30 The diagram shows the current distribution of the antenna at the fifth resonance point (2.24 GHz).

[0403] like Figure 44 and 45 As shown, both the first resonance and the second resonance are generated by the slot CM mode of the slot antenna formed by the conductor portion between the first position and the second position. The currents on the radiators on both sides of the first slot are in the same direction (the currents on the radiators between the first position 201 and the first slot and the currents on the radiators between the first slot and the second position 202 are in the same direction).

[0404] like Figure 46 As shown, the fifth resonance is generated by the radiator structure (line DM mode) of the coincident line antenna formed by the conductive portion between the first slot and the third position. The currents on the conductor portions on both sides of the second position are in the same direction (the currents on the radiator between the first slot and the second position 202 are in the same direction as the currents on the parasitic stubs between the second position 202 and the third position).

[0405] Figure 47 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0406] It should be understood that, Figure 41 In the antenna 200 shown, the first and second ends of the feed element 221 are open ends, and the feed element 221 forms a dipole antenna. Figure 47 In the antenna 200 shown, the first end of the feed element 221 is an open end and the second end is a ground end. The feed element 221 can be formed into a structure similar to a monopole or a left-handed antenna. The feed element 221 with this structure can also excite the antenna 200 to generate the first resonance, the second resonance and the fifth resonance mentioned above.

[0407] In one embodiment, the antenna 200 may further include an electronic component 246, which may be coupled between a conductor on one side of the first gap and a ground plane.

[0408] It should be understood that because the first end of the feed element is an open end and the second end is a grounded end, the antenna structure has poor symmetry. Therefore, the excitation of the third resonance generated by the slot DM mode (the conductor portion between the first and second positions forms a radiator structure consistent with a slot antenna) is enhanced. Electronic component 246 can be used to adjust the resonant frequency of the third resonance so that the first, second, and third resonances together support one operating frequency band of the electronic device 10.

[0409] at the same time, Figure 47 The technical solution shown can also be applied to the above. Figure 9 , Figure 19 , Figure 24 , Figure 27 , Figure 30 , Figure 41 For the sake of brevity, the antenna 200 shown will not be described in detail.

[0410] For the sake of brevity, Figure 47 The antenna 200 shown is Figure 9 , Figure 19 , Figure 24 , Figure 27 , Figure 30 , Figure 41 The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include the position of the radiator 210 and its positional relationship with the feed element 221; the position and width of the first slot; the shape of the feed element 221, for example, it is strip-shaped; the position where the feed element 221 is located, etc.

[0411] At the same time, Figure 41 as well as Figure 47 The illustrated technical solution utilizes the conductive portion between the first slot and the third position 203 (second slot) to form a radiator structure consistent with a linear antenna, generating a fifth resonance from the linear DM mode. This technical solution can be applied to the aforementioned... Figures 9 to 40 In any of the embodiments shown.

[0412] Figure 48 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0413] like Figure 48 As shown, the frame 11 is coupled to the floor 300 at the first position 201 and has a first gap at the second position 202. The first end of the radiator 210 is a grounded end and the second end is an open end. The first end and the second end of the radiator 210 correspond to the first position 201 and the second position 202 of the frame 11, respectively. The first end and the second end of the power supply component 221 are open ends.

[0414] In one embodiment, the ratio of the length of the overlapping portion of the projection of the power supply element 221 on the frame 11 and the radiator 210 to the length of the radiator 210 is greater than or equal to 50%.

[0415] In one embodiment, the ratio of the length of the overlapping portion of the feeder 221 and the radiator 210 along the first direction (the overlap between the projection of the feeder 221 on the frame 11 and the radiator 210) to the length of the feeder 221 is greater than or equal to 20%. In another embodiment, the ratio of the length of the overlapping portion of the feeder 221 and the radiator 210 along the first direction (the overlap between the projection of the feeder 221 on the frame 11 and the radiator 210) to the length of the feeder 221 is greater than or equal to 30%.

[0416] In one embodiment, the distance between the projection of the first gap onto the power supply element 221 and the midpoint of the power supply element 221 is less than or equal to one-quarter of the length of the power supply element 221. In another embodiment, the projection of the first gap onto the power supply element 221 is in the central region of the power supply element 221.

[0417] The radiator 210 has a weaker current and a stronger electric field in the region near the first gap. The feeder 221 has a weaker electric field and a stronger current in the region near its center. The proximity of the region with a stronger electric field (stronger magnetic field) of the radiator 210 (the first gap) to the region with a weaker electric field (stronger magnetic field) of the feeder 221 (the midpoint) allows for a more balanced first and second resonance.

[0418] It should be understood that Figure 48 The difference between the antenna 200 shown and the antenna 200 shown in the above embodiment is that the second end of the radiator 210 is an open end.

[0419] In the antenna 200 shown in the above embodiment, the first end and the second end of the radiator 210 are grounded ends, and the radiator 210 can form a radiator structure that conforms to a slot antenna. Figure 48In the antenna 200 shown, the first end of the radiator 210 is a grounded end and the second end is an open end. When an electrical signal is fed into the feed point, a current in the same direction can be generated on the radiator 210, which can also excite the radiator 210 to generate a first resonance and a second resonance. Furthermore, since the first end of the radiator 210 is a grounded end and the second end is an open end, the size of the radiator 210 can be further reduced (for example, it can be regarded as a reduction from a half-wavelength structure to a quarter-wavelength structure), achieving miniaturization.

[0420] In one embodiment, the electrical length of the radiator 210 is one-quarter of the first wavelength, and the electrical length of the feeder 221 is half of the first wavelength. The first wavelength is the wavelength corresponding to the center frequency between the resonant point of the first resonance and the resonant point of the second resonance.

[0421] In one embodiment, the electrical length of the radiator 210 is half the electrical length of the feeder 221, and correspondingly, the physical length of the radiator 210 is approximately half the physical length of the feeder 221. Since the electronic components coupled to the feeder 221 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L2 of the feeder 221 satisfy: L1 ≤ L2 ≤ L1 × 200%, or in other words, the physical length L2 of the feeder 221 is between 1.4 and 2.6 times the physical length L1 of the radiator 210 (including the endpoints). In one embodiment, the physical length L1 of the radiator 210 and the physical length L2 of the feeder 221 satisfy: L1 × 200% ≤ L2 ≤ L1 × 300%.

[0422] For the sake of brevity, Figure 48 The parts of the antenna 200 shown are similar to those in the above embodiments and will not be described in detail. For example, similar parts include the radiator 210 and the feed element 221 for generating the first resonance and the second resonance; the first resonance and the second resonance can be used to jointly support a working frequency band; the width of the first slot; the shape of the feed element 221, for example, it is strip-shaped; the position of the feed element 221, etc.

[0423] Figure 49 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0424] like Figure 49 As shown, the frame 11 is coupled to the ground 300 at the first position 201 and the second position 202. The first end and the second end of the radiator 210 are grounded, and the radiator 210 forms a radiator structure conforming to a slot antenna. A first gap is formed between the first position 201 and the second position 202 in the frame 11. In one embodiment, the first gap is located in the central region between the first position 201 and the second position 202.

[0425] Antenna 200 may include a first feed element 221, a second feed element 222, and a radiator 210.

[0426] The radiator 210 is the conductive portion of the frame 11 between the first position 201 and the second position 202. The first and second ends of the radiator 210 are open ends.

[0427] The first feed element 221, the second feed element 222, and the radiator 210 are spaced apart from each other. The radiator 210 at least partially overlaps with the first feed element 221 and the second feed element 222 along a first direction, which is perpendicular to the extension direction of the first radiator 210 (e.g., the y-direction). In one embodiment, the extension direction of the radiator 210 is the same as the extension direction of the feed element 221. The first and second ends of the first feed element 221 are grounded. The first and second ends of the second feed element 222 are open ends.

[0428] The antenna 200 also includes a first feed circuit 231 and a second feed circuit 232. The first feed element 221 includes a first feed point, and the first feed circuit 231 is coupled to the first feed point. The second feed element 222 includes a second feed point, and the second feed circuit 232 is coupled to the second feed point.

[0429] It should be understood that in the above embodiments, the description is based on the example of a one-to-one correspondence between the radiator and the feeder. Figure 49 In the embodiment shown, the radiator can be excited by two feed elements to generate resonance, thereby expanding the bandwidth while reducing the size of the antenna 200.

[0430] Antenna 200 may include a first antenna and a second antenna. Radiator 210 and first feed element 221 may form the first antenna. Radiator 210 and second feed element 222 may form the second antenna.

[0431] In the first antenna, the radiator 210 forms a radiator structure that conforms to a slot antenna. An electrical signal is fed in through the first feeding unit. The radiator 210 can generate a first resonance and a second resonance in slot DM mode. The first resonance and the second resonance are used to jointly support the first operating frequency band of the electronic device 10.

[0432] In the second antenna, the radiator 210 forms a radiator structure that conforms to a slot antenna. An electrical signal is fed in through the second feeding unit. The radiator 210 can generate a third resonance and a fourth resonance in the slot CM mode. The third resonance and the fourth resonance are used to jointly support the second operating frequency band of the electronic device 10.

[0433] In one embodiment, the first and second resonators can be close to each other so that they jointly support an operating frequency band of the electronic device 10. In one embodiment, the frequency difference between the first and second resonators is in the range of 5% to 20% (greater than or equal to 5% and less than or equal to 20%) of the low-frequency or high-frequency resonant point. In one embodiment, in the low-frequency band (less than or equal to 1 GHz, e.g., 698 MHz-960 MHz), the frequency difference between the resonant point frequency of the first resonator and / or the resonant point frequency of the second resonator is greater than or equal to 50 MHz and less than or equal to 160 MHz. In the mid-frequency band (in the range of 1 GHz-2 GHz, e.g., 1710 MHz-2170 MHz), the frequency difference between the resonant point frequency of the first resonator and / or the resonant point frequency of the second resonator is greater than or equal to 120 MHz and less than or equal to 300 MHz. In the high-frequency band (within the range of 2GHz-3GHz, for example, 2300MHz-2690MHz), the frequency difference between the resonant frequency of the first resonance and / or the resonant frequency of the second resonance is greater than or equal to 160MHz and less than or equal to 500MHz.

[0434] In one embodiment, the third and fourth resonators may be close to each other so that they are used to jointly support an operating frequency band of the electronic device 10. In one embodiment, the frequency difference between the third and fourth resonators is in the range of 5% to 20% (greater than or equal to 5% and less than or equal to 20%) of the low-frequency or high-frequency resonant point. In one embodiment, in the low-frequency band (less than or equal to 1 GHz, e.g., 698 MHz-960 MHz), the frequency difference between the resonant point frequency of the third resonator and / or the resonant point frequency of the fourth resonator is greater than or equal to 50 MHz and less than or equal to 160 MHz. In the mid-frequency band (in the range of 1 GHz-2 GHz, e.g., 1710 MHz-2170 MHz), the frequency difference between the resonant point frequency of the third resonator and / or the resonant point frequency of the fourth resonator is greater than or equal to 120 MHz and less than or equal to 300 MHz. In the high-frequency band (within the range of 2GHz-3GHz, for example, 2300MHz-2690MHz), the frequency difference between the resonant frequency of the third resonance and / or the resonant frequency of the fourth resonance is greater than or equal to 160MHz and less than or equal to 500MHz.

[0435] In one embodiment, at the resonant point of the first resonance, the currents on the radiators 210 on both sides of the first slit are reversed. At the resonant point of the second resonance, the currents on the radiators 210 on both sides of the first slit are reversed.

[0436] In one embodiment, at the resonant point of the first resonance, the currents on the first feeders 221 on both sides of the center are reversed. At the resonant point of the second resonance, the currents on the first feeders 221 on both sides of the center are reversed. It should be understood that the reverse current distribution on the first feeders 221 allows operation in slot DM mode.

[0437] In one embodiment, at the resonant point of the third resonance, the currents on the radiators 210 on both sides of the first slit are in the same direction. At the resonant point of the fourth resonance, the currents on the radiators 210 on both sides of the first slit are in the same direction.

[0438] In one embodiment, at the resonant point of the third resonance, the current in the second feed element 222 is in the same direction. At the resonant point of the fourth resonance, the current in the second feed element 222 is in the same direction. It should be understood that the current in the second feed element 222 is distributed in the same direction, which allows it to operate in line DM mode.

[0439] In one embodiment, both ends of the first feed element 221 are grounded, and the electrical length of the radiator 210 is the same as that of the feed element 221, which is half of the first wavelength. The first wavelength is the wavelength corresponding to the center frequency between the resonant point of the first resonance and the resonant point of the second resonance.

[0440] In one embodiment, the electrical length of the radiator 210 is the same as the electrical length of the first feeder 221, and correspondingly, the physical length of the radiator 210 is approximately the same as the physical length of the first feeder 221. Since the electronic components coupled to the first feeder 221 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L2 of the first feeder 221 satisfy: L1×50%≤L2≤L1. In another embodiment, the physical length L1 of the radiator 210 and the physical length L2 of the first feeder 221 satisfy: L1≤L2≤L1×150%.

[0441] In one embodiment, both ends of the second feed element 222 are open ends, and the electrical length of the radiator 210 is the same as that of the second feed element 222, which is half of the second wavelength. The second wavelength is the wavelength corresponding to the center frequency of the third resonance and the fourth resonance.

[0442] In one embodiment, the electrical length of the radiator 210 is the same as the electrical length of the second feeder 222, and correspondingly, the physical length of the radiator 210 is approximately the same as the physical length of the second feeder 222. Since the electronic components coupled to the second feeder 222 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L3 of the second feeder 222 satisfy: L1×50%≤L3≤L1. In another embodiment, the physical length L1 of the radiator 210 and the physical length L3 of the second feeder 222 satisfy: L1≤L3≤L1×150%.

[0443] In one embodiment, in the electronic device 10, the spacing between the first power supply element 221 and the second power supply element 222 can be understood as the first power supply element 221 and the second power supply element 222 not being disposed on the same surface. For example, the first power supply element 221 and the second power supply element 222 can be disposed on the upper and lower surfaces of the bracket, respectively. Alternatively, the first power supply element 221 and the second power supply element 222 can be disposed on different surfaces of the multiple dielectric layers included in the PCB. Alternatively, the first power supply element 221 and the second power supply element 222 can be disposed on the bracket surface and the PCB surface, respectively, or on the inner surface of the back cover and the bracket surface, respectively.

[0444] In one embodiment, the frame 11 may include a first side and a second side that intersect at an angle, with a first position 201 located on the first side and a second position 202 located on the second side. The length of the radiator 210 on the first side is greater than or equal to three-quarters of the length of the radiator 210, so that the antenna 200 has better radiation characteristics.

[0445] Figure 50 and Figure 51 yes Figure 49 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 50 yes Figure 49 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 51 yes Figure 49 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0446] like Figure 50 As shown, the first antenna (S11) can resonate near 5.1 GHz and 5.7 GHz, which can correspond to the first resonance and the second resonance in the above embodiments, respectively. The second antenna (S22) can resonate near 3.3 GHz and 3.9 GHz, which can correspond to the third resonance and the fourth resonance in the above embodiments, respectively.

[0447] The first and second resonances are generated by the slot DM mode, and the third and fourth resonances are generated by the slot CM mode. Therefore, the first and second antennas also have good isolation. With S11 / S22 < -4dB as the boundary, the isolation (S12) between the first and second antennas is less than -11dB within their respective resonant frequency bands.

[0448] like Figure 51 As shown, both the third and fourth resonances are generated by the slotted CM mode. Since the slotted CM mode has higher radiation and system efficiency, the second antenna does not produce craters within the operating frequency bands where the third and fourth resonances form, exhibiting good radiation and system efficiency. Conversely, both the first and second resonances are generated by the slotted DM mode. Because the radiation and system efficiency of the slotted DM mode intersects with that of the slotted CM mode is lower, the second antenna has higher radiation and system efficiency than the first antenna.

[0449] Figure 52 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0450] like Figure 52 As shown, the electronic device 10 includes a frame 11, an antenna 200, and a floor 300.

[0451] At least a portion of the frame 11 is spaced apart from the floor 300. The frame 11 includes a first position 201 and a second position 202. The frame 11 has a first gap and a second gap respectively at the first position 201 and the second position 202, and a grounding point is included between the first position 201 and the second position 202. The frame 11 is coupled to the floor 300 at the grounding point. In one embodiment, the grounding point is located in the central region between the first position 201 and the second position 202.

[0452] In one embodiment, the grounding point is coupled to the floor 300 to achieve grounding. At the grounding point, the frame 11 can be directly electrically connected to the floor 300 via a spring clip, an inductor, or a structural member of the mid-frame (e.g., a connecting rib). Electrical connection to the floor 300 via a structural member of the mid-frame can be understood as at least a portion of the frame 11 being an integral structure with the floor 300.

[0453] In one embodiment, the grounding point can be electrically connected to the floor 300 via a grounding element (e.g., spring clip, connecting rod). The width of the grounding element connected to the frame 11 is greater than or equal to 1 mm and less than or equal to 10 mm.

[0454] Antenna 200 includes a radiator 210 and a feed element 221. The radiator 210 and the feed element 221 are spaced apart and at least partially overlap along a first direction perpendicular to the extension direction of the radiator 210 (e.g., the y-direction). The extension direction of the radiator 210 is the same as the extension direction of the feed element 221. The radiator 210 is the conductive portion of the frame 11 between a first position 201 and a second position 202. The first and second ends of the radiator 210 are open ends, corresponding to the first position 201 and the second position 202 of the frame 11, respectively. The first and second ends of the feed element 221 are grounded ends.

[0455] The fact that the extension direction of the radiator 210 is in the same direction as the extension direction of the feeder 221 can be understood as the angle between the extension direction of the radiator 210 and the extension direction of the feeder 221 being less than or equal to a first threshold, for example, less than or equal to 10°.

[0456] In one embodiment, the first and second ends of the power supply component 221 are coupled to the ground plane 300 to achieve grounding. Specifically, the power supply component 221 can be electrically connected to the ground plane 300 at the first and second ends via a spring contact, or via an inductor.

[0457] The radiator 210 and the feeder 221 are spaced apart, which can be understood as the radiator 210 and the feeder 221 not being directly connected and forming a gap. In the embodiments of this application, the spaced arrangement can be understood accordingly. The radiator 210 and the feeder 221 are coupled through this gap.

[0458] Antenna 200 also includes a feeding circuit 231, and feeding element 221 includes a feeding point 211. The feeding circuit 231 is coupled to the feeding point 211.

[0459] The power supply element 221 and the radiator 210 are used to generate a first resonance and a second resonance. In one embodiment, the first resonance and the second resonance are used to jointly support an operating frequency band of the electronic device 10.

[0460] The electronic device 10 operates in a frequency band that includes a frequency range, such as the low band (LB) (698MHz-960MHz), the middle band (MB) (1710MHz-2170MHz), or the high band (HB) (2300MHz-2690MHz) in a cellular network. Taking LB (698MHz-960MHz) as an example, this operating frequency band can include multiple communication bands within that frequency range, such as B5, B8, etc., all of which can be understood accordingly in this embodiment.

[0461] It should be understood that the radiator 210 can be formed into a radiator structure consistent with a line antenna, for example, the line antenna can be a T-antenna or a T-shaped antenna. When an electrical signal is fed into the feed circuit 231, the antenna 200 can generate a first resonance and a second resonance through the radiator 210 and the feed element 221. In the electronic device 10, the radiation environment of the feed element 221 is worse than that of the radiator 210 (which is the conductive portion in the frame 11). (e.g., poor clearance, closer proximity to adjacent metal components). However, the feed element 221 can generate a new current path for the radiator 210, thereby generating a new resonance (e.g., a second resonance) to extend the operating bandwidth of the antenna 200.

[0462] Meanwhile, since the first and second ends of the radiator 210 are open, the region near the first and second ends of the radiator 210 has a strong electric field and a weak current. Conversely, the first and second ends of the feed element 221 are grounded, and the region near the first and second ends of the feed element 221 has a weak electric field and a strong current. The proximity of the region with a strong electric field (strong magnetic field) of the radiator 210 to the region with a weak electric field (strong magnetic field) of the feed element 221 allows for a more balanced first and second resonance. This prevents a dip in radiation efficiency in the first operating frequency band supported by both the first and second resonances, thereby improving the radiation characteristics of the antenna 200 and giving the electronic device 10 better communication performance.

[0463] In one embodiment, the first and second resonators can be close to each other so that they jointly support an operating frequency band of the electronic device 10. In one embodiment, the frequency difference between the first and second resonators is in the range of 5% to 20% (greater than or equal to 5% and less than or equal to 20%) of the low-frequency or high-frequency resonant point. In one embodiment, in the low-frequency band (less than or equal to 1 GHz, e.g., 698 MHz-960 MHz), the frequency difference between the resonant point frequency of the first resonator and / or the resonant point frequency of the second resonator is greater than or equal to 50 and less than or equal to 160 MHz. In the mid-frequency band (in the range of 1 GHz-2 GHz, e.g., 1710 MHz-2170 MHz), the frequency difference between the resonant point frequency of the first resonator and / or the resonant point frequency of the second resonator is greater than or equal to 120 MHz and less than or equal to 300 MHz. In the high-frequency band (within the range of 2GHz-3GHz, for example, 2300MHz-2690MHz), the frequency difference between the resonant frequency of the first resonance and / or the resonant frequency of the second resonance is greater than or equal to 160MHz and less than or equal to 500MHz.

[0464] In one embodiment, at the resonant point of the first resonance, the currents on the first radiators 210 on both sides of the grounding point are reversed, and reverse currents are distributed on the radiators 210 on both sides of the grounding point (or, the radiators have current reversal points). At the resonant point of the second resonance, the currents on the first radiators 210 on both sides of the grounding point are reversed, and reverse currents are distributed on the radiators 210 on both sides of the grounding point (or, the radiators have current reversal points).

[0465] It should be understood that both the first and second resonances can be generated by the linear CM mode. Since the linear CM mode has high radiation efficiency and system efficiency, the antenna has good radiation efficiency and system efficiency within the operating frequency band formed by the first and second resonances.

[0466] In one embodiment, at the resonant points of the first resonance and the second resonance, the currents on both sides of the center of the feeder 221 are reversed.

[0467] It should be understood that the current on the feeder 221 can be generated by the slot DM mode. The radiator 210 generates a co-current through co-current coupling on the feeder 221, thereby generating a second resonance.

[0468] In one embodiment, the feed element 221 includes a connection point 241. The antenna 200 may also include an electronic component 242. A first end of the electronic component 242 is coupled to the connection point 241, and a second end of the electronic component 242 is coupled to the ground plane 300.

[0469] It should be understood that electronic component 242 can be used to adjust the resonant frequency of the second resonance so that the first and second resonances can jointly support an operating frequency band of electronic device 10.

[0470] In one embodiment, the ratio of the length of the overlapping portion of the projection of the power supply element 221 on the frame 11 and the radiator 210 to the length of the radiator 210 is greater than or equal to 25%. In another embodiment, the ratio of the length of the overlapping portion of the projection of the power supply element 221 on the frame 11 and the radiator 210 to the length of the radiator 210 is greater than or equal to 50%.

[0471] In one embodiment, the ratio of the length of the overlapping portion of the feeder 221 and the radiator 210 along the first direction (the overlap between the projection of the feeder 221 on the frame 11 and the radiator 210) to the length of the feeder 221 is greater than or equal to 50%. In another embodiment, the ratio of the length of the overlapping portion of the feeder 221 and the radiator 210 along the first direction (the overlap between the projection of the feeder 221 on the frame 11 and the radiator 210) to the length of the feeder 221 is greater than or equal to 75%.

[0472] It should be understood that when the ratio of the projected length to the length of the feed element 221 (or the ratio of the projected length to the length of the radiator 210) is within the aforementioned range, the radiator 210 can be better excited, and the antenna 200 has better radiation characteristics. When the first position 201 and the second position 202 are respectively located on the first and second sides of the frame that intersect at an angle, the extension direction of the radiator 210 includes the extension direction of the first side (e.g., the x-direction) and the extension direction of the second side (e.g., the y-direction). The length of the overlapping portion can be understood as the sum of the length of the overlapping portion in the extension direction of the first side (e.g., the x-direction) and the length of the overlapping portion in the extension direction of the second side (e.g., the y-direction).

[0473] In one embodiment, the lengths of the radiators on both sides of the grounding point are approximately the same, and the ratio of the lengths of the radiators on both sides of the grounding point (the length of the conductor portion of the frame between the first position 201 and the grounding point, and the length of the conductor portion of the frame between the second position 202 and the grounding point) is greater than or equal to 0.7 and less than or equal to 1.3.

[0474] It should be understood that when the lengths of the radiators on both sides of the grounding point are approximately the same, the structure of the antenna 200 is more symmetrical. With the increase of the symmetry of the antenna 200, the line CM mode can be better excited, so that the antenna 200 can have better radiation characteristics (e.g., bandwidth, radiation efficiency, etc.) at the first and second resonances.

[0475] In one embodiment, the distance between the projection of the grounding point on the feeder 221 and the center of the feeder 221 is less than or equal to one-quarter of the length of the feeder 221. In another embodiment, the projection of the grounding point on the feeder 221 is in the central region of the feeder 221.

[0476] It should be understood that when the feed element 221 is approximately aligned with the radiator 210, the structure of the antenna 200 is more symmetrical. With the increase in the symmetry of the antenna 200, the slot CM mode can be better excited, thereby enabling the antenna 200 to have better radiation characteristics (e.g., bandwidth, radiation efficiency, etc.) at the first and second resonances. The alignment of the feed element 221 with the radiator 210 can be understood as the first radiator 210 being symmetrical along the virtual axis of the feed element 221, with the feed elements 221 on both sides of the virtual axis having the same length.

[0477] Meanwhile, the radiator 210 has a weaker electric field and a stronger current in the vicinity of the grounding point. The feeder 221 has a weaker current and a stronger electric field in the vicinity of its center. The proximity of the region of the radiator 210 with a weaker electric field (stronger magnetic field) (the grounding point) and the region of the feeder 221 with a stronger electric field (stronger magnetic field) (the midpoint) allows for a more balanced first and second resonance.

[0478] In one embodiment, the projection of the power supply element 221 onto the frame 11 completely overlaps with the radiator 210. In one embodiment, the ratio of the lengths of the radiators on both sides of the grounding point is greater than or equal to 0.9 and less than or equal to 1.1. In one embodiment, the two ends of the power supply element 221 are coupled to the ground 300 in the same way (e.g., both the first and second ends of the power supply element 221 are coupled to the ground 300 via inductance, or via connecting rods). In one embodiment, the projection of the grounding point onto the power supply element 221 coincides with the center of the power supply element 221.

[0479] In one embodiment, the projection of the power supply element 221 onto the frame 11 is located between the first position 201 and the second position 202.

[0480] It should be understood that the increased symmetry of antenna 200 can better excite the slot CM mode, thereby enabling antenna 200 to have better radiation characteristics (e.g., bandwidth, radiation efficiency, etc.) at the first and second resonances.

[0481] In one embodiment, both ends of the power supply 221 are grounded terminals, and the electrical length of the radiator 210 is the same as that of the power supply 221, which is half of the first wavelength. The first wavelength is the wavelength corresponding to the center frequency between the resonant point of the first resonance and the resonant point of the second resonance.

[0482] In one embodiment, the electrical length of the radiator 210 is approximately the same as the electrical length of the feeder 221. In another embodiment, the physical length of the radiator 210 is approximately the same as the physical length of the feeder 221. Since the electronic components coupled to the feeder 221 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L2 of the feeder 221 satisfy: L1×50%≤L2≤L1. In another embodiment, the physical length L1 of the radiator 210 and the physical length L2 of the feeder 221 satisfy: L1≤L2≤L1×150%.

[0483] In one embodiment, the physical length L1 of the radiator 210 can be understood as the length of the conductive portion of the frame between the first position 201 and the second position 202, for example, the sum of the physical lengths of the radiator 210 on both sides of the grounding point.

[0484] In one embodiment, the distance D between the power supply element 221 and the radiator 210 is less than or equal to 5 mm to ensure good coupling characteristics between them. In another embodiment, the distance D between the power supply element 221 and the radiator 210 is less than or equal to 2 mm.

[0485] It should be understood that the distance D between the feeder 221 and the radiator 210 can be understood as the minimum distance between a point on the feeder 221 and a point on the radiator 210.

[0486] In one embodiment, the electronic device 10 may further include a bracket. A power supply component 221 may be disposed on the surface of the bracket, and at least a portion of the bracket may be disposed between the PCB and the back cover for supporting the power supply component 221. A metal layer in the PCB may serve as the floor 300 in this embodiment, or the floor may be the mid-frame of the electronic device or other metal layers.

[0487] In one embodiment, the power supply element on the bracket may be located above the PCB. For example, the projection of the power supply element 221 in the direction perpendicular to the PCB completely overlaps with the PCB. In one embodiment, the power supply element 221 on the bracket may be located at the edge of the PCB. For example, the projection of the power supply element 221 in the first direction partially overlaps with the PCB. In one embodiment, the power supply element 221 on the bracket may be located above a cutout area of ​​the PCB or above the gap between the PCB and the frame. For example, the projection of the power supply element 221 in the direction perpendicular to the PCB does not overlap with the PCB.

[0488] In one embodiment, the distance H1 between the bracket and the PCB can be greater than or equal to 0.1 mm and less than or equal to 3 mm. In another embodiment, the distance H2 between the bracket and the back cover can be greater than or equal to 0.1 mm and less than or equal to 1 mm.

[0489] In one embodiment, the power supply component 221 may be disposed on the surface of the back cover (e.g., the surface facing the PCB). In another embodiment, the power supply component 221 may also be disposed on the surface of the PCB. The embodiments of this application do not limit the placement of the power supply component 221.

[0490] It should be understood that, for the sake of brevity, in Figure 52 In the illustrated technical solution, the conductive portion of the frame 11 is used as the radiator 210 and the power supply component 221 is a non-frame structure (e.g., disposed on a bracket, PCB, or back cover). In actual production or design, the relative positions of the radiator 210 and the power supply component 221 can be interchanged. For example, the conductive portion of the frame 11 can be used as the power supply component 221 and the radiator 210 can be a non-frame structure (e.g., disposed on a bracket, PCB, or back cover).

[0491] In one embodiment, the power supply element 221 is strip-shaped. "Strip-shaped" can be understood as having a length much greater than its width, for example, a length greater than three times, or six times, its width. In one embodiment, the smallest dimension of the power supply element 221 is its thickness; for example, when the power supply element 221 can be disposed on the surface of the bracket 140, the dimension in the direction perpendicular to the surface of the bracket 140 is the thickness. The dimensions of the power supply element 221 other than its thickness can be understood as its length and width.

[0492] In one embodiment, the width of the power supply element 221 may be less than or equal to 3 mm. In another embodiment, the width of the power supply element 221 may be less than or equal to 2 mm.

[0493] Figure 53 and Figure 54 yes Figure 52 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 53 yes Figure 52 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 54 yes Figure 52 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0494] like Figure 53 As shown, antenna 200 can resonate around 1.9 GHz and 2.2 GHz. The resonance around 1.8 GHz corresponds to the first resonance in the above embodiment, and the resonance around 2.2 GHz corresponds to the second resonance in the above embodiment.

[0495] like Figure 54 As shown, both the first and second resonances can be generated by the linear CM mode. Since the linear CM mode has high radiation and system efficiency, the antenna will not produce a dip within the operating frequency band where the first and second resonances form, thus exhibiting good radiation and system efficiency. Taking a system efficiency > -2dB as an example, the system efficiency bandwidth of antenna 200 is approximately 500MHz.

[0496] Figure 55 and Figure 56 yes Figure 52 A schematic diagram showing the current and electric field distribution of the antenna 200 in the electronic device 10. Wherein, Figure 55 yes Figure 52 The diagram shows the current distribution of the antenna at the first resonance point (1.88 GHz). Figure 56 yes Figure 52 The diagram shows the current distribution of the antenna at the second resonance point (2.16 GHz).

[0497] like Figure 55As shown, the currents on the first radiators 210 on both sides of the grounding point are in opposite directions, and the currents on both sides of the center of the feeder are in opposite directions. The current distribution on the radiators conforms to the current characteristics of the line CM mode. The current distribution on the feeder conforms to the current characteristics of the slot DM mode.

[0498] like Figure 56 As shown, the currents on the first radiators 210 on both sides of the grounding point are in opposite directions, and the currents on both sides of the center of the feeder are in opposite directions. The current distribution on the radiators conforms to the current characteristics of the line CM mode. The current distribution on the feeder conforms to the current characteristics of the slot DM mode.

[0499] Figure 57 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0500] like Figure 57 As shown, the first and second ends of the power supply component 221 are grounded. The power supply component 221 may have a third gap. In one embodiment, the third gap may be located in the central region of the power supply component 221.

[0501] In one embodiment, the lengths of the feeders 221 on both sides of the third gap are approximately the same. In another embodiment, the difference in length of the feeders 221 on both sides of the third gap can be understood as the difference in length between the feeders 221 on both sides of the third gap being less than or equal to 5 mm.

[0502] It should be understood that Figure 57 The antenna 200 shown is Figure 52 The difference in the antenna 200 shown is that the feed element 221 also includes a third slot.

[0503] For the sake of brevity, Figure 57 The antenna 200 shown is Figure 52 Similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include the position of the radiator 210 and its positional relationship with the feed element 221; the feed element 221 and the radiator 210 used to generate a first resonance and a second resonance; the first resonance and the second resonance can be used to jointly support an operating frequency band; the position and width of the first slot; the boundary conditions of the feed element 221 (open end or ground end); the shape of the feed element 221, for example, it is strip-shaped; the position where the feed element 221 is located; and so on.

[0504] Figure 57 In the antenna 200 shown, the feed element 221 can simultaneously have both slot DM mode and slot CM mode. When an electrical signal is fed into the feed circuit 231, the antenna 200 can generate a first resonance, a second resonance, a third resonance, and a fourth resonance to extend the operating bandwidth of the antenna 200.

[0505] In one embodiment, the first and second resonances may correspond to the line CM mode, and the third and fourth resonances may correspond to the line DM mode.

[0506] In one embodiment, at the resonant point of the first resonance, the currents on the radiators 210 on both sides of the grounding point are reversed, and each of the radiators 210 on both sides of the grounding point has a reverse current (or, the radiators have a current reversal point). At the resonant point of the second resonance, the currents on the radiators 210 on both sides of the grounding point are reversed, and each of the radiators 210 on both sides of the grounding point has a reverse current (or, the radiators have a current reversal point).

[0507] In one embodiment, at the resonant point of the third resonance, the currents on the radiators 210 on both sides of the grounding point are in the same direction, and the radiators 210 on both sides of the grounding point each have currents in the same direction (or, there are no points on the radiators where the currents are reversed). At the resonant point of the fourth resonance, the currents on the radiators 210 on both sides of the grounding point are in the same direction, and the radiators 210 on both sides of the grounding point each have currents in the same direction (or, there are no points on the radiators where the currents are reversed).

[0508] In one embodiment, the power supply point 211 may be located on the first side of the second gap (between the second gap and the first end of the power supply component 221), and a first capacitor may be provided between the power supply circuit 231 and the power supply component 221. In one embodiment, the capacitance value of the first capacitor is less than or equal to 1.5pF.

[0509] In one embodiment, the power supply 221 may include a connection point 241 on the second side of the second gap (between the second gap and the second end of the power supply 221). The first end of the second capacitor is coupled to the connection point, and the second end of the second capacitor is coupled to the ground 300.

[0510] Figure 58 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0511] like Figure 58 As shown, the first end of the power supply component 221 is a grounded end and the second end is an open end. The first end of the power supply component 221 is coupled to the ground 300.

[0512] In one embodiment, the distance between the end of the first end of the feed point 211 and the feed element 221 is different from the distance between the end of the second end of the feed point 211 and the feed element 221, and the feed element 221 can feed the electrical signal in an offset manner.

[0513] In one embodiment, the distance between the feed point 211 and the end of the first end of the feed element 221 is less than half the length of the feed element 221. The feed element 221 can be formed into a structure similar to a monopole or left-handed antenna.

[0514] It should be understood that Figure 58 The antenna 200 shown is Figure 52 The difference in the antenna 200 shown includes that the second end of the feed element 221 is an open end. Figure 52 In the antenna 200 shown, the first and second ends of the feed element 221 are grounded, and the feed element 221 forms a radiating structure of a coincident slot antenna. Figure 58 In the antenna 200 shown, the first end of the feed element 221 is a grounded end, and the second end is an open end. The feed element 221 can be configured to resemble a left-handed antenna. When an electrical signal is fed into the feed point, a current in the same direction can also be generated on the radiator 210, similar to... Figure 52 The current on the feed element 221 shown can also excite the radiator 210 to generate a second resonance. Furthermore, since the first end of the feed element 221 is a grounded end and the second end is an open end, the size of the feed element 221 can be further reduced, achieving miniaturization.

[0515] In one embodiment, the distance between the projection of the grounding point on the feeder 221 and the open end (second end) of the feeder 221 is less than or equal to half the length of the feeder 221. In another embodiment, the distance between the projection of the open end (end of the second end) of the feeder 221 on the frame 11 and the grounding point is less than or equal to one-quarter the length of the radiator 210.

[0516] It should be understood that the radiator 210 has a weak electric field and a strong current in the region near the grounding point. The feeder 221 has a weak current and a strong electric field in the region near its open end. The proximity of the region with a weaker electric field (stronger magnetic field) of the radiator 210 (the grounding point) and the region with a stronger electric field (stronger magnetic field) of the feeder 221 (the open end) can make the first and second resonances more balanced.

[0517] In one embodiment, the projection of the power supply element 221 onto the frame 11 is located between a first position and a second position.

[0518] In one embodiment, the ratio of the length of the overlapping portion of the projection of the power supply element 221 on the frame 11 and the radiator 210 to the length of the radiator 210 is greater than or equal to 12.5%. In another embodiment, the ratio of the length of the overlapping portion of the projection of the power supply element 221 on the frame 11 and the radiator 210 to the length of the radiator 210 is greater than or equal to 25%.

[0519] In one embodiment, the ratio of the length of the overlapping portion of the feeder 221 and the radiator 210 along the first direction (the overlapping portion of the projection of the feeder 221 on the frame 11 and the radiator 210) to the length of the feeder 221 is greater than or equal to 50%.

[0520] In one embodiment, the electrical length of the feed element 221 is one-quarter of the first wavelength, and the electrical length of the radiator 210 is half of the first wavelength. The first wavelength is the wavelength corresponding to the center frequency between the resonant point of the first resonance and the resonant point of the second resonance.

[0521] In one embodiment, the electrical length of the feed element 221 is half the electrical length of the radiator 210; correspondingly, the physical length of the feed element 221 is approximately half the physical length of the radiator 210. Since the electronic components coupled to the feed element 221 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L2 of the feed element 221 satisfy: L1×25% ≤ L2 ≤ L1×50%. In another embodiment, the physical length L1 of the radiator 210 and the physical length L2 of the feed element 221 satisfy: L1×50% ≤ L2 ≤ L1×75%.

[0522] For the sake of brevity, Figure 58 The antenna 200 shown is Figure 9 The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include the feed element 221 and the radiator 210 for generating a first resonance and a second resonance, which together support an operating frequency band; the location and width of the first slot; the shape of the feed element 221, for example, a strip shape; and the location of the feed element 221.

[0523] It should be understood that the antenna 200 shown in the above embodiments (e.g., Figure 52 The power supply components shown in the figure can all adopt a structure in which the first end is a ground end and the second end is an open end to reduce the size. This application does not limit this.

[0524] Figure 59 and Figure 60 yes Figure 58 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 59 yes Figure 58 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 60 yes Figure 58 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0525] like Figure 59 As shown, compared to Figure 52 The antenna shown Figure 58 The antenna shown can also resonate around 1.9 GHz and 2.2 GHz (because the resonant frequencies of the two resonators are close, they combine into one resonant). However, due to... Figure 58The antenna shown has a grounded first end and an open second end in the feed component. The antenna structure has poor symmetry, resulting in a narrow operating bandwidth. Furthermore, it enhances the excitation of the DM mode near 2.6 GHz.

[0526] like Figure 60 As shown, the antenna does not produce a dent within the operating frequency band formed by the first and second resonances, exhibiting good radiation efficiency and system efficiency.

[0527] Figure 61 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0528] It should be understood that in the above embodiments, it is not shown whether a matching circuit is provided between the feed circuit 231 and the feed element 221. In actual applications, a matching circuit can be provided between the feed circuit 231 and the feed element 221 to adjust the radiation characteristics of the antenna 200 (e.g., the resonant frequency of the resonant point).

[0529] In one embodiment, when the first and second ends of the power supply 221 are grounded (e.g.) Figure 52 As shown), a capacitor or inductor can be provided between the power supply circuit 231 and the power supply component 221, such as... Figure 61 As shown in (a) or (b) in the text.

[0530] In one embodiment, when the first terminal of the power supply 221 is grounded and the second terminal is open (e.g.) Figure 58 As shown), a capacitor can be installed between the power supply circuit 231 and the power supply component 221, such as... Figure 61 As shown in (c) in the figure.

[0531] It should be understood that the capacitors and inductors mentioned above are only used as examples. In practical applications, they can also be replaced by circuits formed by cascading multiple capacitors and inductors. The values ​​of capacitors and inductors can be determined according to actual production or design.

[0532] Figure 62 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0533] like Figure 62 As shown, the frame 11 includes a first position 201, a second position 202, and a third position 203 arranged sequentially, with the second position 202 located between the first position 201 and the third position 203. The frame 11 has a first gap and a second gap respectively at the first position 201 and the second position 202. The frame 11 also includes a grounding point located between the first position 201 and the second position 202, where the frame 11 is coupled to the floor 300. The frame 11 is coupled to the floor 300 at the third position 203. In one embodiment, the grounding point is located in the central region between the first position 201 and the second position 202.

[0534] The radiator 210 is the conductive portion of the frame 11 between the first position 201 and the second position 202. The conductive portion of the frame 11 between the second position 202 and the third position 203 is a parasitic branch.

[0535] It should be understood that Figure 62 The antenna 200 shown is Figure 52 The antenna 200 shown is distinguished by its parasitic stubs. The radiator 210 (the conductive portion between the first position 201 and the second position 202) can form a radiator structure that conforms to a line antenna, generating the first and second resonances as described above in the line CM mode. The parasitic stubs and a portion of the radiator (the conductive portion between the ground point and the third position 203) can form a radiator structure that conforms to a slot antenna, generating the fifth resonance in the slot DM mode. In one embodiment, the currents on the first radiator 210 on both sides of the second slot are reversed.

[0536] In one embodiment, in the low-frequency band (less than or equal to 1 GHz, e.g., 698 MHz–960 MHz), the frequency difference between the resonant frequency of the fifth resonance and the resonant frequency of the first or second resonance is greater than or equal to 50 MHz and less than or equal to 160 MHz. In the mid-frequency band (in the range of 1 GHz–2 GHz, e.g., 1710 MHz–2170 MHz), the frequency difference between the resonant frequency of the fifth resonance and the resonant frequency of the first or second resonance is greater than or equal to 120 MHz and less than or equal to 300 MHz. In the high-frequency band (in the range of 2 GHz–3 GHz, e.g., 2300 MHz–2690 MHz), the frequency difference between the resonant frequency of the fifth resonance and the resonant frequency of the first or second resonance is greater than or equal to 160 MHz and less than or equal to 500 MHz.

[0537] For the sake of brevity, Figure 62 The antenna 200 shown is Figure 52 , Figure 57 , Figure 58 , Figure 60 , Figure 61 The similar parts of the antenna 200 shown will not be described in detail, such as the positional relationship between the radiator 210 and the feed element 221; the location of the grounding point; and the shape of the feed element 221, for example, it is strip-shaped.

[0538] In one embodiment, the distance between the second position 202 and the third position 203 is greater than or equal to one-third and less than or equal to two-thirds of the distance between the first position 201 and the second position 202.

[0539] It should be understood that, Figure 62In the illustrated technical solution, the first radiator 210 is extended to the third position 203 of the frame 11 and grounded at the third position 203. The conductive portion between the grounding point and the grounding point at the third position 203 can be used to form a radiator structure that conforms to an open slot antenna, generating a fifth resonance from the slot DM mode. This technical solution can be applied to the above-mentioned... Figures 52 to 60 In any of the embodiments shown.

[0540] In one embodiment, Figure 62 The technical solution shown can be applied to Figure 58 In the antenna 200 shown, such as Figure 63 As shown.

[0541] exist Figure 63 In the antenna 200 shown, the first end of the feed element 221 is an open end and the second end is a ground end. The feed element 221 can be formed into a structure similar to a monopole or a left-handed antenna. The feed element 221 with this structure can also excite the antenna 200 to generate the first resonance, the second resonance and the fifth resonance mentioned above.

[0542] Figure 64 and Figure 65 yes Figure 62 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 64 yes Figure 62 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 65 yes Figure 62 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0543] like Figure 64 As shown, in the 1.8GHz to 3GHz range, compared to Figure 52 The antenna shown Figure 62 The antenna shown can generate an additional fifth resonance near 2.7 GHz, with an operating bandwidth greater than [missing value], provided that S11 is less than -4 dB. Figure 52 The antenna shown has a working bandwidth.

[0544] like Figure 65 As shown, no efficiency dips are generated near the fifth resonance that the antenna can generate additionally. The antenna has good radiation efficiency and system efficiency within the operating frequency band formed by the first, second, and fifth resonances.

[0545] Figure 66 This is a schematic diagram of another electronic device 10 provided in an embodiment of this application.

[0546] like Figure 66As shown, the frame 11 has a first gap at the first position 201 and is coupled to the floor 300 at the second position 202. The radiator 210 has an open end at the first end and a grounded end at the second end. The first and second ends of the radiator 210 correspond to the first position 201 and the second position 202 of the frame 11, respectively. The power supply component 221 has a grounded end at the first end and the second end.

[0547] In one embodiment, the ratio of the length of the overlapping portion of the projection of the power supply element 221 on the frame 11 and the radiator 210 to the length of the radiator 210 is greater than or equal to 50%.

[0548] In one embodiment, the ratio of the length of the overlapping portion of the feeder 221 and the radiator 210 along the first direction (the overlap between the projection of the feeder 221 on the frame 11 and the radiator 210) to the length of the feeder 221 is greater than or equal to 20%. In another embodiment, the ratio of the length of the overlapping portion of the feeder 221 and the radiator 210 along the first direction (the overlap between the projection of the feeder 221 on the frame 11 and the radiator 210) to the length of the feeder 221 is greater than or equal to 30%.

[0549] In one embodiment, the projection of the power supply element 221 onto the frame 11 covers the second position 202.

[0550] It should be understood that, in the embodiments of this application, "coverage" can be understood as the area of ​​the frame occupied by the projection of the power supply element 221 on the frame 11 including the second position 202. For example... Figure 66 As shown, the projection of the power supply component 221 onto the frame 11 is L-shaped, and the L-shaped region includes the second position 202.

[0551] In one embodiment, the distance between the projection of the second position 202 onto the feeder 221 and the midpoint of the feeder 221 is less than or equal to one-quarter of the length of the feeder 221. In another embodiment, the projection of the second position 202 onto the feeder 221 is in the central region of the feeder 221.

[0552] Specifically, when the second position 202 is located in the boundary area between the two sides of the frame 11 (for example, the boundary area can be understood as when the second position 202 is located on the first side, the distance between the second position 202 and the second side along the extension direction of the first side is less than or equal to 10mm. Alternatively, the boundary area can also be understood as the arc-shaped area where the first side and the second side intersect), the projection of the second position 202 on the power supply component 221 can be understood as the projection of the second position 202 on the power supply component 221 along the tangent direction of the boundary area.

[0553] It should be understood that the radiator 210 has a weaker electric field and a stronger current in the region near the second position 202. The feeder 221 has a weaker current and a stronger electric field in the region near its center. The proximity of the region with a weaker electric field (stronger magnetic field) of the radiator 210 (second position 202) to the region with a stronger electric field (stronger magnetic field) of the feeder 221 (midpoint) allows for a more balanced first and second resonance.

[0554] It should be understood that Figure 66 The difference between the antenna 200 shown and the antenna 200 shown in the above embodiment is that the second end of the radiator 210 is a ground end.

[0555] In the above Figures 52 to 65 In the antenna 200 shown, the first and second ends of the radiator 210 are open ends, and the radiator 210 can form a radiator structure of a coincident antenna. Figure 66 In the antenna 200 shown, the first end of the radiator 210 is an open end and the second end is a grounded end. When an electrical signal is fed into the feed point, a current in the same direction can be generated on the radiator 210, which can also excite the radiator 210 to generate a first resonance and a second resonance. Furthermore, since the first end of the radiator 210 is an open end and the second end is a grounded end, the size of the radiator 210 can be further reduced (for example, it can be regarded as a reduction from a half-wavelength structure to a quarter-wavelength structure), achieving miniaturization.

[0556] In one embodiment, the electrical length of the radiator 210 is one-quarter of the first wavelength, and the electrical length of the feeder 221 is half of the first wavelength. The first wavelength is the wavelength corresponding to the center frequency between the resonant point of the first resonance and the resonant point of the second resonance.

[0557] In one embodiment, the electrical length of the radiator 210 is half the electrical length of the feeder 221; correspondingly, the physical length of the radiator 210 is approximately half the physical length of the feeder 221. Since the electronic components coupled to the feeder 221 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L2 of the feeder 221 satisfy: L1×100% ≤ L2 ≤ L1×200%. In another embodiment, the physical length L1 of the radiator 210 and the physical length L2 of the feeder 221 satisfy: L1×200% ≤ L2 ≤ L1×300%.

[0558] For the sake of brevity, Figure 66 The antenna 200 shown is the same as the one described above. Figures 52 to 65The similar parts of the antenna 200 shown will not be described in detail. For example, similar parts include the radiator 210 and the feed element 221 for generating a first resonance and a second resonance; the first resonance and the second resonance can be used to jointly support an operating frequency band; the width of the first slot; the shape of the feed element 221, for example, it is strip-shaped; the position of the feed element 221, etc.

[0559] Figure 67 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0560] like Figure 67 As shown, the frame 11 includes a first position 201 and a second position 202. The frame 11 has a first gap and a second gap respectively at the first position 201 and the second position 202. A grounding point is included between the first position 201 and the second position 202, and the frame 11 is coupled to the floor 300 at the grounding point. In one embodiment, the grounding point is located in the central region between the first position 201 and the second position 202.

[0561] Antenna 200 may include a first feed element 221, a second feed element 222, and a radiator 210.

[0562] The radiator 210 is the conductive portion of the frame 11 between the first position 201 and the second position 202. The first and second ends of the radiator 210 are open ends.

[0563] The first feed element 221, the second feed element 222, and the radiator 210 are arranged at intervals between each other. The radiator 210 and the first feed element 221...

[0564] The second feed element 222 at least partially overlaps with the first direction, which is perpendicular to the extension direction of the first radiator 210 (e.g., the y-direction). The extension direction of the first radiator 210 is the same as the extension direction of the first feed element 221. The first and second ends of the first feed element 221 are grounded. The first and second ends of the second feed element 222 are open.

[0565] The antenna 200 also includes a first feed circuit 231 and a second feed circuit 232. The first feed element 221 includes a first feed point, and the first feed circuit 231 is coupled to the first feed point. The second feed element 222 includes a second feed point 213, and the second feed circuit 232 is coupled to the second feed point 213.

[0566] It should be understood that in the above embodiments, the description is based on the example of a one-to-one correspondence between the radiator and the feeder. Figure 67 In the embodiment shown, the radiator can be excited by two feed elements to generate resonance, thereby expanding the bandwidth while reducing the size of the antenna 200.

[0567] Antenna 200 may include a first antenna and a second antenna. Radiator 210 and first feed element 221 may form the first antenna. Radiator 210 and second feed element 222 may form the second antenna.

[0568] In the first antenna, the radiator 210 forms a radiator structure consistent with a linear antenna. An electrical signal is fed in through a first feeding unit, and the radiator 210 can generate a first resonance and a second resonance in a linear CM mode. In one embodiment, the first and second resonances can be used to jointly support a first operating frequency band of the electronic device 10.

[0569] In the second antenna, the radiator 210 forms a radiator structure consistent with a linear antenna. An electrical signal is fed in through a second feeding unit, and the radiator 210 can generate a third and fourth resonance in linear DM mode. In one embodiment, the third and fourth resonances can be used to jointly support a second operating frequency band of the electronic device 10.

[0570] In one embodiment, the first and second resonators can be close to each other so that they jointly support an operating frequency band of the electronic device 10. In one embodiment, the frequency difference between the first and second resonators is in the range of 5% to 20% (greater than or equal to 5% and less than or equal to 20%) of the low-frequency or high-frequency resonant point. In one embodiment, in the low-frequency band (less than or equal to 1 GHz, e.g., 698 MHz-960 MHz), the frequency difference between the resonant point frequency of the first resonator and / or the resonant point frequency of the second resonator is greater than or equal to 50 MHz and less than or equal to 160 MHz. In the mid-frequency band (in the range of 1 GHz-2 GHz, e.g., 1710 MHz-2170 MHz), the frequency difference between the resonant point frequency of the first resonator and / or the resonant point frequency of the second resonator is greater than or equal to 120 MHz and less than or equal to 300 MHz. In the high-frequency band (within the range of 2GHz-3GHz, for example, 2300MHz-2690MHz), the frequency difference between the resonant frequency of the first resonance and / or the resonant frequency of the second resonance is greater than or equal to 160MHz and less than or equal to 500MHz.

[0571] In one embodiment, the third and fourth resonators may be close to each other so that they are used to jointly support an operating frequency band of the electronic device 10. In one embodiment, the frequency difference between the third and fourth resonators is in the range of 5% to 20% (greater than or equal to 5% and less than or equal to 20%) of the low-frequency or high-frequency resonant point. In one embodiment, in the low-frequency band (less than or equal to 1 GHz, e.g., 698 MHz-960 MHz), the frequency difference between the resonant point frequency of the third resonator and / or the resonant point frequency of the fourth resonator is greater than or equal to 20 MHz and less than or equal to 160 MHz. In the mid-frequency band (in the range of 1 GHz-2 GHz, e.g., 1710 MHz-2170 MHz), the frequency difference between the resonant point frequency of the third resonator and / or the resonant point frequency of the fourth resonator is greater than or equal to 120 MHz and less than or equal to 300 MHz. In the high-frequency band (within the range of 2GHz-3GHz, for example, 2300MHz-2690MHz), the frequency difference between the resonant frequency of the third resonance and / or the resonant frequency of the fourth resonance is greater than or equal to 160MHz and less than or equal to 500MHz.

[0572] Due to the good isolation between line CM mode and line DM mode, the mutual interference between the first antenna and the second antenna is minimal. In one embodiment, the first operating frequency band and the second operating frequency band can be the same, and the first antenna and the second antenna can serve as sub-antennas in a MIMO system to improve the communication performance of the electronic device. In another embodiment, the first operating frequency band and the second operating frequency band can be different.

[0573] In one embodiment, at the resonant point of the first resonance, the currents on the radiators 210 on both sides of the ground point are reversed. At the resonant point of the second resonance, the currents on the radiators 210 on both sides of the ground point are reversed.

[0574] In one embodiment, at the resonant points of the first and second resonances, the currents on the first feeders 221 on either side of the center are reversed. It should be understood that the reverse current distribution on the first feeders 221 allows operation in slot DM mode.

[0575] In one embodiment, at the resonant point of the third resonance, the currents on the radiators 210 on both sides of the ground point are in the same direction. At the resonant point of the fourth resonance, the currents on the radiators 210 on both sides of the ground point are in the same direction.

[0576] In one embodiment, at the resonant point of the third resonance, the current in the second feed element 222 is in the same direction. At the resonant point of the fourth resonance, the current in the second feed element 222 is in the same direction. It should be understood that the current in the second feed element 222 is distributed in the same direction, which allows it to operate in line DM mode.

[0577] In one embodiment, both ends of the first feed element 221 are grounded, and the electrical length of the radiator 210 is the same as that of the feed element 221, which is half of the first wavelength. The first wavelength is the wavelength corresponding to the center frequency between the resonant point of the first resonance and the resonant point of the second resonance.

[0578] In one embodiment, the electrical length of the radiator 210 is the same as the electrical length of the first feeder 221, and correspondingly, the physical length of the radiator 210 is approximately the same as the physical length of the first feeder 221. Since the electronic components coupled to the first feeder 221 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L2 of the first feeder 221 satisfy: L1×50%≤L2≤L1. In another embodiment, the physical length L1 of the radiator 210 and the physical length L2 of the first feeder 221 satisfy: L1≤L2≤L1×150%.

[0579] In one embodiment, both ends of the second feed element 222 are open ends, and the electrical length of the radiator 210 is the same as that of the second feed element 222, which is half of the second wavelength. The second wavelength is the wavelength corresponding to the center frequency of the third resonance and the fourth resonance.

[0580] In one embodiment, the electrical length of the radiator 210 is the same as the electrical length of the second feeder 222, and correspondingly, the physical length of the radiator 210 is approximately the same as the physical length of the second feeder 222. Since the electronic components coupled to the second feeder 222 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L3 of the second feeder 222 satisfy: L1×50%≤L3≤L1. In another embodiment, the physical length L1 of the radiator 210 and the physical length L3 of the second feeder 222 satisfy: L1≤L3≤L1×150%.

[0581] In one embodiment, in the electronic device 10, the spacing between the first power supply element 221 and the second power supply element 222 can be understood as the first power supply element 221 and the second power supply element 222 not being disposed on the same surface. For example, the first power supply element 221 and the second power supply element 222 can be disposed on the upper and lower surfaces of the bracket, respectively. Alternatively, the first power supply element 221 and the second power supply element 222 can be disposed on different surfaces of the multiple dielectric layers included in the PCB. Alternatively, the first power supply element 221 and the second power supply element 222 can be disposed on the surface of the bracket and the PCB, respectively.

[0582] Figure 68 and Figure 69 yes Figure 67 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 68yes Figure 67 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 69 yes Figure 67 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0583] like Figure 68 As shown, the first antenna (S11) can resonate near 1.85 GHz and 2.3 GHz, which can correspond to the first resonance and the second resonance in the above embodiments, respectively. The second antenna (S22) can resonate near 2.45 GHz and 2.6 GHz, which can correspond to the third resonance and the fourth resonance in the above embodiments, respectively.

[0584] The first and second resonances are generated by the line CM mode, and the third and fourth resonances are generated by the line DM mode. Therefore, the first and second antennas also have good isolation. Taking S11 / S22 < -4dB as the boundary, the isolation (S12) between the first and second antennas is less than -14dB within their respective resonant frequency bands.

[0585] like Figure 69 As shown, both the first and second resonances are generated by the linear CM mode. Since the linear CM mode has high radiation and system efficiency, the first antenna does not produce dips within the operating frequency band formed by the first and second resonances, exhibiting good radiation and system efficiency. However, the third and fourth resonances are both generated by the linear DM mode. Because the radiation and system efficiency of the linear DM mode intersecting with the linear CM mode is lower, the radiation and system efficiency of the second antenna are lower than those of the first antenna.

[0586] Figure 70 and Figure 71 yes Figure 67 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 70 yes Figure 67 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 71 yes Figure 67 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0587] It should be understood that, Figure 68 and Figure 69 The simulation results shown illustrate this by illustrating that the first operating frequency band formed by the first and second resonances and the second operating frequency band formed by the third and fourth resonances may be different. Figure 70 and Figure 71In the simulation results shown, some parameters can be adjusted to make the first operating frequency band formed by the first resonance and the second resonance the same as the second operating frequency band formed by the third resonance and the fourth resonance. For example, the above parameters can be the position of the first feed point, the position of the second feed point, the spacing between the feed element and the radiator, and the components coupled to the feed element / radiator.

[0588] like Figure 70 As shown, the first antenna (S11) can resonate near 2.3 GHz and 2.6 GHz, which can correspond to the first resonance and the second resonance in the above embodiments, respectively. The second antenna (S22) can resonate near 2.45 GHz and 2.6 GHz, which can correspond to the third resonance and the fourth resonance in the above embodiments, respectively.

[0589] The first and second resonances are generated by the linear CM mode, and the third and fourth resonances are generated by the linear DM mode. Therefore, when the first and second operating frequency bands are the same, the first and second antennas also have good isolation. Taking S11 / S22 < -4dB as the boundary, within their respective resonant frequency bands, the isolation (S12) between the first and second antennas is less than -15dB.

[0590] like Figure 71 As shown, both the first and second resonances are generated by the linear CM mode. Since the linear CM mode has high radiation and system efficiency, the first antenna does not produce dips within the operating frequency band formed by the first and second resonances, exhibiting good radiation and system efficiency. However, the third and fourth resonances are both generated by the linear DM mode. Because the radiation and system efficiency of the linear DM mode intersecting with the linear CM mode is lower, the radiation and system efficiency of the second antenna are lower than those of the first antenna.

[0591] Figure 72 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0592] It should be understood that in the above embodiments, the radiator is described using a half-wavelength mode of CM mode / DM mode as an example. Correspondingly, the operating mode of the feeder is also a half-wavelength mode (both ends of the feeder are grounded / open ends. When one end of the feeder is grounded and the other end is open, the operating mode of the feeder is a quarter-wavelength mode).

[0593] And in Figure 72 In the antenna 200 shown, the first antenna and Figure 67 The first antenna shown is identical. In the first antenna, radiator 210 operates in a half-wavelength mode of the linear CM mode. The second antenna is... Figure 67 The second antenna shown is different, in Figure 72 In the second antenna shown, the radiator 210 can be excited by the second feed element 222 in a three-half wavelength mode. Correspondingly, the third and fourth resonances can be generated by the three-half wavelength modes of the line DM mode.

[0594] Furthermore, when the third and fourth resonances can be generated by the three-half wavelength mode, the operating mode of the second feed element 222 can be the one-half wavelength mode. The electrical length of the second feed element 222 is one-third of the electrical length of the radiator 210, which can further reduce the size of the second feed element 222. In one embodiment, the physical length L1 of the radiator 210 and the physical length L3 of the second feed element 222 satisfy: L1×20%≤L3≤L1×50%.

[0595] In one embodiment, in the first antenna, the radiator 210 forms a radiator structure conforming to a linear antenna. An electrical signal is fed in through a first feed unit. The radiator 210 can generate a first resonance, a second resonance, a fifth resonance, and a sixth resonance in a linear CM mode. The first and second resonances jointly support a first operating frequency band of the electronic device 10, and the fifth and sixth resonances jointly support a third operating frequency band of the electronic device 10. In one embodiment, the first and second resonances can be generated by a half-wavelength mode of the linear CM mode. In another embodiment, the fifth and sixth resonances can be generated by a double-wavelength mode of the linear CM mode.

[0596] In the second antenna, the radiator 210 forms a radiator structure consistent with a line antenna. An electrical signal is fed in through a second feeding unit. The radiator 210 can generate a third and a fourth resonance in line DM mode. The third and fourth resonances are used to jointly support the second operating frequency band of the electronic device 10. In one embodiment, the third and fourth resonances can be generated by a three-half wavelength mode of the line DM mode.

[0597] In one embodiment, the third operating frequency band and the second operating frequency band can be the same, and the first antenna and the second antenna can serve as sub-antennas in a MIMO system to improve the communication performance of the electronic device. In another embodiment, the third operating frequency band and the second operating frequency band can be different.

[0598] Figure 73 and Figure 74 yes Figure 72 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 73 yes Figure 72 Simulation results of the S-parameters of the antenna 200 in the electronic device 10 shown. Figure 74 yes Figure 72 Simulation results of the system efficiency and radiation efficiency of antenna 200 in the electronic device 10 shown.

[0599] like Figure 73 As shown, the first antenna (S11) can resonate near 0.7 GHz, 0.95 GHz, 2.45 GHz, and 2.9 GHz, which can correspond to the first and second resonances, and the fifth and sixth resonances in the above embodiments, respectively. The second antenna (S22) can resonate near 2.5 GHz and 2.7 GHz, which can correspond to the third and fourth resonances in the above embodiments, respectively.

[0600] The first and second resonances are generated by half-wavelength modes of the linear CM mode, the fifth and sixth resonances are generated by one-wavelength modes of the linear CM mode, and the third and fourth resonances can be generated by three-half-wavelength modes of the linear DM mode. Therefore, when the resonant frequencies of the fifth and sixth resonances are approximately the same as those of the third and fourth resonances, the first and second antennas also have good isolation. With S11 / S22 < -4dB as the boundary, within their respective resonant frequency bands, the isolation (S12) between the first and second antennas is less than -14dB.

[0601] like Figure 74 As shown, the first and second antennas exhibit good radiation efficiency and system efficiency in the resonant frequency bands of the fifth and sixth resonances, as well as the resonant frequency bands of the third and fourth resonances.

[0602] Figure 75 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0603] like Figure 75 As shown, the frame 11 has a first gap at the first position 201 and is coupled to the floor 300 at the second position 202. The radiator 210 has an open end at the first end and a grounded end at the second end. The first end and the second end of the radiator 210 correspond to the first position 201 and the second position 202 of the frame 11, respectively. The power supply component 221 has a grounded end at the first end and an open end at the second end.

[0604] The ratio of the length of the overlapping portion of the projection of the power feeder 221 on the frame 11 and the radiator 210 to the length of the power feeder 221 is greater than or equal to 25%. In one embodiment, the projection of the power feeder 221 on the frame 11 completely overlaps with the radiator 210.

[0605] It should be understood that in the above embodiments, the following situations are listed: (1) the first end and the second end of the radiator 210 are grounded ends, and the first end and the second end of the power supply 221 are open ends; (2) the first end and the second end of the radiator 210 are grounded ends, and the first end of the power supply 221 is a grounded end and the second end is an open end; (3) the first end of the radiator 210 is a grounded end and the second end is an open end, and the first end and the second end of the power supply 221 are open ends; (4) the first end and the second end of the radiator 210 are open ends, and the first end and the second end of the power supply 221 are grounded ends; (5) the first end and the second end of the radiator 210 are open ends, and the first end and the second end of the power supply 221 are grounded ends; (6) the first end of the radiator 210 is an open end and the second end is a grounded end, and the first end and the second end of the power supply 221 are grounded ends.

[0606] and Figure 75 The antenna 200 shown differs from the antenna 200 in the above embodiment in that the first end of the radiator 210 is an open end and the second end is a grounded end. The first end of the feed element 221 is a grounded end and the second end is an open end. When an electrical signal is fed into the feed point, the radiator 210 can be excited to generate a first resonance and a second resonance. Furthermore, since the first end of the radiator 210 is an open end and the second end is a grounded end, and the first and second ends of the feed element 221 are grounded ends, the size of the radiator 210 and the feed element 221 can be further reduced (for example, it can be regarded as a reduction from a half-wavelength structure to a quarter-wavelength structure), achieving miniaturization.

[0607] In one embodiment, the electrical length of the radiator 210 is one-quarter of the first wavelength, and the electrical length of the feeder 221 is one-quarter of the first wavelength. The first wavelength is the wavelength corresponding to the center frequency between the resonant point of the first resonance and the resonant point of the second resonance.

[0608] In one embodiment, the electrical length of the radiator 210 is the same as the electrical length of the feeder 221; correspondingly, the physical length of the radiator 210 is approximately the same as the physical length of the feeder 221. Since the electronic components coupled to the feeder 221 / radiator 210 can increase or decrease their physical length while maintaining the same electrical length, the physical length L1 of the radiator 210 and the physical length L2 of the feeder 221 satisfy: L1×50%≤L2≤L1. In another embodiment, the physical length L1 of the radiator 210 and the physical length L2 of the feeder 221 satisfy: L1≤L2≤L1×150%.

[0609] In one embodiment, a capacitor may be provided between the feed circuit and the feed element. In one embodiment, the capacitance value of the capacitor is less than or equal to 1.5pF. In one embodiment, the distance between the feed point and the first end (ground end) of the feed element 221 is greater than the distance between the feed point and the second end (open end) of the feed element 221. The feed element 221 can be formed into a structure similar to a monopole or left-handed antenna, further reducing the size of the feed element 221.

[0610] For the sake of brevity, Figure 75 The parts of the antenna 200 shown that are similar to those in the above embodiments will not be described in detail. For example, the position of the radiator 210 and its positional relationship with the feed element 221; the radiator 210 is used to generate the first resonance and the second resonance; the first resonance and the second resonance can be used to jointly support a working frequency band; the width of the first slot; the shape of the feed element 221, for example, it is strip-shaped; the position of the feed element 221, etc.

[0611] Figure 76 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0612] It should be understood that in the above embodiments, the electronic device 10 only includes a single housing (e.g., Figure 1 Taking the middle frame 19 shown in the illustration as an example, the technical solution provided in this application embodiment can also be applied to a foldable electronic device including multiple housings. The multiple housings can be brought closer to each other or moved away from each other by a rotating shaft, realizing the opening and closing function of the foldable electronic device 10 (switching between an unfolded state and a folded state). In the unfolded state, the angle between the multiple housings can be approximately 180°. In the folded state, the foldable electronic device 10 is currently bent, and the degree of bending of the foldable electronic device 10 reaches its maximum.

[0613] like Figure 76 As shown, the electronic device 10 may include a first housing 271, a second housing 272, and a first rotating shaft 273.

[0614] The first rotating shaft 273 is located between the first housing 271 and the second housing 272, and the first rotating shaft 273 is rotatably connected to the first housing 271 and the second housing 272 respectively, so that the first housing 271 and the second housing 272 can rotate relative to each other.

[0615] The first housing 271 includes a first frame 2710, and the second housing 272 includes a second frame 2720.

[0616] The first frame 2710 includes a first position 201 and a second position 202. The second frame 2720 includes a third position 203 and a fourth position 204. The first frame 2710 is coupled to the floor at the first position 201 and the second position 202. The second frame 2720 has a first gap and a second gap at the third position 203 and the fourth position 204, respectively.

[0617] The first frame 2710 forms a third gap between the first position 201 and the second position 202. In one embodiment, the third gap is located in the central region between the first position 201 and the second position 202.

[0618] The second frame 2720 includes a ground point between the third position 203 and the fourth position 204, and the second frame 2720 is coupled to the ground at the ground point. In one embodiment, the ground point is located in the central region between the third position 203 and the fourth position 204.

[0619] Antenna 200 may include a first feed element 221, a second feed element 222, a first radiator 210, and a second radiator 220. The first radiator 210 is the conductive portion between a first position 201 and a second position 202. The second radiator 220 is the conductive portion between a third position 203 and a fourth position 204. The first radiator 210 and the first feed element 221 are spaced apart and at least partially overlap along a first direction, which is perpendicular to the extension direction of the first radiator 210 (e.g., the y-direction). The extension direction of the first radiator 210 is in the same direction as the extension direction of the first feed element 221. The second radiator 220 and the second feed element 222 are spaced apart and at least partially overlap along a second direction, which is perpendicular to the extension direction of the second radiator 220 (e.g., the x-direction). The extension direction of the second radiator 220 is the same as the extension direction of the second feeder 222. The first direction and the second direction can be the same or different. The first end and the second end of the first feeder 221 are open ends. The first end and the second end of the second feeder 222 are grounded ends.

[0620] Antenna 200 also includes a first feed circuit 231 and a second feed circuit 232. The first feed element 221 includes a first feed point 211, and the first feed circuit 231 is coupled to the first feed point 211. The second feed element 222 includes a second feed point 213, and the second feed circuit 232 is coupled to the second feed point 213.

[0621] It should be understood that antenna 200 may include a first antenna and a second antenna. A first radiator 210 may form the first antenna. A second radiator 220 may form the second antenna.

[0622] The first radiator 210 can form a radiator structure that conforms to a slot antenna. Through the first feed circuit 231, the first radiator 210 can generate a first resonance and a second resonance in slot CM mode. The first resonance and the second resonance are used to jointly support the first operating frequency band of the electronic device 10.

[0623] The second radiator 220 can form a radiator structure that conforms to a line antenna. Through the second feed unit 232, the second radiator 220 can generate a third resonance and a fourth resonance in the line CM mode. The third resonance and the fourth resonance are used to jointly support the second operating frequency band of the electronic device 10.

[0624] Due to the good isolation between slot CM mode and line CM mode, the mutual interference between the first antenna and the second antenna is minimal. In one embodiment, the first operating frequency band and the second operating frequency band can be the same or adjacent. In one embodiment, the first antenna and the second antenna can serve as sub-antennas in a MIMO system to improve the communication performance of the electronic device. In one embodiment, the first operating frequency band and the second operating frequency band can be different.

[0625] In one embodiment, the first antenna can be Figures 9 to 40 Any one of the antennas 200 or described herein Figures 9 to 40 An antenna composed of any combination of multiple antenna structures can have a second antenna. Figures 52 to 60 Any one of the antennas 200 or described herein Figures 52 to 60 The antenna, which can be combined with any number of antenna structures, can be selected based on actual production or design needs. For the sake of brevity, Figure 76 The parts of the antenna 200 shown that are similar to those in the above embodiments will not be described in detail, such as the positional relationship between the radiator and the corresponding feed element; the width of the slot opened on the frame; the shape of the feed element, for example, a strip shape; the position of the feed element; and the operating frequency band formed by the two resonances, etc.

[0626] At the same time, for the sake of brevity, in Figure 76 In the antenna 200 shown, only one example is used where both the first and second ends of the first feed element 221 are open, and both the first and second ends of the second feed element 222 are grounded. In actual production or design, Figure 76 The first power supply component 221 and the second power supply component 222 shown can also refer to the above embodiment, and the first end and the second end can be an open end and a ground end, respectively.

[0627] It should be understood that when the first and second ends of the first radiator 210 are grounded, the first and second ends of the first feed element 221 are open, the first and second ends of the second radiator 220 are open, and the first and second ends of the second feed element 222 are both grounded, the first antenna and the second antenna have better isolation.

[0628] In one embodiment, the length of the first radiator 210 is approximately the same as the length of the second radiator 220. In another embodiment, the ratio of the length of the first radiator 210 to the length of the second radiator 220 is greater than or equal to 90% and less than or equal to 110%.

[0629] In one embodiment, when the electronic device 10 is in a folded state, the first or second gap is aligned with the third gap, such as... Figure 77 As shown in (a) above. Alignment can be understood as the first or second slit overlapping the third slit at least partially in a third direction, which is the thickness direction of the electronic device 10, for example, the z-direction.

[0630] It should be understood that aligning the first or second gap with the third gap can make the casing of the electronic device 10 more aesthetically pleasing and improve the user experience. When the first or second gap is aligned with the third gap, the first radiator 210 and the second radiator 220 at least partially overlap in the third direction.

[0631] In one embodiment, when the electronic device 10 is in a folded state, the first or second gap is not aligned with the third gap, such as... Figure 77 As shown in (b) of the diagram.

[0632] In one embodiment, the ratio of the length of the overlapping portion of the projection of the first radiator 210 onto the second frame 2720 and the length of the second radiator 220 to the length of the second radiator 220 is greater than or equal to 50%. In another embodiment, the projection of the first radiator 210 onto the second frame 2720 completely overlaps with the second radiator 220.

[0633] In one embodiment, the ratio of the length of the overlapping portion of the projection of the second radiator 220 onto the first frame 2710 and the first radiator 210 to the length of the first radiator 210 is greater than or equal to 50%. In another embodiment, the projection of the second radiator 220 onto the first frame 2710 completely overlaps with the first radiator 210.

[0634] Figures 78 to 81 yes Figure 76 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 78 yes Figure 76 The simulation results of the S-parameters of the antenna 200 of the electronic device 10 in the deployed state are shown. Figure 79 yes Figure 76 The simulation results of the S-parameters of the antenna 200 of the electronic device 10 in the folded state are shown. Figure 80 yes Figure 76 The simulation results show the system efficiency and radiation efficiency of the antenna 200 when the electronic device 10 is in the deployed state. Figure 81 yes Figure 76 The simulation results show the system efficiency and radiation efficiency of the antenna 200 when the electronic device 10 is in the folded state.

[0635] like Figure 78 As shown, when the electronic device 10 is in the deployed state, the first antenna (S11) can resonate near 2 GHz and near 2.35 GHz, which can correspond to the first resonance and the second resonance in the above embodiment, respectively. The second antenna (S22) can resonate near 2 GHz and near 2.6 GHz, which can correspond to the third resonance and the fourth resonance in the above embodiment, respectively.

[0636] like Figure 79 As shown, when the electronic device 10 is in the folded state, the first antenna (S11) can resonate around 2 GHz and 2.3 GHz, and the second antenna (S22) can resonate around 2.1 GHz and 2.6 GHz. The resonant frequencies of the first and second antennas when the electronic device 10 is in the folded state are approximately the same as the resonant frequencies of the first and second antennas when the electronic device 10 is in the unfolded state.

[0637] Furthermore, when the electronic device 10 is in the folded state, the first and second resonances are generated by slot CM modes, and the third and fourth resonances are generated by line CM modes. Compared to the electronic device 10 in the unfolded state (when the distance between the first and second antennas is greater), the electronic device 10 also exhibits good isolation between the first and second antennas when in the folded state. Therefore, when the electronic device 10 is in either the folded or unfolded state, with S11 / S22 < -4dB as the boundary, the isolation (S12) between the first and second antennas within the resonant frequency band is less than -13dB. The first and second antennas can serve as sub-antennas in a MIMO system.

[0638] It should be understood that, for the sake of brevity, the above embodiments use the example of the first antenna and the second antenna as sub-antennas in a MIMO system. In actual production or design, the first antenna and the second antenna can also operate in different operating frequency bands.

[0639] like Figure 80 and Figure 81As shown, the first and second resonances can both be generated by the slot CM mode, and the third and fourth resonances can both be generated by the line CM mode. Since the slot CM mode / line CM mode has high radiation efficiency and system efficiency, when the electronic device 10 is in the folded or unfolded state, the antenna has good radiation efficiency and system efficiency in the operating frequency band formed by the first and second resonances / third and fourth resonances.

[0640] Figure 82 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0641] like Figure 82 As shown, the structure of the first antenna in antenna 200 is similar to... Figure 76 The antenna 200 shown has the same structure as the first antenna, and the first radiator 210 is the conductive part between the first position 201 and the second position 202. Figure 82 The antenna 200 shown is Figure 76 The antenna 200 shown is distinguished by the conductive portion between the third position 203 and the fourth position 204 of the second frame 2720 serving as the second feed element 222, the second radiator 220 being disposed on the support surface, and the second frame 2720 being coupled to the ground at the third position 203 and the fourth position 204.

[0642] It should be understood that, Figure 82 In the electronic device 10 shown, the second frame 2720 does not need to have gaps at the third position 203 and the fourth position 204, which ensures the integrity of the second frame 2720 and improves its aesthetics.

[0643] For the sake of brevity, we will only use the second radiator 220 and the second feeder 222 in the second antenna as an example. In actual production or design, the first radiator 210 and the first feeder 221 in the first antenna can also adopt the same design scheme, with the conductive part between the first position 201 and the second position 202 serving as the first feeder 221.

[0644] In one embodiment, the first radiator 210 and the second feeder 221 at least partially overlap in a third direction. In another embodiment, the first radiator 210 and the second feeder 221 completely overlap in a third direction.

[0645] Figures 83 to 86 yes Figure 82 The simulation results of antenna 200 in the electronic device 10 shown are presented. Among them, Figure 83 yes Figure 82 The simulation results of the S-parameters of the antenna 200 of the electronic device 10 in the deployed state are shown. Figure 84 yes Figure 82The simulation results of the S-parameters of the antenna 200 of the electronic device 10 in the folded state are shown. Figure 85 yes Figure 82 The simulation results show the system efficiency and radiation efficiency of the antenna 200 when the electronic device 10 is in the deployed state. Figure 86 yes Figure 82 The simulation results show the system efficiency and radiation efficiency of the antenna 200 when the electronic device 10 is in the folded state.

[0646] like Figure 83 As shown, when the electronic device 10 is in the deployed state, the first antenna (S11) can resonate near 2.25 GHz and 2.6 GHz, which can correspond to the first resonance and the second resonance in the above embodiment, respectively. The second antenna (S22) can resonate near 1.95 GHz and 2.4 GHz, which can correspond to the third resonance and the fourth resonance in the above embodiment, respectively.

[0647] When the electronic device 10 is in the deployed state, for the second antenna, when the second radiator is not set, the radiator structure of the second antenna formed by the second feed element (slot DM mode) resonates around 2.35 GHz.

[0648] like Figure 84 As shown, when the electronic device 10 is in the folded state, the first antenna (S11) can resonate around 2.35 GHz and 2.7 GHz, and the second antenna (S22) can resonate around 2.05 GHz and 2.5 GHz. The resonant frequencies of the first and second antennas when the electronic device 10 is in the folded state are approximately the same as the resonant frequencies when the electronic device 10 is in the unfolded state.

[0649] When the electronic device 10 is in the folded state, without a second radiator, the second antenna only forms a radiator structure (slot DM mode) that conforms to the slot antenna and resonates around 2.55 GHz.

[0650] Furthermore, when the electronic device 10 is in the folded state, the first and second resonances are generated by slot CM modes, and the third and fourth resonances are generated by line CM modes. Compared to the electronic device 10 in the unfolded state (where the distance between the first and second antennas is greater), the electronic device 10 also exhibits good isolation between the first and second antennas when in the folded state. Therefore, when the electronic device 10 is in either the folded or unfolded state, with S11 / S22 < -4dB as the boundary, the isolation (S12) between the first and second antennas within the resonant frequency band is less than -20dB. The first and second antennas can serve as sub-antennas in a MIMO system.

[0651] It should be understood that, for the sake of brevity, the above embodiments use the example of the first antenna and the second antenna as sub-antennas in a MIMO system. In actual production or design, the first antenna and the second antenna can also operate in different operating frequency bands.

[0652] like Figure 85 and Figure 86 As shown, the first and second resonances can both be generated by the slot CM mode, and the third and fourth resonances can both be generated by the line CM mode. Since the slot CM mode / line CM mode has high radiation efficiency and system efficiency, when the electronic device 10 is in the folded or unfolded state, the antenna has good radiation efficiency and system efficiency in the operating frequency band formed by the first and second resonances / third and fourth resonances.

[0653] It should be understood that, due to the fact that Figure 82 In the antenna 200 shown, the conductive portion between the third and fourth positions of the second frame serves as the second feed element. Therefore, the radiation environment of the second radiator (e.g., clearance, electronic components surrounding the radiation source) is poor, and the efficiency bandwidth of the second antenna (e.g., the bandwidth corresponding to system efficiency > -2dB) is narrow. However, compared to when the second radiator is not present, the radiation efficiency of the second antenna is improved by 1.5dB and the system efficiency by 2dB when the electronic device 10 is in the unfolded state; and the radiation efficiency of the second antenna is improved by 2dB and the system efficiency by 2dB when the electronic device 10 is in the folded state.

[0654] Figure 87 yes Figure 82 The simulation results of the directivity coefficient of the antenna 200 when the electronic device 10 is in the deployed state.

[0655] like Figure 87 As shown in (a), the simulation results of the second antenna at 2.57 GHz without the second radiator are shown, with a corresponding directivity coefficient of 7 dBi.

[0656] like Figure 87 As shown in (b), the simulation results for the second antenna at 2.57 GHz with a second radiator are as follows: the directivity coefficient is 4.7 dBi. Compared to the antenna without a second radiator, the energy radiated by the second antenna is more dispersed and does not concentrate at a certain angle, thereby improving the communication performance of electronic devices.

[0657] Figure 88 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0658] like Figure 88As shown, the first border 2710 has gaps at the first position 201 and the second position 202, respectively. The second border 2720 has gaps at the third position 203 and the fourth position 204, respectively.

[0659] It should be understood that Figure 88 The electronic device 10 shown is Figure 76 as well as Figure 82 The only difference in the electronic device 10 shown is the boundary conditions of the first radiator 210.

[0660] exist Figure 76 as well as Figure 82 In the illustrated electronic device 10, the two ends of the first radiator 210 are grounded, and the first radiator 210 can form a radiator structure that conforms to a slot antenna. Through the first feed circuit 231, the first radiator 210 can generate a first resonance and a second resonance in slot CM mode, and the first resonance and the second resonance are used to jointly support the first operating frequency band of the electronic device 10.

[0661] And in Figure 88 In the illustrated electronic device 10, the first radiator 210 has open ends at both ends, and the first radiator 210 can form a radiator structure that conforms to a line antenna. Through the first feed circuit 231, the first radiator 210 can generate a first resonance and a second resonance in line DM mode, and the first resonance and the second resonance are used to jointly support the first operating frequency band of the electronic device 10.

[0662] Due to the good isolation between line DM mode and line CM mode, the mutual interference between the first antenna and the second antenna is minimal. In one embodiment, the first operating frequency band and the second operating frequency band can be the same or adjacent. In one embodiment, the first antenna and the second antenna can serve as sub-antennas in a MIMO system to improve the communication performance of the electronic device. In one embodiment, the first operating frequency band and the second operating frequency band can be different.

[0663] For the sake of brevity, in Figure 88 In the antenna 200 shown, only the two ends of the first radiator 210 and the two ends of the second radiator 220 are used as examples for illustration. In actual production or design, Figure 88 The two ends of the first radiator 210 shown can also be grounded, and the two ends of the second radiator 220 can also be grounded. For the sake of brevity, these will not be elaborated further.

[0664] Figure 89 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0665] It should be understood that in the above embodiments, the antenna 200 is only described as including a first antenna and a second antenna. In actual production or design, the antenna 200 may also include a third antenna formed by a third radiator 230.

[0666] like Figure 89 As shown, the first frame 2710 also includes a fifth position 205 and a sixth position 206. The first frame 2710 is coupled to the floor at the fifth position 205 and the sixth position 206. The first position 201, the second position 202, the fifth position 205, and the sixth position 206 are sequentially arranged on the first frame 2710.

[0667] The first frame 2710 has a fourth gap between the fifth position 205 and the sixth position 206. In one embodiment, the fourth gap is located in the central region between the fifth position 205 and the sixth position 206. In one embodiment, when the electronic device 10 is in a folded state, the third gap, the fourth gap, and the first gap and the second gap are aligned.

[0668] The antenna 200 also includes a third radiator 230, a third feed element 223, and a third feed circuit 233.

[0669] The third radiator 230 is the conductor portion between the fifth position 205 and the sixth position 206. The third radiator 230 and the third feeder 223 are spaced apart and at least partially overlap along a fourth direction, which is perpendicular to the extension direction of the third radiator 230 (e.g., the x-direction). The extension direction of the third radiator 230 is in the same direction as the extension direction of the third feeder 223.

[0670] The extension direction of the first radiator 210 is perpendicular to the extension direction of the third radiator 230. The fourth direction is perpendicular to the first direction. In one embodiment, the fourth direction and the second direction may be the same or different. In one embodiment, the extension direction of the third feeder 223 is perpendicular to the extension direction of the first feeder 221.

[0671] The length of the first radiator 210 in its extension direction (e.g., the fourth direction) is greater than or equal to three-quarters of the total length of the first radiator 210. The length of the third radiator 230 in its extension direction (e.g., the first direction) is greater than or equal to three-quarters of the total length of the third radiator 210.

[0672] The third power supply component 223 includes a third power supply point, and the third power supply circuit 233 is coupled to the third power supply point 211.

[0673] The first and second ends of the third power supply component 223 are open ends.

[0674] It should be understood that the first radiator 210 can form a radiator structure that conforms to a slot antenna. Through the first feed circuit 231, the first radiator 210 can generate a first resonance and a second resonance in slot CM mode. The first resonance and the second resonance are used to jointly support the first operating frequency band of the electronic device 10.

[0675] The second radiator 220 can form a radiator structure that conforms to a line antenna. Through the second feed unit 232, the second radiator 220 can generate a third resonance and a fourth resonance in the line CM mode. The third resonance and the fourth resonance are used to jointly support the second operating frequency band of the electronic device 10.

[0676] The third radiator 230 can form a radiator structure that conforms to a slot antenna. Through the third feed unit 233, the third radiator 230 can generate a seventh resonance and an eighth resonance in slot CM mode. The seventh resonance and the eighth resonance are used to jointly support the third operating frequency band of the electronic device 10.

[0677] Due to the good isolation between the slot CM mode and the line CM mode, the mutual interference between the first and second antennas, and between the third and second antennas, is minimal. Furthermore, since the extension direction of the first radiator 210 is perpendicular to the extension direction of the third radiator 230, and they are spatially orthogonal, the resonance generated by the slot CM mode in the first radiator 210 is orthogonal to the resonance generated by the slot CM mode in the third radiator 230. Therefore, the mutual interference between the first and third antennas is also minimal.

[0678] In one embodiment, due to the good isolation between the first antenna and the third antenna, the electronic device 10 may include only the first antenna and the third antenna. In another embodiment, the electronic device 10 may include only one housing. Alternatively, the electronic device 10 may include multiple housings, and the first antenna and the third antenna may be disposed on the same housing.

[0679] In one embodiment, the first, second, and third operating frequency bands may be the same or adjacent. In one embodiment, the first, second, and third antennas may serve as sub-antennas in a MIMO system to improve the communication performance of the electronic device. In one embodiment, the first, second, and third operating frequency bands may be different.

[0680] In one embodiment, the first antenna and the third antenna can be Figures 9 to 40 Any one of the antennas 200 described herein, the second antenna can be Figures 52 to 60 The antenna 200 described herein can be selected based on actual production or design requirements. For the sake of brevity, Figure 89The parts of the antenna 200 shown that are similar to those in the above embodiments will not be described in detail, such as the positional relationship between the radiator and the corresponding feed element; the width of the slot opened on the frame; the shape of the feed element, for example, a strip shape; the position of the feed element; and the operating frequency band formed by the two resonances, etc.

[0681] At the same time, for the sake of brevity, in Figure 89 In the antenna 200 shown, only the example of the first feed element 221 and the third feed element 223 having both open ends, and the second feed element 222 having both grounded ends, is used for illustration. In actual production or design, Figure 89 The first power supply component 221, the second power supply component 222, and the third power supply component 223 shown can also refer to the above embodiment, and the first end and the second end can be an open end and a grounded end, respectively.

[0682] In one embodiment, the lengths of the first radiator 210, the second radiator 220, and the third radiator 230 are approximately the same (with a difference of up to 10%).

[0683] In one embodiment, the ratio of the length of the overlapping portion of the projection of the first radiator 210 onto the second frame 2720 and the length of the second radiator 220 to the length of the second radiator 220 is greater than or equal to 30%. In another embodiment, the ratio of the length of the overlapping portion of the projection of the third radiator 230 onto the second frame 2720 and the length of the second radiator 220 to the length of the second radiator 220 to the length of the second radiator 220 is greater than or equal to 30%.

[0684] In one embodiment, the second position 202 coincides with (is identical to) the fifth position 205. The grounding structure between the second position 202 and the ground can be used to improve the isolation between the first and third antennas. In one embodiment, the second position 202 can be electrically connected to the ground via a grounding element (e.g., a spring clip, a connecting rod). As the width of the connection between the grounding element and the first frame 2710 increases, the isolation between the first and third antennas improves. In one embodiment, the second position 202 is electrically connected to the ground via a spring clip (the width of the connection between the grounding element and the first frame 2710 is approximately 1 mm), and the isolation between the first and third antennas is approximately 10 dB. In another embodiment, the second position 202 is electrically connected to the ground via a connecting rod (the width of the connection between the grounding element and the first frame 2710 is greater than or equal to 3 mm), and the isolation between the first and third antennas is greater than 13 dB.

[0685] Figure 90 This is a schematic diagram of an electronic device 10 provided in an embodiment of this application.

[0686] like Figure 90As shown in (a), the frame 11 is coupled to the floor 300 at a first position 201 and a second position 202. The frame 11 has a slot between the first position 201 and the second position 202 (e.g., the distance between the conductors on either side of the slot is greater than or equal to 5 mm). The radiator 210 is the conductive portion of the frame 11 between the first position 201 and the second position 202.

[0687] The radiator 210 is divided into a first portion 301 and a second portion 302 by a slit. The first portion 301 and the feeder 221 at least partially overlap along a first direction, and the second portion 302 and the feeder 221 at least partially overlap along the first direction, which is perpendicular to the extension direction of the radiator 210 (e.g., the y-direction).

[0688] In one embodiment, the minimum distance D0 between the first part 301 and the second part 302 is less than or equal to the length of the first part 301. In another embodiment, the minimum distance D0 between the first part 301 and the second part 302 is less than or equal to the length of the second part 302. In yet another embodiment, the minimum distance D0 between the first part 301 and the second part 302 is less than or equal to half the sum of the lengths of the first part 301 and the second part 302.

[0689] It should be understood that in the above embodiments, the radiator is only described as a continuous conductor portion. In actual production or design, the radiator may also be a discontinuous conductor portion.

[0690] In one embodiment, the border 11 may further include a third position 203 and a fourth position 204. The third position 203 and the fourth position 204 are located between the first position 201 and the second position 202. The first position 201, the third position 203, the fourth position 204, and the second position 202 are arranged sequentially. The border 11 has gaps at the third position 203 and the fourth position 204, respectively. Figure 90 As shown in (b) of the diagram.

[0691] In one embodiment, the first portion 301 is the conductive portion of the frame 11 between the first position 201 and the third position 203. The second portion 302 is the conductive portion of the frame 11 between the fourth position 204 and the second position 202. The radiator 210 includes the first portion 301 and the second portion 302.

[0692] In one embodiment, the conductive portion between the third position 203 and the fourth position 204 can be a floating stub (excluding the grounding point), such as... Figure 90 As shown in (b) above. In one embodiment, the conductive portion between the third position 203 and the fourth position 204 may also include a ground point, such as... Figure 90 As shown in (c) in the figure.

[0693] In one embodiment, the antenna 200 may further include an inductor. The inductor may be coupled between the feed element 221 and the ground plane 300. The inductor may be used to increase the physical length of the feed element 221 while keeping its electrical length unchanged, so that the minimum distance D0 between the first portion 301 and the second portion 302 is larger, while the feed element 221 still at least partially overlaps with the first portion 301 and the second portion 302 along the first direction.

[0694] It should be understood that, Figure 90 In the electronic device 10 shown, the antenna 200 can be Figures 9 to 40 Any one of the antennas 200 described herein. For the sake of brevity, they will not be described in detail.

[0695] Similarly, in Figure 90 In the electronic device 10 shown, or Figures 9 to 40 An antenna composed of any combination of multiple antenna structures can have a second antenna. Figures 52 to 60 Any one of the antennas 200 described herein.

[0696] In one embodiment, when the frame 11 has gaps at the first position 201 and the second position 202 respectively, the first position 201 and the second position 202 can be coupled to the floor 300 through a grounding point. The grounding point can divide the radiator 210 into a first part 301 and a second part 302, such as... Figure 91 As shown.

[0697] In one embodiment, the minimum distance between the first portion 301 and the second portion 302 is less than or equal to the length of the first portion 301. In another embodiment, the minimum distance between the first portion 301 and the second portion 302 is less than or equal to the length of the second portion 302. In yet another embodiment, the minimum distance between the first portion 301 and the second portion 302 is less than or equal to half the sum of the lengths of the first portion 301 and the second portion 302.

[0698] In one embodiment, when the radiator 210 is coupled to the floor 300 at the grounding point via a grounding tie, the width of the grounding tie can be less than or equal to the length of the first portion 301, or less than or equal to the length of the second portion 302, or less than or equal to half the sum of the lengths of the first portion 301 and the second portion 302, such as... Figure 91 As shown in (a) in the figure.

[0699] In one embodiment, grounding points may include multiple points, such as... Figure 91As shown in (b) above. For example, the frame 11 may include a third position 203 and a fourth position 204, located between the first position 201 and the second position 202. The frame 11 is coupled to the ground 300 at the third position 203 and the fourth position 204. The third position 203 and the fourth position 204 may serve as the aforementioned grounding points.

[0700] In one embodiment, the width of a grounding point can be understood as the distance between the two furthest grounding points among a plurality of grounding points.

[0701] In one embodiment, the width of the grounding point may be less than or equal to the length of the first portion 301, or less than or equal to the length of the second portion 302, or less than or equal to half the sum of the lengths of the first portion 301 and the second portion 302, such as... Figure 91 As shown in (b) of the diagram.

[0702] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An antenna structure, characterized in that, include: floor; A frame, at least partially spaced from the floor, the frame including a first position and a second position, the frame coupled to the floor at the first position and the second position, the frame having a first gap between the first position and the second position, the first gap being located in the central region between the first position and the second position; A radiator, wherein the radiator is the conductive portion of the frame between the first position and the second position; The first feeder has an open end. The radiator and the first feeder are spaced apart and at least partially overlap along a first direction. The first direction is perpendicular to the extension direction of the radiator, and the extension direction of the first feeder is in the same direction as the extension direction of the radiator. A first power supply circuit, wherein the first power supply component includes a first power supply point, and the first power supply circuit is coupled to the first power supply point; The first feed element and the radiator are used to generate a first resonance and a second resonance, and the first resonance and the second resonance are used to jointly support the first operating frequency band. The first power supply circuit is used to feed the first power supply component with the radio frequency signal of the first operating frequency band.

2. The antenna structure according to claim 1, characterized in that, At the resonance point of the first resonance, the currents on the radiator are in the same direction; At the resonant point of the second resonance, the currents on the radiator are in the same direction.

3. The antenna structure according to claim 1, characterized in that, At the resonance point of the first resonance, the current on the first feeder is in the same direction; At the resonant point of the second resonance, the current on the first feeder is in the same direction.

4. The antenna structure according to claim 1, characterized in that, The frame also includes a third position, and the first position, the second position and the third position are arranged sequentially, and the frame has a second gap at the third position; The antenna structure also includes parasitic stubs, which are conductive portions of the frame between the second and third positions.

5. The antenna structure according to claim 4, characterized in that, The parasitic stubs are also used to generate the fifth resonance; At the resonant point of the fifth resonance, the current on the parasitic branch is in the same direction as the current on the radiator between the first slit and the second slit.

6. The antenna structure according to claim 1, characterized in that, The second end of the first power supply component is an open end, and the second end of the first power supply component is spaced apart from the ground or coupled to the ground through a capacitive device; The ratio of the length of the overlapping portion of the projection of the first feeder on the frame and the radiator to the length of the radiator is greater than or equal to 25%.

7. The antenna structure according to claim 1, characterized in that, The second end of the first power supply component is an open end, and the second end of the first power supply component is spaced apart from the ground or coupled to the ground through a capacitive device; The physical length L1 of the radiator and the physical length L2 of the first feeder satisfy the following condition: L1×50%≤L2≤L1.

8. The antenna structure according to claim 1, characterized in that, The second end of the first power supply component is an open end, and the second end of the first power supply component is spaced apart from the ground or coupled to the ground through a capacitive device; The distance between the projection of the first gap onto the first power supply component and the center of the first power supply component is less than or equal to one-quarter of the length of the first power supply component.

9. The antenna structure according to claim 6, characterized in that, The first power supply component also includes a grounding point, which is coupled to the grounding point, and the lengths of the first power supply components on both sides of the grounding point are different.

10. The antenna structure according to claim 1, characterized in that, The second end of the first power supply component is a grounding end, and the second end of the first power supply component is directly electrically connected to the floor or grounded through an inductive device; The ratio of the length of the overlapping portion of the projection of the first feeder on the frame and the radiator to the length of the first feeder is greater than or equal to 50%.

11. The antenna structure according to claim 1, characterized in that, The second end of the first power supply component is a grounding end, and the second end of the first power supply component is directly electrically connected to the floor or grounded through an inductive device; The physical length L1 of the radiator and the physical length L2 of the first feeder satisfy the following condition: L1×25%≤L2≤L1×50%.

12. The antenna structure according to claim 1, characterized in that, The second end of the first power supply component is a grounding end, and the first power supply component is directly electrically connected to the ground at the grounding point or grounded through an inductive device; The distance between the projection of the grounding point on the radiator and the first gap is less than or equal to half the length of the first power supply component.

13. The antenna structure according to claim 1, characterized in that, The antenna structure also includes, Second power supply component and second power supply circuit; The second power supply component is spaced apart from the first power supply component and the radiator. The first and second ends of the first power supply component are open ends, and the first and second ends of the second power supply component are grounded ends; The second power supply component includes a second power supply point, and the second power supply circuit is coupled to the second power supply point; The radiator is also used to generate a third resonance and a fourth resonance, which together support the second operating frequency band. The second feed circuit is used to feed the radio frequency signal of the second operating frequency band to the second feed element.

14. The antenna structure according to claim 1, characterized in that, The distance D between the first power supply element and the radiator is less than or equal to 5 mm.

15. The antenna structure according to claim 1, characterized in that, The frequency difference between the resonant frequency of the first resonance and the resonant frequency of the second resonance is within 5% to 20% of the first frequency, where the first frequency is either the resonant frequency of the first resonance or the resonant frequency of the second resonance.

16. The antenna structure according to any one of claims 1 to 15, characterized in that, Based on the fact that the resonant frequency of the first resonance and / or the resonant frequency of the second resonance is less than or equal to 1 GHz, the frequency difference between the resonant frequency of the first resonance and the resonant frequency of the second resonance is greater than or equal to 50 and less than or equal to 160 MHz. Based on the resonant frequency of the first resonance and / or the resonant frequency of the second resonance being greater than 1 GHz and less than or equal to 2 GHz, the frequency difference between the resonant frequency of the first resonance and the resonant frequency of the second resonance is greater than or equal to 120 MHz and less than or equal to 300 MHz. Based on the resonant frequency of the first resonance and / or the resonant frequency of the second resonance being greater than 2GHz and less than or equal to 3GHz, the frequency difference between the resonant frequency of the first resonance and the resonant frequency of the second resonance is greater than or equal to 160MHz and less than or equal to 500MHz.

17. An antenna structure, characterized in that, include: floor; A frame, at least partially spaced from the floor, the frame including a grounding point, a first position and a second position, the frame having a first gap and a second gap respectively at the first position and the second position, the grounding point being located in the central region between the first position and the second position, and the frame being coupled to the floor at the grounding point; A radiator, wherein the radiator is the conductive portion of the frame between the first position and the second position; The first power supply element has a first end that is a ground terminal. The radiator and the first power supply element are spaced apart and at least partially overlap along a first direction. The first direction is perpendicular to the extension direction of the radiator, and the extension direction of the first power supply element is in the same direction as the extension direction of the radiator. A first power supply circuit, wherein the first power supply component includes a first power supply point, and the first power supply circuit is coupled to the first power supply point; The first feed element and the radiator are used to generate a first resonance and a second resonance, and the first resonance and the second resonance are used to jointly support the first operating frequency band. The first power supply circuit is used to feed the first power supply component with the radio frequency signal of the first operating frequency band.

18. The antenna structure according to claim 17, characterized in that, At the resonance point of the first resonance, the currents on the radiators on both sides of the grounding point are reversed; At the resonant point of the second resonance, the currents on the radiators on both sides of the grounding point are reversed.

19. The antenna structure according to claim 17, characterized in that, At the resonance point of the first resonance, the currents on both sides of the center of the first feed element are reversed; At the resonant point of the second resonance, the currents on both sides of the center of the first feeder are reversed.

20. The antenna structure according to claim 17, characterized in that, The frame also includes a third position, and the first position, the second position and the third position are arranged sequentially, and the frame is coupled to the floor at the third position; The antenna structure also includes parasitic stubs, which are conductive portions of the frame between the second and third positions.

21. The antenna structure according to claim 20, characterized in that, The parasitic stubs are also used to generate a third resonance; At the resonant point of the third resonance, the current on the parasitic stub is opposite to the current on the radiator between the grounding point and the second position.

22. The antenna structure according to claim 17, characterized in that, The second end of the first power supply component is a grounding end, which can be directly grounded or grounded through an inductive device; The ratio of the length of the overlapping portion of the projection of the first feeder on the frame and the radiator to the length of the radiator is greater than or equal to 25%.

23. The antenna structure according to claim 17, characterized in that, The second end of the first power supply component is a grounding end, which can be directly grounded or grounded through an inductive device; The physical length L1 of the radiator and the physical length L2 of the first feeder satisfy the following condition: L1×50%≤L2≤L1.

24. The antenna structure according to claim 17, characterized in that, The second end of the first power supply component is a grounding end, which can be directly grounded or grounded through an inductive device; The distance between the projection of the grounding point onto the first power supply component and the center of the first power supply component is less than or equal to one-quarter of the length of the first power supply component.

25. The antenna structure according to claim 17, characterized in that, The second end of the first power supply component is an open end. The second end of the first power supply component is spaced apart from the ground or coupled to the ground through a capacitive device; The ratio of the length of the overlapping portion of the projection of the first feeder on the frame and the radiator to the length of the first feeder is greater than or equal to 50%.

26. The antenna structure according to claim 17, characterized in that, The second end of the first power supply component is an open end, and the second end of the first power supply component is spaced apart from the ground or coupled to the ground through a capacitive device; The physical length L1 of the radiator and the physical length L2 of the first feeder satisfy the following condition: L1×25%≤L2≤L1×50%.

27. The antenna structure according to claim 17, characterized in that, The second end of the first power supply component is an open end, and the second end of the first power supply component is spaced apart from the ground or coupled to the ground through a capacitive device; The distance between the projection of the second end of the first power supply element onto the radiator and the grounding point is less than or equal to one-quarter of the length of the radiator.

28. The antenna structure according to claim 17, characterized in that, The antenna structure also includes, Second power supply component and second power supply circuit; The second power supply component is spaced apart from the first power supply component and the radiator. The first and second ends of the first power supply component are grounded terminals, and the first and second ends of the second power supply component are open terminals. The second power supply component includes a second power supply point, and the second power supply circuit is coupled to the second power supply point; The radiator is also used to generate a third resonance and a fourth resonance, which together support the second operating frequency band. The second feed circuit is used to feed the radio frequency signal of the second operating frequency band to the second feed element.

29. The antenna structure according to claim 17, characterized in that, The distance D between the first power supply element and the radiator is less than or equal to 5 mm.

30. The antenna structure according to claim 17, characterized in that, The frequency difference between the resonant frequency of the first resonance and the resonant frequency of the second resonance is within 5% to 20% of the first frequency, where the first frequency is either the resonant frequency of the first resonance or the resonant frequency of the second resonance.

31. The antenna structure according to any one of claims 17 to 30, characterized in that, Based on the fact that the resonant frequency of the first resonance and / or the resonant frequency of the second resonance is less than or equal to 1 GHz, the frequency difference between the resonant frequency of the first resonance and the resonant frequency of the second resonance is greater than or equal to 50 and less than or equal to 160 MHz. Based on the resonant frequency of the first resonance and / or the resonant frequency of the second resonance being greater than 1 GHz and less than or equal to 2 GHz, the frequency difference between the resonant frequency of the first resonance and the resonant frequency of the second resonance is greater than or equal to 120 MHz and less than or equal to 300 MHz. Based on the resonant frequency of the first resonance and / or the resonant frequency of the second resonance being greater than 2GHz and less than or equal to 3GHz, the frequency difference between the resonant frequency of the first resonance and the resonant frequency of the second resonance is greater than or equal to 160MHz and less than or equal to 500MHz.

32. An antenna structure, characterized in that, include: floor; A frame, at least partially spaced from the floor, the frame including a first position and a second position, the frame being coupled to the floor at the first position, and the frame having a first gap at the second position; A radiator, the radiator including a conductive portion of the frame between the first position and the second position; A power supply component, wherein the first end and the second end of the power supply component are open ends, the radiator and the power supply component are spaced apart, and the radiator and the power supply component overlap at least partially along a first direction, the first direction being perpendicular to the extension direction of the radiator, and the extension direction of the power supply component being in the same direction as the extension direction of the radiator. A power supply circuit, wherein the power supply component includes a first power supply point, and the power supply circuit is coupled to the power supply point; The feed element and the radiator are used to generate a first resonance and a second resonance, and the first resonance and the second resonance are used to jointly support the first operating frequency band. The power supply circuit is used to feed the power supply component with radio frequency signals of the first operating frequency band.

33. The antenna structure according to claim 32, characterized in that, At the resonance point of the first resonance, the currents on the radiator are in the same direction; At the resonant point of the second resonance, the currents on the radiator are in the same direction.

34. The antenna structure according to claim 32, characterized in that, At the resonance point of the first resonance, the currents on the feeder are in the same direction; At the resonant point of the second resonance, the currents on the feeder are in the same direction.

35. The antenna structure according to claim 32, characterized in that, The ratio of the length of the overlapping portion of the projection of the power feeder on the frame and the radiator to the length of the radiator is greater than or equal to 25%. The projection of the power supply component on the frame covers the first gap.

36. The antenna structure according to claim 32, characterized in that, The physical length L1 of the radiator and the physical length L2 of the feeder satisfy the following condition: L1≤L2≤L1×200%.

37. The antenna structure according to claim 32, characterized in that, The distance between the projection of the first gap onto the power supply component and the center of the power supply component is less than or equal to one-quarter of the length of the power supply component.

38. The antenna structure according to any one of claims 32 to 37, characterized in that, The distance D between the power supply component and the radiator is less than or equal to 5 mm.

39. An antenna structure, characterized in that, include: floor; A frame, at least partially spaced from the floor, the frame including a first position and a second position, the frame having a first gap at the first position and the frame coupled to the floor at the second position; A radiator, the radiator including a conductive portion of the frame between the first position and the second position; A power supply component, wherein the first end and the second end of the power supply component are grounded terminals, the radiator and the power supply component are spaced apart, and the radiator and the power supply component overlap at least partially along a first direction, the direction being perpendicular to the extension direction of the radiator, and the extension direction of the power supply component being in the same direction as the extension direction of the radiator. A power supply circuit, wherein the power supply component includes a power supply point, and the power supply circuit is coupled to the power supply point; The feed element and the radiator are used to generate a first resonance and a second resonance, and the first resonance and the second resonance are used to jointly support the first operating frequency band. The power supply circuit is used to feed the power supply component with radio frequency signals of the first operating frequency band.

40. The antenna structure according to claim 39, characterized in that, At the resonance point of the first resonance, the currents on the radiator are in the same direction; At the resonant point of the second resonance, the currents on the radiator are in the same direction.

41. The antenna structure according to claim 39, characterized in that, At the resonance point of the first resonance, the currents on both sides of the center of the feed element are reversed; At the resonant point of the second resonance, the currents on both sides of the center of the feeder are reversed.

42. The antenna structure according to claim 39, characterized in that, The ratio of the length of the overlapping portion of the projection of the power feeder on the frame and the radiator to the length of the radiator is greater than or equal to 25%. The projection of the power supply component on the frame covers the second position.

43. The antenna structure according to claim 39, characterized in that, The physical length L1 of the radiator and the physical length L2 of the feeder satisfy the following condition: L1≤L2≤L1×200%.

44. The antenna structure according to claim 39, characterized in that, The distance between the projection of the second position onto the power supply component and the center of the power supply component is less than or equal to one-quarter of the length of the power supply component.

45. The antenna structure according to any one of claims 39 to 44, characterized in that, The distance D between the power supply component and the radiator is less than or equal to 5 mm.

46. ​​An antenna structure, characterized in that, include: floor; A frame, at least partially spaced from the floor, the frame including a first position and a second position, the frame having a first gap at the first position and the frame coupled to the floor at the second position; A radiator, the radiator including a conductive portion of the frame between the first position and the second position; A power supply component, wherein the first end of the power supply component is an open end and the second end is a grounded end; the radiator and the power supply component are spaced apart, and the radiator and the power supply component overlap at least partially along a first direction, the direction being perpendicular to the extension direction of the radiator; the extension direction of the power supply component is in the same direction as the extension direction of the radiator. A power supply circuit and a first capacitive device, the power supply circuit including a power supply point, the first capacitive device being coupled between the power supply circuit and the power supply point, the capacitance value of the first capacitive device being less than or equal to 1.5pF; The feed element and the radiator are used to generate a first resonance and a second resonance, and the first resonance and the second resonance are used to jointly support the first operating frequency band. The power supply circuit is used to feed the power supply component with radio frequency signals of the first operating frequency band.

47. The antenna structure according to claim 46, characterized in that, The physical length L1 of the radiator and the physical length L2 of the feeder satisfy the following condition: L1×50%≤L2≤L1.

48. The antenna structure according to claim 46 or 47, characterized in that, The first end of the power supply component is coupled to the ground via a second capacitive device; When the center frequency of the first operating frequency band is less than or equal to 1 GHz, the capacitance value of the second capacitive device is less than or equal to 10 pF. When the center frequency of the first operating frequency band is greater than 1 GHz and less than or equal to 2 GHz, the capacitance value of the second capacitive device is less than or equal to 5 pF. When the center frequency of the first operating frequency band is greater than 2GHz and less than or equal to 3GHz, the capacitance value of the second capacitive device is less than or equal to 3pF. When the center frequency of the first operating frequency band is greater than 3GHz, the capacitance value of the second capacitive device is less than or equal to 2pF.

49. An antenna structure, characterized in that, include: floor; A frame, at least partially spaced from the floor, the frame including a first position and a second position, the frame having a first gap at the first position and the frame coupled to the floor at the second position; Antenna, the antenna comprising: A radiator, the radiator including a conductive portion of the frame between the first position and the second position; A power supply component, wherein the first end of the power supply component is an open end and the second end of the power supply component is a grounded end; the radiator and the power supply component are spaced apart and at least partially overlap along a first direction, wherein the first direction is perpendicular to the extension direction of the radiator and the extension direction of the power supply component is in the same direction as the extension direction of the radiator. A power supply circuit and a first capacitive device, the power supply circuit including a power supply point, the first capacitive device being coupled between the power supply circuit and the power supply point, the capacitance value of the first capacitive device being less than or equal to 1.5pF; The feed element and the radiator are used to generate a first resonance and a second resonance, and the first resonance and the second resonance are used to jointly support the first operating frequency band. The power supply circuit is used to feed the power supply component with radio frequency signals of the first operating frequency band.

50. The antenna structure according to claim 49, characterized in that, The first end of the power supply component is coupled to the ground via a second capacitive device; The ratio of the length of the overlapping portion of the projection of the power feeder on the frame and the radiator to the length of the radiator is greater than or equal to 25% and less than or equal to 75%.

51. The antenna structure according to claim 49 or 50, characterized in that, The first end of the power supply component is coupled to the ground via a second capacitive device; The physical length L1 of the radiator and the physical length L2 of the feeder satisfy the following condition: L1×50%≤L2≤L1×100%.

52. The antenna structure according to claim 50, characterized in that, When the center frequency of the first operating frequency band is less than or equal to 1 GHz, the capacitance value of the second capacitive device is less than or equal to 10 pF. When the center frequency of the first operating frequency band is greater than 1 GHz and less than or equal to 2 GHz, the capacitance value of the second capacitive device is less than or equal to 5 pF. When the center frequency of the first operating frequency band is greater than 2GHz and less than or equal to 3GHz, the capacitance value of the second capacitive device is less than or equal to 3pF. When the center frequency of the first operating frequency band is greater than 3GHz, the capacitance value of the second capacitive device is less than or equal to 2pF.

53. An electronic device, characterized in that, The electronic device includes an antenna structure as described in any one of claims 1 to 52.

54. An electronic device, characterized in that, include: A first housing and a second housing, the first housing including a first antenna structure, the second housing including a second antenna structure, the first antenna structure being an antenna structure as described in any one of claims 1 to 16, the second antenna structure being an antenna structure as described in any one of claims 17 to 31, wherein the radiator of the first antenna structure is a first radiator, and the radiator of the second antenna structure is a second radiator; A first rotating shaft is located between the first housing and the second housing, and the first rotating shaft is rotatably connected to both the first housing and the second housing. Wherein, the first operating frequency band of the first antenna structure and the first operating frequency band of the second antenna structure are the same or adjacent; Since the electronic device is in a folded state, the first radiator and the second radiator at least partially overlap in a second direction, which is the thickness direction of the electronic device.

55. The electronic device according to claim 54, characterized in that, The ratio of the length of the first radiator to the length of the second radiator is greater than or equal to 90% and less than or equal to 110%.

56. The electronic device according to claim 54, characterized in that, The frame of the first antenna structure is the first frame of the first housing, and the frame of the second antenna structure is the second frame of the second housing; Wherein, the ratio of the length of the overlapping portion of the projection of the first radiator on the second frame and the second radiator to the length of the second radiator is greater than or equal to 50%, and / or, The ratio of the length of the overlapping portion of the projection of the second radiator on the first frame and the first radiator to the length of the first radiator is greater than or equal to 50%.

57. The electronic device according to any one of claims 54 to 56, characterized in that, Since the electronic device is in a folded state, the first slot of the first antenna structure is aligned with the first slot or the second slot of the second antenna structure in the second direction.

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