Electronic device

Abstract

Provided in the present application is an electronic device, comprising an antenna, wherein the antenna uses a conductive portion of a frame of the electronic device as a radiator, and the radiator is coupled and connected to a ground plate at a first connection point and a second connection point by means of a first grounding control circuit and a second grounding control circuit. By arranging a first grounding control circuit and a second grounding control circuit, the states in which a radiator is coupled and connected to a ground plate at a first connection point are different, and the states in which the radiator is coupled and connected to the ground plate at a second connection point are different, so that the radiator is used for generating first resonance and second resonance.

Description

An electronic device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on July 31, 2023, with application number 202310961462.9 and application name “An electronic device”, and the Chinese patent application filed with the China Patent Office on August 29, 2023, with application number 202311100976.1 and application name “An electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of wireless communications, and in particular to an electronic device. Background Art

[0003] With the continuous evolution of mobile communication technology, satellite communication has gradually become a key feature in mobile devices. Unlike traditional cellular antennas, satellite antenna design requires consideration of the radiation patterns generated by the antenna in both the transmit and receive bands. If the maximum radiation pattern generated by the transmit band differs significantly from the maximum radiation pattern generated by the receive band, alignment with the satellite will occur in the transmit band (maximum radiation pointing toward the satellite), while alignment with the satellite in the receive band will be lost, significantly reducing the accuracy of the antenna's transmission of electrical signals.

[0004] However, antennas operating in different frequency bands often produce inconsistent radiation patterns. Therefore, maintaining the consistency of the radiation patterns produced by satellite antennas in different frequency bands is a major design challenge.

[0005] Summary of the Invention

[0006] The present application provides an electronic device including an antenna. The antenna utilizes a portion of the conductive frame of the electronic device as a radiator, thereby minimizing the difference between the maximum radiation direction of a directional pattern generated by the antenna in a first frequency band and the maximum radiation direction of a directional pattern generated in a second frequency band, thereby enabling the electronic device to have good satellite communication performance.

[0007] In a first aspect, an electronic device is provided, comprising: a floor; a conductive frame, comprising a first position and a second position, the frame having a first slit and a second slit at the first position and the second position, respectively; an antenna, the antenna comprising: a first radiator and a first feeding circuit, the first radiator being a conductive portion of the frame between the first position and the second position, the first radiator comprising a first feeding point, the first feeding circuit coupled to the first feeding point for feeding electrical signals in a first frequency band and a second frequency band; a first grounding control circuit and a second grounding control circuit, the first radiator comprising a first connection point and a second connection point, the first connection point being located between the first position and the second connection point, the first feeding point being located between the first position and the first connection point, a first end of the first grounding control circuit being coupled to the first connection point, a second end of the first grounding control circuit being coupled to the floor, a first end of the second grounding control circuit being coupled to the second connection point, and a second end of the second grounding control circuit being coupled to the floor; wherein the first radiator is configured to generate a first resonance corresponding to the first frequency band, and the first radiator, the first grounding control circuit, and the second grounding control circuit are configured to generate a second resonance corresponding to the second frequency band, the resonant point frequency of the second resonance being higher than the resonant point frequency of the first resonance.

[0008] According to the technical solution provided in the embodiments of the present application, the antenna generates the first resonance and the second resonance respectively through different parts of the first radiator through the different operating states of the first ground control circuit and the second ground control circuit. At the resonance point of the first resonance, the first ground control circuit and the second ground control circuit are in the first circuit state, and the antenna can generate the first resonance through the entire first radiator. At the resonance point of the second resonance, the first ground control circuit and the second ground control circuit are in the second circuit state, and the antenna can generate the second resonance through the first radiator between the first position and the first connection point and the second position and the second connection point. The antenna can generate the first resonance and the second resonance through the first radiator, so that the electronic device operates in the transmit frequency band and the receive frequency band in satellite communications. In addition, by reusing the first radiator to generate the first resonance and the second resonance, the antenna is smaller in size.

[0009] In combination with the first aspect, in some implementations of the first aspect, at the resonance point of the first resonance, the current on the first radiator is in the same direction; at the resonance point of the second resonance, the current on the first radiator between the first end of the first radiator and the first connection point is in the same direction as the current on the first radiator between the second end of the first radiator and the second connection point, the first end of the first radiator is an end of the first radiator at the first position, and the second end of the first radiator is an end of the first radiator at the second position.

[0010] According to the technical solutions provided in the embodiments of the present application, both the first and second resonances are generated by the linear DM mode described in the above embodiments. Because the current generated by the linear DM mode is primarily generated by the first radiator, multiple current modes are not generated on the floor, making it easy to determine the maximum radiation direction of the antenna's directional pattern.

[0011] In combination with the first aspect, in certain implementations of the first aspect, at the resonance point of the first resonance, the central area of ​​the first radiator may include a large current point; at the resonance point of the second resonance, the first current region and the second current region include large current points, the first current region includes the first connection point, and the second current region includes the second connection point.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the first grounding control circuit or the second grounding control circuit includes at least one of the following circuits: a filtering circuit, wherein the filtering circuit is in an off state in the first frequency band and is in an on state in the second frequency band; a switching circuit, wherein the switching circuit includes a first switch, wherein the switch is in an off state in the first frequency band and is in an on state in the second frequency band.

[0013] In combination with the first aspect, in certain implementations of the first aspect, at the resonance point of the first resonance, the first grounding control circuit and the second grounding control circuit are in a first circuit state; at the resonance point of the second resonance, the first grounding control circuit and the second grounding control circuit are in a second circuit state, and the first circuit state and the second circuit state are different.

[0014] In combination with the first aspect, in some implementations of the first aspect, a distance between the first feeding point and the first position is less than or equal to 5 mm.

[0015] In combination with the first aspect, in some implementations of the first aspect, a ratio of a distance between the first connection point and the second connection point to a length of the first radiator is less than or equal to two-thirds.

[0016] In combination with the first aspect, in some implementations of the first aspect, a ratio of the distance between the first connection point and the second connection point to the length of the first radiator is greater than or equal to one third and less than or equal to three fifths.

[0017] In combination with the first aspect, in some implementations of the first aspect, a ratio between the resonance point frequency of the second resonance and the resonance point frequency of the first resonance is greater than 1 and less than or equal to 3.

[0018] In combination with the first aspect, in some implementations of the first aspect, a ratio between the resonance point frequency of the second resonance and the resonance point frequency of the first resonance is greater than or equal to 1.5 and less than or equal to 2.5.

[0019] In combination with the first aspect, in some implementations of the first aspect, a ratio of the distance between the first connection point and the center of the first radiator to the distance between the second connection point and the center of the first radiator is greater than or equal to 0.9 and less than or equal to 1.1.

[0020] In combination with the first aspect, in some implementations of the first aspect, the first feeding circuit includes a first RF channel and a second RF channel, the first RF channel is used to feed signals in the first frequency band, and the second RF channel is used to feed signals in the second frequency band.

[0021] In combination with the first aspect, in certain implementations of the first aspect, the first radiator further includes a third connection point, which is located between the second position and the second connection point; the antenna further includes a tuning circuit, the first end of the tuning circuit is coupled to the third connection point, and the second end of the tuning circuit is coupled to the floor.

[0022] In combination with the first aspect, in some implementations of the first aspect, the antenna further includes a second feeding circuit; the first radiator includes a second feeding point, the second feeding point is located between the second position and the second connection point, and the second feeding circuit is coupled to the second feeding point for feeding electrical signals of the first frequency band and the second frequency band.

[0023] In combination with the first aspect, in some implementations of the first aspect, the first radiator further includes a third connection point and a fourth connection point, the third connection point being located between the first position and the first connection point, and the fourth connection point being located between the second position and the second connection point; the antenna further includes a third grounding control circuit and a fourth grounding control circuit, the first end of the third grounding control circuit being coupled to the third connection point, the second end of the third grounding control circuit being coupled to the floor, the first end of the fourth grounding control circuit being coupled to the fourth connection point, and the second end of the fourth grounding control circuit being coupled to the floor; wherein the third grounding control circuit includes a second switch, the second switch being used to switch the coupling connection state between the third grounding control circuit and the third connection point; the fourth grounding control circuit includes a third switch, the third switch being used to switch the coupling connection state between the fourth grounding control circuit and the fourth connection point.

[0024] In combination with the first aspect, in certain implementations of the first aspect, based on the electrical signals of the first frequency band and the second frequency band fed into the first feeding point, the second switch is in the disconnected state and the third switch is in the on state; based on the electrical signals of the first frequency band and the second frequency band fed into the second feeding point, the second switch is in the on state and the third switch is in the disconnected state.

[0025] In combination with the first aspect, in some implementations of the first aspect, the second feeding circuit includes a third RF channel and a fourth RF channel, the third RF channel is used to feed the signal of the first frequency band, and the fourth RF channel is used to feed the signal of the second frequency band.

[0026] In combination with the first aspect, in some implementations of the first aspect, the ratio of the distance between the first feeding point and the center of the first radiator to the distance between the second feeding point and the center of the first radiator is greater than or equal to 0.9 and less than or equal to 1.1.

[0027] In combination with the first aspect, in some implementations of the first aspect, the antenna is a satellite antenna, the first frequency band is a transmitting frequency band of the satellite antenna, and the second frequency band is a receiving frequency band of the satellite antenna.

[0028] In conjunction with the first aspect, in some implementations of the first aspect, the frame further includes a grounding point, the grounding point being located between the first position and the second position; the electronic device further includes a middle frame, the middle frame including the frame and a middle plate, wherein the middle plate is electrically connected to the floor panel;

[0029] The frame is connected to the middle plate through a first connecting rib structure, and the connection between the first connecting rib structure and the frame is located between the first position and the second position; and the connection between the first connecting rib structure and the frame is located between the first connection point and the second connection point of the first radiator.

[0030] In a second aspect, an electronic device is provided, comprising: a floor; a frame, comprising a first position, a second position, a third position and a fourth position arranged in sequence, the frame being coupled to the floor at the first position and the fourth position, and the frame having a first gap and a second gap respectively at the second position and the third position; an antenna, the antenna comprising: a first radiator, a second radiator and a third radiator, the first radiator being a conductive portion of the frame between the first position and the second position, the second radiator being a conductive portion of the frame between the second position and the third position, and the third radiator being a conductive portion of the frame between the third position and the fourth position; a first feeding circuit, a second feeding circuit, a third feeding circuit and a fourth feeding circuit, the first radiator comprising a first feeding point, the second radiator comprising a second feeding point and a third feeding point, the third radiator comprising a fourth feeding point, the first feeding circuit being coupled to the first feeding point, the second feeding circuit being coupled to the second feeding point, the third feeding circuit being coupled to the third feeding point, and the fourth feeding circuit being coupled to the fourth Feed point coupling, the first feeding circuit and the fourth feeding circuit are used to feed electrical signals in a first frequency band, and the second feeding circuit and the third feeding circuit are used to feed electrical signals in a second frequency band; a first grounding control circuit and a second grounding control circuit, the second radiator includes a first connection point and a second connection point, the first connection point is located between the second position and the second connection point, the second feeding point is located between the first position and the first connection point, and the third feeding point is located between the third position and the second connection point, the first end of the first grounding control circuit is coupled to the first connection point, the second end of the first grounding control circuit is coupled to the floor, the first end of the second grounding control circuit is coupled to the second connection point, and the second end of the second grounding control circuit is coupled to the floor; wherein the first radiator and the third radiator are used to generate a first resonance corresponding to the first frequency band, and the second radiator, the first grounding control circuit and the second grounding control circuit are used to generate a second resonance corresponding to the second frequency band, and the resonance point frequency of the second resonance is higher than the resonance point frequency of the first resonance.

[0031] In combination with the second aspect, in some implementations of the second aspect, the electronic device also includes a middle frame, the middle frame includes the frame and the middle plate, wherein the middle plate is electrically connected to the floor; wherein the frame and the middle plate are connected through a first connecting rib structure, and the connection between the first connecting rib structure and the frame is located between the first position and the second position; and the connection between the first connecting rib structure and the frame is located between the first connection point and the second connection point of the first radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic diagram of an electronic device 10 provided in an embodiment of the present application.

[0033] FIG2 is a schematic diagram showing the structure of the common mode of an antenna provided in the present application and the corresponding distribution of current and electric field.

[0034] FIG3 is a schematic diagram showing the structure of a differential mode of an antenna provided in the present application and the corresponding distribution of current and electric field.

[0035] FIG4 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0036] FIG. 5 is an S-parameter simulation result of the antenna 100 in the electronic device 10 shown in FIG. 4 .

[0037] FIG. 6 shows simulation results of the system efficiency and radiation efficiency of the antenna 100 in the electronic device 10 shown in FIG. 4 .

[0038] FIG7 is a directional diagram of an antenna provided by the present application generated by a line CM mode.

[0039] FIG8 is a directional diagram of an antenna provided by the present application generated by a line DM mode.

[0040] FIG9 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0041] FIG10 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0042] FIG11 is a schematic diagram of current distribution when the first connection point and the second connection point of the antenna 200 shown in FIG9 are coupled with the floor.

[0043] FIG12 is a directional diagram of the antenna 200 shown in FIG9 in the case where the first connection point and the second connection point are directly coupled to the floor.

[0044] FIG13 is a schematic diagram of current distribution when the antenna 200 shown in FIG9 is coupled to the floor through inductance at the first connection point and the second connection point.

[0045] FIG14 is a directional diagram of the antenna 200 shown in FIG9 when the first connection point and the second connection point are coupled to the floor through inductance.

[0046] FIG15 is a schematic diagram of current distribution when the antenna 200 shown in FIG9 is coupled to the floor through capacitance at the first connection point and the second connection point.

[0047] FIG16 is a directional diagram of the antenna 200 shown in FIG9 in which the first connection point and the second connection point are coupled to the floor through capacitance.

[0048] FIG17 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0049] FIG18 is an S-parameter simulation result of the antenna shown in FIG17 .

[0050] FIG19 is a schematic diagram of current distribution of the antenna shown in FIG17 at the first resonance point (2 GHz).

[0051] FIG20 is a schematic diagram of current distribution of the antenna shown in FIG17 at the second resonance point (3.6 GHz).

[0052] FIG21 is a directional diagram of the antenna shown in FIG17 at the resonance point (2 GHz) of the first resonance.

[0053] FIG22 is a directional diagram of the antenna shown in FIG17 at the resonance point (3.6 GHz) of the second resonance.

[0054] FIG23 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0055] FIG24 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0056] FIG25 is a directional diagram of the antenna shown in FIG24 at the first resonant point (2 GHz) when an electrical signal is fed into the antenna through the first feeding point.

[0057] FIG26 is a directional diagram of the antenna shown in FIG24 at the second resonant point (3.6 GHz) when an electrical signal is fed into the first feeding point of the antenna.

[0058] FIG27 is a directional diagram of the antenna shown in FIG24 at the first resonant point (2 GHz) when an electrical signal is fed into the antenna through the second feeding point.

[0059] FIG28 is a directional diagram of the antenna shown in FIG24 at the second resonant point (3.6 GHz) when an electrical signal is fed into the second feeding point of the antenna.

[0060] FIG29 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0061] FIG30 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0062] FIG31 is a schematic diagram of S parameters of the antenna shown in FIG29 .

[0063] FIG32 is a diagram showing simulation results of the system efficiency of the antenna shown in FIG29.

[0064] FIG33 is a directional diagram of the antenna shown in FIG29 at the first resonant point (2 GHz) when an electrical signal is fed into the antenna through the third feeding point.

[0065] FIG34 is a directional diagram of the antenna shown in FIG29 at the second resonant point (3.6 GHz) when an electrical signal is fed into the first feeding point of the antenna.

[0066] FIG35 is a directional diagram of the antenna shown in FIG29 at the first resonant point (2 GHz) when an electrical signal is fed into the antenna through the fourth feeding point.

[0067] FIG36 is a directional diagram of the antenna shown in FIG29 at the second resonant point (3.6 GHz) when an electrical signal is fed into the second feeding point of the antenna.

[0068] FIG37 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0069] FIG38 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0070] FIG39 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0071] FIG40 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0072] The technical solution in this application will be described below with reference to the accompanying drawings.

[0073] It should be understood that the term "and / or" as used herein is simply a term used to describe the existence of three possible relationships between related objects. For example, "A and / or B" can represent the existence of A alone, the existence of both A and B, and the existence of B alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0074] When used in this application, "within the range of...", unless it is specifically stated that the end value is not included, it is assumed that both end values ​​of the range are included. For example, in the range of 1 to 5, the two values ​​1 and 5 are included.

[0075] Coupling: can be understood as direct coupling and / or indirect coupling, and "coupling connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be referred to as "electrical connection", which is understood as the physical contact and electrical conduction between components; it can also be understood as the form in which different components in the circuit structure are connected through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals; "indirect coupling" can be understood as two conductors being electrically conductive in an airless / non-contact manner. In one embodiment, indirect coupling can also be referred to as capacitive coupling, for example, signal transmission is achieved by forming an equivalent capacitance through coupling between the gap between two conductive parts.

[0076] Component / device: includes at least one of lumped component / device and distributed component / device.

[0077] Lumped component / device: This refers to all components whose size is much smaller than the wavelength relative to the circuit's operating frequency. For a signal, the component's characteristics remain constant at all times, regardless of frequency.

[0078] Distributed components / devices: Unlike lumped components, if the size of the component is similar to or larger than the wavelength relative to the circuit operating frequency, then when the signal passes through the component, the characteristics of each point of the component itself will vary due to changes in the signal. At this time, the component as a whole cannot be regarded as a single entity with fixed characteristics, but should be called a distributed component.

[0079] Capacitance: This can be understood as lumped capacitance and / or distributed capacitance. Lumped capacitance refers to capacitive components, such as capacitors; distributed capacitance (or distributed capacitance) refers to the equivalent capacitance formed by two conductive parts separated by a certain gap.

[0080] Inductance: This can be understood as lumped inductance and / or distributed inductance. Lumped inductance refers to inductive components, such as inductors; distributed inductance (or distributed inductance) refers to the equivalent inductance formed by a certain length of conductive material.

[0081] Radiator: A device in an antenna used to receive / send electromagnetic wave radiation. In some cases, the narrow meaning of "antenna" is the radiator, which converts the guided wave energy from the transmitter into radio waves, or converts radio waves into guided wave energy, used to radiate and receive radio waves. The modulated high-frequency current energy (or guided wave energy) generated by the transmitter is transmitted to the transmitting radiator via the feeder line, where it is converted into a certain polarized electromagnetic wave energy and radiated in the desired direction. The receiving radiator converts the electromagnetic wave energy of a certain polarization from a specific direction in space into modulated high-frequency current energy and transmits it to the receiver input via the feeder line.

[0082] The radiator may include a conductor with a specific shape and size, such as a linear or sheet shape, etc., and the present application does not limit the specific shape. In one embodiment, the linear radiator can be simply referred to as a linear antenna. In one embodiment, the linear radiator can be implemented by a conductive frame, and can also be called a frame antenna. In one embodiment, the linear radiator can be implemented by a bracket conductor, and can also be called a bracket antenna. In one embodiment, the wire diameter (for example, including thickness and width) of the linear radiator, or the radiator of the linear antenna is much smaller than the wavelength (for example, the wavelength of the medium) (for example, less than 1 / 16 of the wavelength), and the length can be comparable to the wavelength (for example, the wavelength of the medium) (for example, the length is about 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). The main forms of linear antennas include dipole antennas, half-wave oscillator antennas, monopole antennas, loop antennas, and inverted F antennas (also known as IFA, Inverted F Antenna). For example, for a dipole antenna, each dipole antenna typically includes two radiating branches, and each branch is fed by a feeding portion from the feeding end of the radiating branch. For example, an inverted-F antenna (IFA) can be regarded as a monopole antenna with a ground path added. The IFA antenna has a feeding point and a grounding point, and is called an inverted-F antenna because its side view is an inverted-F shape. 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, Planar Inverted F Antenna). In one embodiment, the sheet radiator may be implemented by a planar conductor (such as a conductive sheet or a conductive coating, etc.). In one embodiment, the sheet radiator may include a conductive sheet, such as a copper sheet, etc. In one embodiment, the sheet radiator may include a conductive coating, such as a silver paste, etc. The shape of the sheet radiator includes circular, rectangular, annular, etc., and the present application does not limit the specific shape. The structure of a microstrip antenna generally consists of a dielectric substrate, a radiator, and a floor, wherein the dielectric substrate is arranged between the radiator and the floor.

[0083] The radiator may also include a slot or slot formed in a conductor, for example, a closed or semi-closed slot or slot formed in a grounded conductor surface. In one embodiment, a slotted or slotted radiator may be referred to as a slot antenna or slot antenna. In one embodiment, the radial dimension (e.g., including the width) of the slot or slot of the slot antenna / slot antenna is much smaller than the wavelength (e.g., the dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), and the length dimension may be comparable to the wavelength (e.g., the dielectric wavelength) (e.g., the length is 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 slot may be referred to as a closed slot antenna. In one embodiment, a radiator with a semi-closed slot or slot (e.g., a closed slot or slot with an additional opening) may be referred to as an open slot antenna. In some embodiments, the slot is elongated. In some embodiments, the slot is approximately half a wavelength (e.g., the dielectric wavelength). In some embodiments, the slot is approximately an integer multiple of the wavelength (e.g., one wavelength). In some embodiments, the slot can be fed with a transmission line spanning one or both sides, thereby exciting a radio frequency electromagnetic field in the slot and radiating electromagnetic waves into space. In one embodiment, the radiator of a slot antenna or slot antenna can be implemented as a conductive frame with both ends grounded, also known as a frame antenna. In this embodiment, the slot antenna or slot antenna can be considered to include a linear radiator spaced from the floor and grounded at both ends, thereby forming a closed or semi-enclosed slot or slot. In one embodiment, the radiator of a slot antenna or slot antenna can be implemented as a bracket conductor with both ends grounded, also known as a bracket antenna.

[0084] The feed circuit is a combination of all circuits used for receiving and transmitting radio frequency signals. The feed circuit may include a transceiver and an RF front end circuit. In some cases, the "feed circuit" is understood in a narrow sense as a radio frequency chip (RFIC, Radio Frequency Integrated Circuit), and the RFIC can be considered to include an RF front end chip and a transceiver. The feed circuit has the function of converting radio waves (e.g., radio frequency signals) and electrical signals (e.g., digital signals). Generally, it is considered to be part of the radio frequency.

[0085] 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 and test the characteristics of the RF front-end circuit or antenna radiator through the cable. The RF front-end circuit can be considered as the circuit portion coupled between the test socket and the transceiver.

[0086] In some embodiments, the RF front-end circuit may be integrated into a RF front-end chip in the electronic device, or the RF front-end circuit and the transceiver may be integrated into a RF chip in the electronic device.

[0087] It should be understood that any two of the first / second / ...Nth feeding circuits in the present application can share the same transceiver, for example, transmitting signals through a radio frequency channel in a transceiver (for example, a port (pin) of a radio frequency chip); they can also share a radio frequency front-end circuit, for example, processing signals through a switch or amplifier in a radio frequency front-end.

[0088] It should also be understood that two feeding circuits in the first / second / ...Nth feeding circuit in the present application usually correspond to two radio frequency test sockets in the electronic device.

[0089] 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 socket 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 a switch and / or an electronic component; the switch may be an electronic component used to switch the coupling connection of the radiator. The matching circuit performs impedance matching and / or frequency tuning functions. Generally, it is considered to be part of the antenna.

[0090] The grounding structure / feeding structure may include a connector, such as a metal spring, through which the radiator is coupled to the floor / feeding structure is coupled to the feeding circuit. In some embodiments, the feeding structure may include a transmission line / feeding line, and the grounding structure may include a grounding wire.

[0091] End / point: The "end / point" in the first end / second end / feeding end / grounding end / feeding point / grounding point / connection point of an antenna radiator should not be narrowly understood as an end point or end portion that is physically disconnected from other radiators. It can also be considered as a point or section on a continuous radiator. In one embodiment, an "end / point" may include a connection / coupling area on an antenna radiator that is coupled to other conductive structures. For example, a feeding end / feeding point may be a coupling area on an antenna radiator that is coupled to a feeding structure or feeding circuit (for example, an area facing a portion of the feeding circuit). For another example, a grounding end / grounding point may be a connection / coupling area on an antenna radiator that is coupled to a grounding structure or grounding circuit.

[0092] Open end, closed end: In some embodiments, the open end and the closed end are, for example, relative to whether they are grounded. The closed end is grounded, and the open end is not grounded. In some embodiments, the open end and the closed end are, for example, relative to other conductors. The closed end is electrically connected to other conductors, and the open end is not electrically connected to other conductors. In one embodiment, the open end can also be referred to as a floating end, a free end, an open end, or an open-circuit end. In one embodiment, the closed end can also be referred to as a grounded end or a short-circuit end. It should be understood that in some embodiments, other conductors can be coupled through the open end to transfer coupling energy (which can be understood as transferring current).

[0093] In some embodiments, the "closed end" can also be understood from the perspective of current distribution. The closed end or the grounded end can be understood as a point with larger current on the radiator, or as a point with smaller electric field on the radiator. In one embodiment, the current distribution characteristics of larger current / smaller electric field can be maintained by coupling electronic devices (for example, capacitors, inductors, etc.) through the closed end. In one embodiment, the current distribution characteristics of larger current / smaller electric field can be maintained by opening a gap at or near the closed end (for example, a gap filled with insulating material).

[0094] In some embodiments, the understanding of "open end" can also be viewed from the perspective of current distribution. The open end or floating end can be understood as a point with low current on the radiator, or as a point with high electric field on the radiator. In one embodiment, coupling electronic devices (for example, capacitors, inductors, etc.) through the open end can maintain the current distribution characteristics of the low current point / high electric field point.

[0095] It should be understood that coupling the radiator end at a gap (from the perspective of the radiator structure, it is similar to the radiator at the opening of the open end or the suspended end) with electronic devices (for example, capacitors, inductors, etc.) can make the radiator end a point with larger current / smaller 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.

[0096] The “suspended radiator” mentioned in the embodiments of the present application means that the radiator is not directly connected to the feed line / feed branch and / or the ground line / ground branch, but is fed and / or grounded through indirect coupling.

[0097] It should be understood that the "suspended" in "suspended end" and "suspended radiator" does not mean that there is no structure around the radiator to support it. In one embodiment, the suspended radiator can be, for example, a radiator disposed on the inner surface of the insulating back cover.

[0098] The current same direction / reverse direction mentioned in the embodiments of the present application should be understood as the direction of the main current on the conductor on the same side is the same direction / reverse direction. For example, when stimulating a unidirectional distributed current on a conductor that is bent or ring-shaped (for example, the current path is also bent or ring-shaped), it should be understood that, for example, the main currents stimulated on the conductors on both sides of the ring conductor (for example, a conductor surrounding a gap, on the conductors on both sides of the gap) are opposite in direction, which still falls within the definition of the unidirectional distributed current in the embodiments of the present application. In one embodiment, the current same direction on a conductor can refer to the current on the conductor having no reversal point. In one embodiment, the current reverse on a conductor can refer to the current on the conductor having at least one reversal point. In one embodiment, the current same direction on two conductors can refer to the current on both conductors having no reversal point and flowing in the same direction. In one embodiment, the current reverse on two conductors can refer to the current on both conductors having no reversal point and flowing in opposite directions. The current same direction / reversal on multiple conductors can be understood accordingly.

[0099] The electric field in the embodiments of the present application is in the same direction or opposite direction, which should be understood as the direction of the main electric field generated by the conductor in the space (for example, the electric field between the conductor and the floor) being in the same direction or opposite direction. For example, when a unidirectional distributed electric field is excited on a curved or ring-shaped conductor (for example, the gap formed between the floor and the conductor is also curved or ring-shaped), it should be understood that, for example, the direction of the electric field in the gap is from the floor to the conductor, or from the conductor to the floor. Although the main electric fields excited in the gaps on both sides of the ring-shaped conductor (for example, the gaps on both sides of the gap of the conductor surrounding a gap) are opposite in direction, they still fall within the definition of unidirectional distributed electric fields in the embodiments of the present application. In one embodiment, the electric field in the same direction between a conductor and the floor can mean that there is no reversal point between the electric field between the conductor and the floor. In one embodiment, the electric field in the opposite direction between a conductor and the floor can mean that there is at least one reversal point between the electric field between the conductor and the floor. In one embodiment, the electric field in the same direction between two conductors and the floor can mean that there is no reversal point between the electric field between the two conductors and the floor, and the electric fields between the two conductors and the floor radiate in the same direction (for example, the positive direction of the z-axis). In one embodiment, the electric fields between two conductors and the floor are in opposite directions, which means that the electric fields between the two conductors and the floor have no reverse points and flow in opposite directions. The electric fields between multiple conductors and the floor can be understood to be in the same or opposite directions accordingly.

[0100] Resonance / resonance frequency: The resonant frequency is also called the resonance frequency. The resonant frequency may refer to the frequency at which the imaginary part of the antenna input impedance is zero. The resonant frequency may 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 point frequency. The return loss characteristic of the center frequency may be less than -20dB. It should be understood that, unless otherwise specified, the first resonance in the "first resonance generated by the antenna / radiator" mentioned in this application should be the fundamental mode resonance generated by the antenna / radiator, or the lowest frequency resonance generated by the antenna / radiator.

[0101] Resonance frequency band / communication frequency band / operating frequency band: Regardless of the type of antenna, it always operates within a certain frequency range (bandwidth). For example, an antenna that supports the B40 frequency band operates between 2300MHz and 2400MHz, or in other words, the antenna's operating frequency band includes the B40 frequency band. The frequency range that meets the required specifications can be considered the antenna's operating frequency band.

[0102] Electrical length: It can refer to the ratio of physical length (i.e. mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave. The electrical length can satisfy the following formula:

[0103] Where L is the physical length and λ is the wavelength of the electromagnetic wave.

[0104] Wavelength: Or operating wavelength, this 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, if the center frequency of the B1 uplink frequency band (resonant frequency 1920MHz to 1980MHz) is 1955MHz, the operating wavelength can be the wavelength calculated using 1955MHz. "Operating wavelength" is not limited to the center frequency; it can also refer to the wavelength corresponding to a non-center frequency of the resonant frequency or operating frequency band.

[0105] It should be understood that the wavelength of the radiation signal in air can be calculated as follows: (wavelength in air, or wavelength in vacuum) = speed of light / frequency, where frequency is the frequency of the radiation signal (MHz) and the speed of light can be taken as 3×108 m / s. The wavelength of the radiation signal in the medium can be calculated as follows: medium Wherein, ε is the relative dielectric constant of the medium. The wavelength in the embodiments of the present application generally refers to the dielectric wavelength, which can be the dielectric wavelength corresponding to the center frequency of the resonant frequency, or the dielectric wavelength corresponding to the center frequency of the working frequency band supported by the antenna. For example, assuming that the center frequency of the B1 uplink frequency band (resonant frequency is 1920MHz to 1980MHz) is 1955MHz, the wavelength can be the dielectric wavelength calculated using the frequency of 1955MHz. Not limited to the center frequency, "dielectric wavelength" can also refer to the dielectric wavelength corresponding to the non-center frequency of the resonant frequency or the working frequency band. For ease of understanding, the dielectric wavelength mentioned in the embodiments of the present application can be simply calculated by the relative dielectric constant of the medium filled on one or more sides of the radiator.

[0106] Those skilled in the art will understand that efficiency is generally expressed as a percentage, which has a corresponding conversion relationship with dB. The closer the efficiency is to 0 dB, the better the efficiency of the antenna.

[0107] Antenna pattern: Also known as radiation pattern. It is a graph showing how the relative field strength (normalized modulus) of the antenna's radiation field changes with direction at a certain distance from the antenna (far field). It is usually represented by two mutually perpendicular plane patterns passing through the antenna's direction of maximum radiation.

[0108] Antenna patterns typically have multiple radiation beams. The beam with the strongest radiation intensity is called the main lobe, while the remaining beams are called side lobes. Among the side lobes, those in the opposite direction of the main lobe are also called back lobes.

[0109] Antenna polarization direction: At a given point in space, the electric field strength E (vector) is a function of time t. As time passes, the endpoints of the vector periodically trace a trajectory in space. If this trajectory is straight and perpendicular to the ground, it is called vertical polarization. If it is horizontal to the ground, it is called horizontal polarization. If this trajectory is elliptical or circular and rotates clockwise or to the right as viewed along the propagation direction, it is called right-hand circular polarization (RHCP). If it rotates counterclockwise or to the left as viewed along the propagation direction, it is called left-hand circular polarization (LHCP).

[0110] Antenna return loss: This can be understood as the ratio of the signal power reflected back to the antenna port by the antenna circuit to the antenna port's transmitted power. The smaller the reflected signal, the larger the signal radiated from the antenna into space, and the greater the antenna's radiation efficiency. The larger the reflected signal, the smaller the signal radiated from the antenna into space, and the lower the antenna's radiation efficiency.

[0111] Antenna return loss can be expressed using the S11 parameter, a type of S parameter. S11 represents the reflection coefficient and characterizes the antenna's transmission efficiency. The S11 parameter is typically negative. A smaller S11 parameter indicates lower antenna return loss and less energy reflected back from the antenna itself, meaning more energy actually enters the antenna and higher system efficiency. A larger S11 parameter indicates greater antenna return loss and lower system efficiency.

[0112] It should be noted that in engineering, an S11 value of -6dB is generally used as a standard. When the S11 value of an antenna is less than -6dB, it can be considered that the antenna can work normally, or the antenna can be considered to have good transmission efficiency.

[0113] Ground (GND): can generally refer to at least a part of any grounding layer, grounding plate, or grounding metal layer in an electronic device (such as a mobile phone), or at least a part of any combination of any of the above grounding layers, grounding plates, or grounding components, etc. "Ground" can be used for grounding components in an electronic device. In one embodiment, "ground" can be the grounding layer of a circuit board of an electronic device, or it can be the grounding plate formed by the middle frame of the electronic device, or the grounding metal layer formed by the metal film under the screen. In one embodiment, the circuit board can be a printed circuit board (PCB), such as an 8-layer, 10-layer, or 12 to 14-layer board having 8, 10, 12, 13, or 14 layers of conductive material, or an element separated and electrically insulated by a dielectric layer or insulating layer such as fiberglass, polymer, etc. In one embodiment, the circuit board includes a dielectric substrate, a grounding layer, and a routing layer, and the routing layer and the grounding layer are electrically connected through vias. In one embodiment, components such as a display, touch screen, input buttons, transmitter, processor, memory, battery, charging circuit, and system-on-chip (SoC) structures can be mounted on or connected to a circuit board, or electrically connected to a trace layer and / or ground layer in the circuit board. For example, a radio frequency source can be located on a trace layer.

[0114] Any of the above-mentioned grounding layers, grounding plates, or grounding metal layers are made of a conductive material. In one embodiment, the conductive material can be any of the following: copper, aluminum, stainless steel, brass, and alloys thereof, 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 and tin-plated copper on an insulating substrate, cloth impregnated with graphite powder, a graphite-coated substrate, a copper-plated substrate, a brass-plated substrate, and an aluminum-plated substrate. Those skilled in the art will appreciate that the grounding layer / grounding plate / grounding metal layer can also be made of other conductive materials.

[0115] Grounding refers to coupling to the ground / floor in any manner. In one embodiment, grounding can be achieved through physical grounding, such as physical grounding at a specific location on the frame using a portion of the midframe's structural components (or referred to as a physical ground). In one embodiment, grounding can be achieved through device grounding, such as through a series or parallel connection of a capacitor, inductor, or resistor (or referred to as a device ground).

[0116] The technical solutions of the embodiments of the present application will be described below with reference to the accompanying drawings.

[0117] As shown in FIG1 , 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, cover 13 may be a glass cover or may be replaced with a cover made of other materials, such as a PET (Polyethylene terephthalate) material.

[0118] The cover plate 13 may be disposed closely against the display module 15 , and may be mainly used to protect the display module 15 and prevent dust.

[0119] In one embodiment, the display module 15 may include a liquid crystal display panel (LCD), a light emitting diode (LED) display panel, or an organic light-emitting diode (OLED) display panel, etc., which is not limited in the embodiment of the present application.

[0120] The middle frame 19 mainly supports the entire device. FIG1 shows that the PCB 17 is arranged between the middle frame 19 and the back cover 21. It should be understood that in one embodiment, the PCB 17 can also be arranged between the middle frame 19 and the display module 15. This embodiment of the present application does not limit this. The printed circuit board PCB 17 can be made of a flame-resistant material (FR-4) dielectric board, a Rogers dielectric board, a mixed dielectric board of Rogers and FR-4, and so on. Here, FR-4 is a code for a grade of flame-resistant material, and the Rogers dielectric board is a high-frequency board. Electronic components, such as radio frequency chips, are carried on the PCB 17. In one embodiment, a metal layer can be provided on the printed circuit board PCB 17. The metal layer can be used to ground the electronic components carried on the printed circuit board PCB 17, and can also be used to ground other components, such as bracket antennas, frame antennas, etc. The metal layer can be called a floor, a grounding plate, or a grounding layer. In one embodiment, the metal layer can be formed by etching metal on the surface of any layer of the dielectric board in the PCB 17. In one embodiment, the metal layer used for grounding can be provided 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 the edge of its ground layer. In one embodiment, the metal middle frame 19 can also be used to ground the aforementioned components. The electronic device 10 may also have other floor / grounding plates / grounding layers, as previously described and will not be further described here.

[0121] The electronic device 10 may further include a battery (not shown). 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, and this is not limited in this embodiment of the present application. In some embodiments, the PCB 17 is divided into a main board and a sub-board, and the battery may be disposed between the main board and the sub-board. The main board may be disposed between the middle frame 19 and the upper edge of the battery, and the sub-board may be disposed between the middle frame 19 and the lower edge of the battery.

[0122] The electronic device 10 may further include a frame 11, which may be formed of a conductive material such as metal. The frame 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 frame 11 may have four sides surrounding the display module 15 to help secure the display module 15.

[0123] In one implementation, the frame 11 made of a conductive material can directly serve as the conductive frame of the electronic device 10, for example, forming a metallic frame appearance, suitable for a metallic industrial design (ID). In another implementation, the outer surface of the frame 11 can be made of a conductive material, such as a metal material, thereby forming a metallic frame appearance. In these implementations, the conductive portion of the frame 11 can serve as an antenna radiator for the electronic device 10.

[0124] In another implementation, the outer surface of the frame 11 can also be a non-conductive material, such as plastic, to form the appearance of a non-metallic frame, which is suitable for non-metallic ID. In one implementation, the inner surface of the frame 11 may include a conductive material, such as a metal material. In this implementation, the conductive portion of the frame 11 can be used as an antenna radiator of the electronic device 10. It should be understood that the radiator provided on the inner surface of the frame 11 (or the conductive material on the inner surface) is arranged in contact with the non-conductive material of the frame 11 to facilitate antenna radiation, and both the conductive material and the non-conductive material should be regarded as part of the frame 11.

[0125] The middle frame 19 may include a border 11, and the middle frame 19 including the border 11 is an integral part that can support the electronic devices in the whole machine. The cover 13 and the back cover 21 are respectively covered along the upper and lower edges of the border to form a shell or housing (housing) of the electronic device. In one embodiment, the cover 13, the back cover 21, the border 11 and / or the middle frame 19 can be collectively referred to as the shell or housing of the electronic device 10. It should be understood that "shell or housing" can be used to refer to part or all of any one of the cover 13, the back cover 21, the border 11 or the middle frame 19, or to part or all of any combination of the cover 13, the back cover 21, the border 11 or the middle frame 19.

[0126] The frame 11 on the middle frame 19 can at least partially serve as an antenna radiator to transmit and receive radio frequency signals. A gap can exist between this portion of the frame serving as the radiator and the rest of the middle frame 19 to ensure a good radiation environment for the antenna radiator. In one embodiment, the middle frame 19 can be provided with an aperture in this portion of the frame serving as the radiator to facilitate antenna radiation.

[0127] Alternatively, the frame 11 may not be considered as part of the middle frame 19. In one embodiment, the frame 11 may be connected to the middle frame 19 and formed as one piece. In another embodiment, the frame 11 may include a protrusion extending inward to be connected to the middle frame 19, for example, by means of a shrapnel, a screw, welding, etc. The protrusion of the frame 11 can also be used to receive a feed signal, so that at least a portion of the frame 11 serves as a radiator of the antenna to receive / transmit radio frequency signals. There may be a gap 42 between this portion of the frame that serves as the radiator and the middle frame 30, thereby ensuring that the antenna radiator has a good radiation environment, so that the antenna has a good signal transmission function.

[0128] The back cover 21 can be made of metal, non-conductive materials such as glass or plastic, or a combination of conductive and non-conductive materials. In one embodiment, the conductive back cover 21 can replace the middle frame 19 and integrate with the frame 11 to support the electronic components within the device.

[0129] In one embodiment, the middle frame 19 and / or the conductive parts in the back 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 middle frame.

[0130] The antenna of the electronic device 10 can also be set in the frame 11. When the frame 11 of the electronic device 10 is a non-conductive material, the antenna radiator can be located in the electronic device 10 and arranged along the frame 11. For example, the antenna radiator is set close to the frame 11 to minimize the volume occupied by the antenna radiator and be closer to the outside of the electronic device 10 to achieve better signal transmission effect. It should be noted that the antenna radiator is set close to the frame 11 means that the antenna radiator can be set close to the frame 11, or it can be set close to the frame 11, for example, there can be a certain small gap between the antenna radiator and the frame 11.

[0131] The antenna of electronic device 10 may also be disposed within the housing, such as a bracket antenna or millimeter-wave antenna (not shown in FIG1 ). The clearance for the antenna disposed within the housing can be provided by a slot / opening in any of the middle frame, and / or the frame, and / or the back cover, and / or the display screen, or by a non-conductive gap / aperture formed between any of these. The antenna clearance ensures the antenna's radiation characteristics. It should be understood that the antenna clearance can be a non-conductive area formed by any conductive component within electronic device 10, through which the antenna radiates signals to the outside world. In one embodiment, antenna 40 may 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). In one embodiment, the antenna may also be a transparent structure embedded within the screen of electronic device 10, such that the antenna is a transparent antenna unit embedded within the screen of electronic device 10.

[0132] FIG. 1 only schematically illustrates some components of the electronic device 10 , and the actual shapes, sizes, and structures of these components are not limited by FIG. 1 .

[0133] It should be understood that in the embodiments of the present application, the surface where the display screen of the electronic device is located can be considered as the front surface, the surface where the back cover is located can be considered as the back surface, and the surface where the frame is located can be considered as the side surface.

[0134] It should be understood that in the embodiments of the present application, when a user holds an electronic device (usually vertically and facing the screen), the electronic device is located at a position having a top, a bottom, a left side, and a right side. It should be understood that in the embodiments of the present application, when a user holds an electronic device (usually vertically and facing the screen), the electronic device is located at a position having a top, a bottom, a left side, and a right side.

[0135] The present application provides an electronic device, including an antenna. The antenna uses the conductive part of the frame of the electronic device as a radiator, and the radiator is coupled to the floor at a first connection point and a second connection point through a first ground control circuit and a second ground control circuit. By setting the first ground control circuit and the second ground control circuit, the radiator can be coupled to the floor in different states at the first connection point, and the radiator can be coupled to the floor in different states at the second connection point, so that the radiator is used to generate a first resonance corresponding to the first frequency band and a second resonance corresponding to the second frequency band. The maximum radiation direction of the directional pattern generated by the antenna in the first frequency band and the maximum radiation direction of the directional pattern generated in the second frequency band are slightly different, which meets the requirement of angular alignment of the antenna in the first frequency band and the second frequency band, so that the electronic device has good satellite communication performance.

[0136] First, Figures 2 and 3 will introduce the four antenna modes involved in this application. Figure 2 is a schematic diagram of the structure of the common mode mode of an antenna provided by this application and the corresponding current and electric field distribution. Figure 3 is a schematic diagram of the structure of the differential mode mode of another antenna provided by this application and the corresponding current and electric field distribution. The antenna radiator in Figures 2 and 3 is open at both ends, and its common mode mode and differential mode mode can be called a line common mode mode and a line differential mode mode, respectively.

[0137] It should be understood that the “common-differential mode” or “CM-DM mode” in this application refers to a line common mode mode and a line differential mode mode generated on the same radiator.

[0138] 1. Common mode (CM) mode

[0139] (a) in Figure 2 shows that the radiator of the antenna 40 is open at both ends and is connected to a feeding circuit (not shown) at the middle position 41. In one embodiment, the feeding form of the antenna 40 adopts symmetrical feed. The feeding circuit can be connected to the middle position 41 of the antenna 40 through a feeding line 42. It should be understood that symmetrical feeding can be understood as one end of the feeding circuit being connected to the radiator and the other end being grounded, wherein the connection point between the feeding circuit and the radiator (feeding point) is located at the center of the radiator. The center of the radiator can be, for example, the midpoint of the geometric structure, or the midpoint of the electrical length (or an area within a certain range near the above midpoint).

[0140] 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. For example, the connection between the feed line 42 and the antenna 40 covers the middle position 41 .

[0141] (b) in FIG2 shows the current and electric field distribution of the antenna 40. As shown in (b) in FIG2, the current is distributed in opposite directions on both sides of the middle position 41, for example, symmetrically; the electric field is distributed in the same direction on both sides of the middle position 41. As shown in (b) in FIG2, the current at the feed line 42 is distributed in the same direction. Based on the same direction distribution of the current at the feed line 42, the feeding shown in (a) in FIG2 can be called line CM feeding. Based on the opposite distribution of the current on both sides of the connection between the radiator and the feed line 42, the antenna mode shown in (b) in FIG2 can be called a line CM mode (also referred to as a CM mode for short, for example, for a linear antenna, the CM mode refers to a line CM mode). The current and electric field shown in (b) in FIG2 can be respectively referred to as the current and electric field of the line CM mode.

[0142] The current is stronger at the center 41 of the antenna 40 (the highest current point is near the center 41 of the antenna 40) and weaker at both ends of the antenna 40, as shown in FIG2(b). The electric field is weaker at the center 41 of the antenna 40 and stronger at both ends of the antenna 40.

[0143] It should be understood that the current peak point may correspond to the electric field zero point, for example, there is a one-to-one correspondence between the current peak point and the electric field zero point. The current peak point can be understood as the point where the intensity of the radiator's current is the maximum, and correspondingly, it can be understood as the point where the intensity of the electric field generated by the radiator (for example, between the radiator and the floor) is the minimum.

[0144] 2. Line differential mode (DM) mode

[0145] As shown in Figure 3(a), the left and right ends of the two radiators of antenna 50 are open, and a feed circuit is connected at a center position 51. In one embodiment, antenna 50 uses an anti-symmetrical feed. One end of the feed circuit is connected to one of the radiators via a feed line 52, and the other end of the feed circuit is connected to the other radiator via a feed line 52. Center position 51 can be the geometric center of antenna 50 or the gap formed between the radiators.

[0146] It should be understood that the "center-antisymmetric feeding" mentioned in this application can be understood as the positive and negative poles of the feed unit being connected to two connection points near the aforementioned midpoint of the radiator. In one embodiment, the signals output by the positive and negative poles of the feed unit have the same amplitude but opposite phases, for example, a phase difference of 180°±10°.

[0147] (b) in FIG3 shows the current and electric field distribution of the antenna 50. As shown in (b) in FIG3, the current is distributed in the same direction on both sides of the middle position 51 of the antenna 50, for example, in an antisymmetric distribution; the electric field is distributed in opposite directions on both sides of the middle position 51. As shown in (b) in FIG3, the current at the feed line 52 is distributed in opposite directions. Based on the opposite distribution of the current at the feed line 52, the feeding shown in (a) in FIG3 can be called line DM feeding. Based on the current being distributed in the same direction on both sides of the connection between the radiator and the feed line 52, the antenna mode shown in (b) in FIG3 can be called a line DM mode (it can also be simply referred to as a DM mode. For example, for a linear antenna, the DM mode refers to a line DM mode). The current and electric field shown in (b) in FIG3 can be respectively referred to as the current and electric field of the line DM mode.

[0148] The current is strong at the center 51 of the antenna 50 (the current is strong near the center 51 of the antenna 50) and weak at both ends of the antenna 50, as shown in FIG3(b). The electric field is weak at the center 51 of the antenna 50 and strong at both ends of the antenna 50.

[0149] It should be understood that the antenna radiator can be understood as a metal structural member that generates radiation, and the number of the radiator can be one, as shown in FIG2 , or two, as shown in FIG3 , which can be adjusted according to actual design or production needs. For example, for the line CM mode, two radiators can be used as shown in FIG3 , with the two ends of the two radiators arranged opposite to each other and separated by a gap. A symmetrical feeding method is adopted at the two ends close to each other, for example, the same feed source signal is fed into the two ends of the two radiators close to each other, and an effect similar to the antenna structure shown in FIG2 can also be obtained. Correspondingly, for the line DM mode, one radiator can be used as shown in FIG2 , with two feeding points set in the middle of the radiator and an antisymmetric feeding method is adopted. For example, if two symmetrical feeding points on the radiator are fed with signals with the same amplitude and opposite phases, an effect similar to the antenna structure shown in FIG3 can also be obtained.

[0150] 3. Line CM-DM mode

[0151] FIG2 and FIG3 above respectively show the line CM mode and line DM mode generated by adopting different feeding methods when both ends of the radiator are open.

[0152] When the antenna uses asymmetric feeding (the feeding point is offset from the center of the radiator, including side feeding or offset feeding), or the radiator's grounding point (where it couples with the floor) is asymmetric (the grounding point is offset from the center of the radiator), the antenna can simultaneously produce a first resonance and a second resonance, corresponding to the linear CM mode and the linear DM mode, respectively. For example, the first resonance corresponds to the linear CM mode, with the current and electric field distributions shown in Figure 2(b). The second resonance corresponds to the linear DM mode, with the current and electric field distributions shown in Figure 3(b).

[0153] FIG4 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0154] As shown in FIG. 4 , the conductive frame 11 of the electronic device 10 may include a first side 131 and a second side 132 intersecting at an angle, and the length of the first side 131 is greater than the length of the second side 132 .

[0155] The second side 132 may have a first position 101 and a second position 102. The frame 11 may have a gap at the first position 101 and the second position 102. The frame between the first position 101 and the second position 102 is a first frame 105. The radiator of the antenna 100 may be the first frame 105.

[0156] The first frame 105 is symmetrical along a virtual axis of the second side 132 , and the lengths of the second sides 132 on both sides of the virtual axis are the same.

[0157] Figures 5 and 6 are simulation results of the antenna 100 in the electronic device 10 shown in Figure 4. Figure 5 shows the S-parameter simulation results of the antenna 100 in the electronic device 10 shown in Figure 4. Figure 6 shows the system efficiency and radiation efficiency simulation results of the antenna 100 in the electronic device 10 shown in Figure 4.

[0158] It should be understood that, based on the structure of the antenna 100 shown in FIG4 , the linear CM mode and the linear DM mode described in the above embodiments are excited by different feeding modes.

[0159] As shown in FIG5 , the antenna can resonate around 2 GHz in both the linear CM mode and the linear DM mode.

[0160] As shown in FIG6 , at the resonance point (2 GHz), the radiation efficiency of the line CM mode is -4.42 dB, the system efficiency is -4.47 dB, and the radiation efficiency of the line DM mode is -1.27 dB, the system efficiency is -1.39 dB.

[0161] It should be understood that for the line CM mode, the transverse mode of the floor can be excited (accounting for more than the longitudinal mode), but the currents corresponding to the transverse modes on the floor will cancel each other out. Therefore, the system efficiency and radiation efficiency of the line CM mode are low.

[0162] As for the line DM mode, the radiation of the antenna in the line DM mode is mainly generated by the radiator (the first frame), and the system efficiency and radiation efficiency are better than those in the line CM mode.

[0163] At the same time, since the radiation of the line CM mode is mainly generated by the floor, as the resonant frequency increases, the current patterns on the floor increase. Due to the increase in current patterns on the floor, different currents will produce radiation in different directions, making it difficult to determine the maximum radiation direction of the antenna's pattern.

[0164] For example, when the radiator operates in line CM mode, due to multiple current modes in the floor, the maximum radiation direction of the antenna's pattern may deviate to the left or right from the top direction of electronic device 10 (e.g., the z-direction), as shown in FIG7 . For simplicity, the example of the pattern of the antenna deviating to the left from the top direction of electronic device 10 (e.g., the z-direction) shown in FIG7 is used as an example. In one embodiment, when the current in the floor is more concentrated on the left (e.g., with greater intensity), the maximum radiation direction of the antenna's pattern deviates to the left from the top direction of electronic device 10.

[0165] It should be understood that when a user is performing satellite navigation or communication, the antenna's maximum radiation direction needs to be pointed toward the satellite to achieve alignment (establishing a communication connection with the satellite). When the maximum radiation direction of the directional pattern generated by the antenna may deviate to the left or right from the top direction of the electronic device 10 (for example, the z direction), the maximum radiation direction of the directional pattern generated by the antenna needs to be directed toward the sky, which causes great inconvenience in use. If the antenna's maximum radiation direction is in the z direction, the antenna's maximum radiation direction points toward the top direction of the electronic device 10 (for example, the z direction), and the user does not need to change the posture of holding the electronic device 10 when aligning.

[0166] In linear DM mode, the antenna's radiation is primarily generated by the radiator (the first frame), and multiple current patterns are not generated on the floor, making it easier to determine the maximum radiation direction of the antenna's pattern. Furthermore, because the current in linear DM mode is primarily concentrated on the radiator (the first frame), it's easy to determine the maximum radiation direction of the antenna's pattern is toward the top of electronic device 10 (e.g., the z-direction). This eliminates the need for the user to change the position they hold electronic device 10 during alignment, as shown in Figure 8.

[0167] FIG9 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0168] As shown in FIG. 9 , the electronic device 10 includes a conductive frame 11 , an antenna 200 and a floor 300 .

[0169] The frame 11 includes a first position 201 and a second position 202. The frame 11 defines a first gap and a second gap at the first position 201 and the second position 202, respectively.

[0170] The antenna 200 includes a first radiator 210 and a first feeding circuit 221. The first radiator 210 is a conductive portion of the frame 11 between the first position 201 and the second position 202. The first radiator 210 includes a first feeding point 211. The first feeding circuit 221 is coupled to the first feeding point 211.

[0171] In one embodiment, the first feeding circuit 221 can be used to feed signals in the first frequency band and the second frequency band. In one embodiment, the antenna 200 can be used as a satellite antenna, the first frequency band can correspond to the transmitting frequency band of the satellite antenna, and the second frequency band can correspond to the receiving frequency band of the satellite antenna.

[0172] Antenna 200 also includes a first grounding control circuit 231 and a second grounding control circuit 232. First radiator 210 includes a first connection point 241 and a second connection point 242. A first end of first grounding control circuit 231 is coupled to first connection point 241, and a second end of first grounding control circuit 231 is coupled to floor 300 for grounding. A first end of second grounding control circuit 232 is coupled to second connection point 242, and a second end of second grounding control circuit 232 is coupled to floor 300 for grounding. First connection point 241 is located between first position 201 and second connection point 242, and second connection point 242 is located between first connection point 241 and second position 202. First feed point 211 is located between first connection point 241 and first position 201.

[0173] It should be understood that the first feeding point 211 located between the first connection point 241 and the first position 201 can be understood to include two endpoints. In one embodiment, the first feeding point 211 and the first connection point 241 can be the same, and the first feeding circuit 221 and the first grounding control circuit 231 are coupled to the first radiator 210 at the same location, for example, electrically connected to the first radiator 210 via the same metal spring.

[0174] The first radiator 210 is configured to generate a first resonance (which may correspond to the first frequency band described above). The first radiator 210, the first ground control circuit 231, and the second ground control circuit 232 are configured to generate a second resonance (which may correspond to the second frequency band described above). The resonant point frequency of the second resonance is higher than the resonant point frequency of the first resonance.

[0175] It should be understood that the first radiator 210 being used to generate the first resonance can be understood as the first radiator 210 being used to generate the first resonance, wherein the length of the first radiator 210 directly affects the first resonance (e.g., the frequency of the resonance point). In one embodiment, the entire conductive portion of the frame of the first radiator 210 between the first position 201 and the second position 202 is used to generate the first resonance. In one embodiment, the first grounding control circuit 231 and the second grounding control circuit 232 can also be used to affect the first resonance (e.g., the frequency of the resonance point). The first radiator 210, the first grounding control circuit 231, and the second grounding control circuit 232 being used to generate the second resonance can be understood as the first radiator 210, the first grounding control circuit 231, and the second grounding control circuit 232 all being used to generate the second resonance, wherein the length of the first radiator 210 and the first grounding control circuit 231 and the second grounding control circuit 232 all directly affect the second resonance (e.g., the frequency of the resonance point). In one embodiment, the locations of the first connection point 241 and the second connection point 242 on the first radiator 210 also affect the second resonance (e.g., the frequency of the resonance point).

[0176] In one embodiment, at the resonance point of the first resonance, the first ground control circuit 231 and the second ground control circuit 232 are in a first circuit state. At the resonance point of the second resonance, the first ground control circuit 231 and the second ground control circuit 232 are in a second circuit state, and the first circuit state and the second circuit state are different.

[0177] In one embodiment, the first circuit state and the second circuit state can be understood as two different states: disconnected (open circuit) and connected (short circuit). In one embodiment, the first circuit state can be understood as the first grounding control circuit 231 and the second grounding control circuit 232 being in this state, and the first radiator 210 and the ground plane 300 at the first connection point 241 and the second connection point 242 being equivalent to being disconnected (the first connection point 241 and the second connection point 242 are not coupled to the ground plane 300). In one embodiment, the second circuit state can be understood as the first grounding control circuit 231 and the second grounding control circuit 232 being in this state, and the first radiator 210 and the ground plane 300 at the first connection point 241 and the second connection point 242 being equivalent to being shorted (the first connection point 241 and the second connection point 242 are coupled to the ground plane 300).

[0178] According to the technical solutions provided in the embodiments of the present application, the first and second grounding control circuits 231 and 232 operate in different states, enabling the antenna 200 to generate first and second resonances through different portions of the first radiator 210. At the first resonance point, the first and second grounding control circuits 231 and 232 are in the first circuit state, allowing the antenna 200 to generate the first resonance through the entire first radiator 210. At the second resonance point, the first and second grounding control circuits 231 and 232 are in the second circuit state, allowing the antenna 200 to generate the second resonance through the first radiator 210 between the first position 201 and the first connection point 241, and between the second position 202 and the second connection point 242. The antenna 200 generates the first and second resonances through the first radiator 210, enabling the electronic device 10 to operate in both the transmit and receive frequency bands used in satellite communications. Furthermore, by reusing the first radiator 210 to generate the first and second resonances, the antenna 200 is compact.

[0179] In one embodiment, the first grounding control circuit 231 or the second grounding control circuit 232 includes at least one of the following circuits: a filtering circuit and a switching circuit. The filtering circuit may include a high-pass low-resistance filter. For example, the filtering circuit is in an off state in a first frequency band and in an on state in a second frequency band. The switching circuit may be a circuit including a switch. For example, the switch in the switching circuit is in an off state in the first frequency band and in an on state in the second frequency band.

[0180] It should be understood that the first grounding control circuit 231 (or the second grounding control circuit 232) can be in an off state in the first frequency band and in an on state in the second frequency band, which can be two relative states. Among them, the first grounding control circuit 231 is in an off state in the first frequency band relative to its state in the second frequency band, which can be understood as the current on the first radiator 210 can flow less into the floor through the first grounding control circuit 231; the first grounding control circuit 231 is in an on state in the second frequency band relative to its state in the first frequency band, which can be understood as the current on the first radiator 210 can flow more into the floor through the first grounding control circuit 231.

[0181] In one embodiment, the first grounding control circuit 231 (or the second grounding control circuit 232) is in an off state in the first frequency band and in an on state in the second frequency band, which can be two relatively independent states. Among them, the first grounding control circuit 231 is in an off state in the first frequency band, which can be understood as that basically all the current on the first radiator 210 cannot flow into the floor through the first grounding control circuit 231; the first grounding control circuit 231 is in an on state in the second frequency band, which can be understood as that basically all the current on the first radiator 210 can flow into the floor through the first grounding control circuit 231.

[0182] In one embodiment, the first radiator 210 may further include a physical or device grounding point (not shown) between the first position 201 and the second position 202, through which the first radiator 210 may be coupled to the floor 300. The location of the physical or device grounding point may be, for example, as shown in FIG30 .

[0183] In one embodiment, the physical or device grounding point of the first radiator 210 can be located in the center of the first radiator 210. In one embodiment, the physical grounding point can be electrically connected to the floor 300 via a grounding member (e.g., a metal spring, a metal rib, etc.). In one embodiment, the device grounding point can be electrically connected to the floor 300 via a device such as a capacitor or inductor.

[0184] In one embodiment, an electronic device includes a middle frame, the middle frame including a frame 11 and a middle plate, wherein the middle plate is electrically connected to a base plate 300. In one embodiment, the frame 11 and the middle plate are connected via a first connecting rib structure (not shown). The connection between the first connecting rib structure and the frame 11 is located between a first position 201 and a second position 202 of the frame; and the connection between the first connecting rib structure and the frame 11 is located between a first connection point 241 and a second connection point 242 of a first radiator 210.

[0185] It should be understood that when the first radiator 210 generates the first resonance, the central area includes a large current point. Setting a physical or device grounding point in this area does not affect the current distribution on the first radiator 210, and therefore basically does not affect the first resonance.

[0186] It should be understood that when the first radiator 210 between the first position and the first connection point 241 and the second position and the second connection point 242 generates a second resonance, setting a physical or device grounding point between the first connection point 241 and the second connection point 242 can further concentrate the current on the first radiator 210 between the first position and the first connection point 241 and between the second position and the second connection point 242, thereby cooperating with the first grounding control circuit 231 and / or the second grounding control circuit 232 to enhance its effect of being in a disconnected state in the first frequency band and in a conductive state in the second frequency band.

[0187] Similarly, in the embodiments shown in FIG. 17 , FIG. 23 , and FIG. 24 of the present application, the first radiator 210 may also include a physical or device grounding point between the first position 201 and the second position 202 , which will not be described in detail below.

[0188] It should be understood that the first circuit state and the second circuit state described above can be implemented in a variety of different ways. For the sake of simplicity, only the above two circuits are used as examples for description. The first ground control circuit 231 and the second ground control circuit 232 can use the same structure (for example, both using electronic components, filter circuits, switches, etc.), or the first ground control circuit 231 and the second ground control circuit 232 can use different structures for implementation. The present embodiment does not limit this. In the subsequent embodiments, only the first ground control circuit 231 and the second ground control circuit 232 using the same structure are used as an example for description.

[0189] In one embodiment, at the resonance point of the first resonance, the current on the first radiator 210 is in the same direction. At the resonance point of the second resonance, the current on the first radiator 210 between the first end (the end at the first position 201) and the first connection point 241 is in the same direction as the current on the first radiator 210 between the second end (the end at the second position 202) and the second connection point 242.

[0190] It should be understood that both the first resonance and the second resonance are generated by the linear DM mode described in the above embodiment. Since the current generated by the linear DM mode is primarily generated by the first radiator 210, multiple current modes are not generated on the floor 300, making it easy to determine the maximum radiation direction of the directional pattern generated by the antenna 200.

[0191] In one embodiment, at the resonance point of the first resonance, the central area of ​​the first radiator 210 may include an electric field zero point (a point with large current).

[0192] It should be understood that the central region of the first radiator 210 can be understood as an area within a certain range (e.g., 5 mm) from the center of the first radiator 210, and the lengths of the first radiators 210 on both sides of the center are the same. The first resonance is generated by the line DM mode described in the above embodiment, and an electric field zero point can be generated in the central region of the first radiator 210.

[0193] In one embodiment, at the resonance point of the second resonance, the first current region and the second current region include an electric field zero point (a point of high current). The first current region and the second current region may be areas near the first connection point 241 and the second connection point 242 (e.g., areas within a first threshold range, e.g., 5 mm, from the first connection point 241 and the second connection point 242).

[0194] It should be understood that the second resonance is generated by the line DM mode described in the above embodiment, and an electric field zero point (a point with large current) may be generated in the vicinity of the first connection point 241 and the second connection point 242 .

[0195] In one embodiment, the frame 11 may include a first side 131 and a second side 132 intersecting at an angle, wherein the length of the first side 131 is greater than the length of the second side 132. The first position 201 and the second position 202 are located at the second side 132.

[0196] It should be understood that since the current in the line DM mode is mainly concentrated on the first radiator 210, it is easy to determine that the maximum radiation direction of the directional pattern generated by the antenna 200 is the top direction of the electronic device 10 (for example, the z direction). When aligning the satellite, the user does not need to change the posture of holding the electronic device 10.

[0197] Furthermore, when the first radiator 210 is disposed on the second side 132 , the radiation efficiency and system efficiency of the antenna 200 generated by the resonance of the linear DM mode are higher.

[0198] In one embodiment, the first position 201 and the second position 202 may be symmetrical along a virtual axis of the second side 132, with the lengths of the second side 132 on both sides of the virtual axis being the same. It should be understood that as the symmetry between the first position 201 and the second position 202 increases, the radiation characteristics of the antenna 200 are also improved accordingly.

[0199] In one embodiment, the length of the first radiator 210 is half of the first wavelength, where the first wavelength is the wavelength corresponding to the first resonance.

[0200] In one embodiment, the distance between the first position 201 and the first connection point 241 is one quarter of the second wavelength, and the distance between the second position 202 and the second connection point 242 is one quarter of the second wavelength, which is the wavelength corresponding to the second resonance.

[0201] It should be understood that the first resonance can be generated by the line DM mode in the above embodiment. The second resonance can be generated by the line DM mode in the above embodiment.

[0202] In one embodiment, a ratio of the resonance point frequency of the second resonance to the resonance point frequency of the first resonance is greater than 1 and less than or equal to 3.

[0203] In one embodiment, a ratio between the resonance point frequency of the second resonance and the resonance point frequency of the first resonance is greater than or equal to 1.5 and less than or equal to 2.5.

[0204] In one embodiment, a ratio of the distance between the first connection point 241 and the second connection point 242 to the length of the first radiator is greater than zero and less than or equal to two-thirds.

[0205] In one embodiment, a ratio of the distance between the first connection point 241 and the second connection point 242 to the length of the first radiator is greater than or equal to one third and less than or equal to three fifths.

[0206] It should be understood that the positions of the first connection point 241 and the second connection point 242 on the first radiator 210 are related to the resonant point of the second resonance and the resonant point of the first resonance. When the ratio between the resonant point frequency of the second resonance and the resonant point frequency of the first resonance increases, the distance between the first connection point 241 and the second connection point 242 increases. In one embodiment, the distance between the first connection point 241 and the second connection point 242 can be adjusted by the first ground control circuit 231 and the second ground control circuit 232.

[0207] In one embodiment, when the ratio between the resonant point frequency of the second resonance and the resonant point frequency of the first resonance remains unchanged, the first grounding control circuit 231 and the second grounding control circuit 232 can be equivalent to capacitors. The larger the equivalent capacitance value, the smaller the distance between the first connection point 241 and the second connection point 242 adjusted by the first grounding control circuit 231 and the second grounding control circuit 232.

[0208] In one embodiment, when the ratio between the resonant point frequency of the second resonance and the resonant point frequency of the first resonance remains unchanged, the first grounding control circuit 231 and the second grounding control circuit 232 can be equivalent to inductors. The greater the equivalent inductance value, the greater the distance between the first connection point 241 and the second connection point 242 adjusted by the first grounding control circuit 231 and the second grounding control circuit 232.

[0209] In one embodiment, the first ground control circuit 231 and the second ground control circuit 232 include only one electronic component. In one embodiment, the electronic component is a capacitor or an inductor. In one embodiment, when the first ground control circuit 231 and the second ground control circuit 232 include only one electronic component, the equivalent capacitance value of the electronic component in the first ground control circuit 231 and the equivalent capacitance value of the electronic component in the second ground control circuit 232 are substantially the same (for example, the equivalent capacitance value of the electronic component in the second ground control circuit 232 is within a range of ±25% of the equivalent capacitance value of the electronic component in the first ground control circuit 231).

[0210] In one embodiment, the distance between the first connection point 241 and the center of the first radiator 210 is substantially the same as the distance between the second connection point 242 and the center of the first radiator 210 .

[0211] It should be understood that “substantially the same” may be understood as a ratio of the distance between the first connection point 241 and the center of the first radiator 210 to the distance between the second connection point 242 and the center of the first radiator 210 being greater than or equal to 0.9 and less than or equal to 1.1.

[0212] In one embodiment, the distance between the first feeding point 211 and the first position 202 is less than or equal to 5 mm. In one embodiment, the distance between the first feeding point 211 and the first position 202 is less than or equal to 3 mm.

[0213] It should be understood that as the distance between the first feeding point 211 and the first position 202 decreases, it is more conducive to miniaturization of the antenna 200. When the first feeding circuit 221 is electrically connected to the first radiator 210 via a metal spring, the above distance can be understood as the length of the conductor portion of the frame between the midpoint of the metal spring and the first position 202, and can be understood accordingly in the embodiments of the present application.

[0214] In one embodiment, antenna 200 may further include an electronic component 230. First radiator 210 includes a third connection point 243, which is located between second connection point 242 and second location 202. A first end of electronic component 230 is coupled to third connection point 243, and a second end of electronic component 230 is coupled to ground 300 for grounding.

[0215] It should be understood that the electronic component 230 can be used to increase the symmetry of the antenna 200 to improve the radiation characteristics of the antenna 200. In one embodiment, the third connection point 243 and the first feed point 211 are symmetrical along the virtual axis of the first radiator 210, and the length of the first radiator 210 on both sides of the virtual axis is the same. In one embodiment, the electronic component 230 can be a capacitor.

[0216] In one embodiment, the first feeding circuit 221 includes a first RF channel 2211 and a second RF channel 2212. The first RF channel 2211 (for feeding an electrical signal in a first frequency band) is used to generate a first resonance, and the second RF channel 2212 (for feeding an electrical signal in a second frequency band) is used to generate a second resonance, as shown in FIG10 . The first RF channel 2211 can be used to feed a first electrical signal to cause the antenna 200 to generate a first resonance, which can correspond to a transmitting frequency band in satellite communications. The second RF channel 2212 can be used to feed a second electrical signal to cause the antenna 200 to generate a second resonance, which can correspond to a receiving frequency band in satellite communications. The first RF channel 2211 and the second RF channel 2212 can be understood as two different circuits for transmitting electrical signals, for example, they can be understood as two different RF channels in a radio frequency chip (RFIC).

[0217] It should be understood that the embodiment of the present application feeds electrical signals into the antenna 200 by means of combined feeding, which can reduce the feeding points on the radiator and reduce the complexity of the system design.

[0218] In one embodiment, when the transmit frequency band and the receive frequency band in satellite communications operate in time division duplexing (TDD), the first feeding circuit 221 may further include a switch 2213, as shown in FIG10(a). A first end of the switch 2213 is coupled to the first feeding point 211, a second end is coupled to the first RF channel 2211, and a third end is coupled to the second RF channel 2212.

[0219] It should be understood that when the transmit frequency band and the receive frequency band operate in TDD, the antenna 200 can generate the first resonance and the second resonance in different time slots through the coupling connection state between the first end, the second end and the third end of the switch 2213.

[0220] At the same time, in the embodiment of the present application, the switch 2213 is connected in series between the first RF channel 2211 and the second RF channel 2212 and the first feeding point 211. The switch 2213 can be located at any position of the first feeding circuit 221, for example, close to the first feeding point 211 or away from the first feeding point 211. The embodiment of the present application is only used as an illustrative example and does not limit the specific position of the switch 2213.

[0221] In one embodiment, when the transmit and receive frequency bands in satellite communications operate in frequency division duplexing (FDD), the first feed circuit 221 may further include a combiner 2214, as shown in FIG10(b). The combiner 2214 has a first end coupled to the first feed point 211, a second end coupled to the first RF channel 2211, and a third end coupled to the second RF channel 2212.

[0222] It should be understood that when the transmit frequency band and the receive frequency band operate in FDD, the first RF channel 2211 and the second RF channel 2212 can be simultaneously fed into the electrical signal antenna 200 through the combiner 2214 to simultaneously generate the first resonance and the second resonance.

[0223] In one embodiment, the width of the first gap or the second gap may be 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 gap may be understood as the minimum distance between conductors on both sides of the gap.

[0224] Figures 11 to 16 are simulation results of the second resonant point of the antenna 200 shown in Figure 9. Figure 11 is a schematic diagram of the current distribution of the antenna 200 shown in Figure 9 when the first and second connection points are coupled to the floor. Figure 12 is a directional diagram of the antenna 200 shown in Figure 9 when the first and second connection points are directly coupled to the floor. Figure 13 is a schematic diagram of the current distribution of the antenna 200 shown in Figure 9 when the first and second connection points are coupled to the floor via inductance. Figure 14 is a directional diagram of the antenna 200 shown in Figure 9 when the first and second connection points are coupled to the floor via inductance. Figure 15 is a schematic diagram of the current distribution of the antenna 200 shown in Figure 9 when the first and second connection points are coupled to the floor via capacitance. Figure 16 is a directional diagram of the antenna 200 shown in Figure 9 when the first and second connection points are coupled to the floor via capacitance.

[0225] It should be understood that in the simulation results of FIG. 11 to FIG. 16 , the lengths of the first radiators are all the same. For the sake of simplicity, only the resonance point of the first resonance is 2 GHz and the resonance point of the second resonance is 3.6 GHz as an example for explanation.

[0226] As shown in FIG11 , when first connection point 241 and second connection point 242 are directly coupled to the floor (no electronic components are electrically connected between the connection points and the floor), at the second resonance point, the current is primarily concentrated on the first radiator between first position 201 and first connection point 241, and between second position 202 and second connection point 242. Less current flows through the first radiator between first connection point 241 and second connection point 242. Therefore, the second resonance of the antenna is primarily generated by the first radiator between first position 201 and first connection point 241, and between second position 202 and second connection point 242.

[0227] Furthermore, the current on the first radiator 210 between the first position 201 and the first connection point 241 and the current on the first radiator 210 between the second position 202 and the second connection point 242 have the same direction.

[0228] As shown in Figure 12, at the resonance point of the second resonance, the maximum radiation direction of the directional pattern generated by the antenna is the top direction of the electronic device (for example, the z direction). When the user uses the electronic device for satellite communication in the first frequency band, there is no need to change the posture of holding the electronic device to obtain a good user experience.

[0229] As shown in FIG13 , when first connection point 241 and second connection point 242 are coupled to the ground via an inductor (the first ground control circuit and the second ground control circuit include only an inductor) (e.g., an inductor value of 1.5 nH), at the second resonance point, current is primarily concentrated on the first radiator between first position 201 and first connection point 241, and between second position 202 and second connection point 242. Less current flows through the first radiator between first connection point 241 and second connection point 242. Therefore, the second resonance of the antenna is primarily generated by the first radiator between first position 201 and first connection point 241, and between second position 202 and second connection point 242.

[0230] Furthermore, the current on the first radiator 210 between the first position 201 and the first connection point 241 and the current on the first radiator 210 between the second position 202 and the second connection point 242 have the same direction.

[0231] The current distribution shown in FIG13 is similar to the current distribution shown in FIG11 . At the second resonance point, the inductor coupled to the first connection point 241 and the second connection point 242 is in the second circuit state, which is equivalent to being turned on.

[0232] As shown in Figure 14, at the resonance point of the second resonance, the maximum radiation direction of the directional pattern generated by the antenna is the top direction of the electronic device (for example, the z direction). When the user uses the electronic device for satellite navigation or communication in the first frequency band, there is no need to change the posture of holding the electronic device 10 to obtain a good user experience.

[0233] As shown in FIG15 , when first connection point 241 and second connection point 242 are coupled to the ground plane via inductance (the first ground control circuit and the second ground control circuit include only capacitance) (e.g., a capacitance value of 2.2 pF), at the second resonance point, current is primarily concentrated on the first radiator between first position 201 and first connection point 241, and between second position 202 and second connection point 242. Less current flows through the first radiator between first connection point 241 and second connection point 242. Therefore, the second resonance of the antenna is primarily generated by the first radiator between first position 201 and first connection point 241, and between second position 202 and second connection point 242.

[0234] Furthermore, the current on the first radiator 210 between the first position 201 and the first connection point 241 and the current on the first radiator 210 between the second position 202 and the second connection point 242 have the same direction.

[0235] It should be understood that for the sake of simplicity, in the above embodiment, only the inductance value of the inductor is 1.5nH and the capacitance value of the capacitor is 2.2pF. In actual applications, they can be adjusted according to actual production or design. For example, in the range of 1.6GHz-4GHz, the inductance value of the above inductor can be less than 5nH, and the capacitance value of the above capacitor can be greater than 1pF.

[0236] The current distribution shown in FIG15 is similar to the current distribution shown in FIG11 . At the second resonance point, the capacitor coupled to the first connection point 241 and the second connection point 242 is in the second circuit state, which is equivalent to being turned on.

[0237] As shown in Figure 16, at the resonance point of the second resonance, the maximum radiation direction of the directional pattern generated by the antenna is the top direction of the electronic device (for example, the z direction). When the user uses the electronic device for satellite navigation or communication in the first frequency band, there is no need to change the posture of holding the electronic device 10 to obtain a good user experience.

[0238] FIG17 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0239] As shown in FIG. 17 , the first grounding control circuit 231 and the second grounding control circuit 232 in the above embodiment may be filtering circuits.

[0240] It should be understood that when the first ground control circuit 231 and the second ground control circuit 232 are filter circuits, the first circuit state and the second circuit state are the high-impedance state and the low-impedance state of the filter circuit. When the antenna generates a first resonance, the first ground control circuit 231 and the second ground control circuit 232 are in a high-impedance state, and the first radiator 210 is effectively disconnected from the floor 300 at the first connection point 241 and the second connection point 242 (the first connection point 241 and the second connection point 242 are not coupled to the floor 300). When the antenna generates a second resonance, the first ground control circuit 231 and the second ground control circuit 232 are in a low-impedance state, and the first radiator 210 is effectively disconnected from the floor 300 at the first connection point 241 and the second connection point 242 (the first connection point 241 and the second connection point 242 are coupled to the floor 300).

[0241] In one embodiment, the first ground control circuit 231 may include a first electronic component 251, a second electronic component 252, and a third electronic component 253. A first end of the first electronic component 251 and a first end of the second electronic component 252 are coupled to the first connection point 241, a second end of the first electronic component 251 and a second end of the second electronic component 252 are coupled to a first end of the third electronic component 253, and a second end of the third electronic component 253 is coupled to the ground 300.

[0242] In one embodiment, the second ground control circuit 232 has the same structure as the first ground control circuit 231 to improve the symmetry of the antenna. The same can be understood as including the same number of electronic components and the same connection method between the electronic components.

[0243] In one embodiment, the second grounding control circuit 232 may include a fourth electronic component 254, a fifth electronic component 255, and a sixth electronic component 256. A first end of the fourth electronic component 254 and a first end of the fifth electronic component 255 are coupled to the first connection point 241, a second end of the fourth electronic component 254 and a second end of the fifth electronic component 255 are coupled to the first end of the sixth electronic component 256, and a second end of the sixth electronic component 256 is coupled to the ground 300.

[0244] It should be understood that for the sake of simplicity of discussion, in the embodiment of the present application, only the first grounding control circuit 231 and the second grounding control circuit 232 are distanced with the above-mentioned structure. In actual production or design, the first grounding control circuit 231 and the second grounding control circuit 232 can also be filtering circuits of other structures, and the embodiment of the present application does not limit this.

[0245] In one embodiment, the second grounding control circuit 232 has the same structure as the first grounding control circuit 231, and the electronic components in the first grounding control circuit 231 are substantially the same as the corresponding electronic components in the second grounding control circuit 232 (for example, the first electronic component 251 and the fourth electronic component 254 are both capacitors, and the equivalent capacitance value of the first electronic component 251 is within the range of ±25% of the equivalent capacitance value of the fourth electronic component 254).

[0246] In one embodiment, antenna 200 may further include a tuning circuit 233. First radiator 210 includes a third connection point 243, which is located between second connection point 242 and second location 202. A first end of tuning circuit 233 is coupled to third connection point 243, and a second end of tuning circuit 233 is coupled to ground 300 for grounding.

[0247] It should be understood that the tuning circuit 233 can be used to determine the resonant point frequency of the first resonance and the resonant point frequency of the second resonance. In one embodiment, when the tuning circuit 233 is equivalent to a capacitor, the electrical length of the radiator can be increased while the physical length of the radiator remains unchanged, causing the resonant point frequency of the resonance to shift toward a higher frequency. In one embodiment, when the tuning circuit 233 is equivalent to an inductor, the electrical length of the radiator can be reduced while the physical length of the radiator remains unchanged, causing the resonant point frequency of the resonance to shift toward a lower frequency. Therefore, when the antenna generates the first resonance and the second resonance, the tuning circuit 233 can be equivalent to different capacitors or inductors to adjust the resonant point frequency of the first resonance and the resonant point frequency of the second resonance.

[0248] In one embodiment, the length D1 of the frame between the third connection point 243 and the second position 202 and the length L1 of the frame between the first position 201 and the second position 202 satisfy the following: D1 ≤ L1 × 30%. In one embodiment, D1 ≤ L1 × 10%, as shown in FIG8 . In one embodiment, D1 is less than or equal to 8 mm.

[0249] It should be understood that the third connection point 243 can be set in an area close to the second position 202. The first end and the second end of the first radiator 210 are open ends. The area near the open end generally has a strong electric field. The area with a strong electric field has better tuning performance.

[0250] In one embodiment, when the third connection point 243 and the second connection point 242 are the same, at the resonance point of the first resonance, the current on the first radiator 210 is in the same direction, and at the resonance point of the second resonance, the current on the first radiator between the first end of the first radiator 210 and the first connection point 241 is in opposite directions to the current on the first radiator 210 between the second end of the first radiator 210 and the second connection point 242 (or the third connection point 243).

[0251] It should be understood that when the third connection point 243 and the second connection point 242 are the same, the first resonance is generated by the line DM mode described in the above embodiment, and the second resonance is generated by the line CM mode described in the above embodiment.

[0252] In one embodiment, the tuning circuit 233 may include a seventh electronic component 257 and an eighth electronic component 258. A first end of the seventh electronic component 257 is coupled to the third connection point, a second end of the seventh electronic component 257 is coupled to a first end of the eighth electronic component 258, and a second end of the eighth electronic component 258 is coupled to the ground 300 for grounding.

[0253] It should be understood that for the sake of simplicity in the discussion, in the embodiments of the present application, only the tuning circuit 233 is used as the above-mentioned structure for illustration. In actual production or application, different structures can be selected, and the embodiments of the present application do not limit this.

[0254] Figures 18 to 22 are simulation results of the antenna shown in Figure 17. Figure 18 is an S-parameter simulation result of the antenna shown in Figure 17. Figure 19 is a schematic diagram of the current distribution of the antenna shown in Figure 17 at the first resonance point (2 GHz). Figure 20 is a schematic diagram of the current distribution of the antenna shown in Figure 17 at the second resonance point (3.6 GHz). Figure 21 is a directional pattern of the antenna shown in Figure 17 at the first resonance point (2 GHz). Figure 22 is a directional pattern of the antenna shown in Figure 17 at the second resonance point (3.6 GHz).

[0255] It should be understood that for the sake of simplicity of discussion, only the simulation results are shown when the first electronic component and the fourth electronic component are capacitors (capacitance value is 2.1pF), the second electronic component and the fifth electronic component are inductors (inductance value is 3nH), the third electronic component and the sixth electronic component are inductors (inductance value is 1.35nH), the seventh electronic component is a capacitor (capacitance value is 0.25pF), and the eighth electronic component is an inductor (inductance value is 17nH).

[0256] As shown in Figure 18, the antenna can resonate near 2 GHz (first resonance) and near 3.6 GHz (second resonance). The resonant frequency band of the first resonance (e.g., S11 <-4 dB) can include the transmit frequency band of satellite communications, and the resonant frequency band of the second resonance (e.g., S11 <-4 dB) can include the receive frequency band of satellite communications.

[0257] As shown in Figure 19, at the first resonance point, a strong current flows through the entire branch of the first radiator. Therefore, the first resonance of the antenna is generated by the entire first radiator. Furthermore, the currents on the first radiator are in the same direction.

[0258] As shown in Figure 20, at the second resonance point, the current is primarily concentrated in the first radiator between the first position and the first connection point, and between the second position and the second connection point. The current flowing in the first radiator between the first connection point and the second connection point is relatively small. Therefore, the second resonance of the antenna is primarily generated by the first radiator between the first position and the first connection point, and between the second position and the second connection point. Furthermore, the current flowing in the first radiator between the first position and the first connection point is in the same direction as the current flowing in the first radiator between the second position and the second connection point.

[0259] Figure 21(a) shows the three-dimensional radiation pattern of the antenna at the first resonance point (2 GHz). Figure 21(b) shows the planar radiation pattern of the antenna at the first resonance point (2 GHz) in a plane (e.g., the xoz plane). At the first resonance point, the antenna's maximum radiation direction is toward the top of the electronic device (e.g., the z direction).

[0260] Figure 22(a) shows the three-dimensional radiation pattern of the antenna at the second resonance point (3.6 GHz). Figure 22(b) shows the planar radiation pattern of the antenna at the second resonance point (3.6 GHz) in a plane (e.g., the xoz plane). At the first resonance point, the antenna's maximum radiation pattern is toward the top of the electronic device (e.g., the z direction).

[0261] It should be understood that the maximum radiation direction of the directional pattern generated by the antenna in the first resonance and the second resonance is the top direction of the electronic device (for example, the z direction), which meets the requirement of angular alignment of the transmitting frequency band and the receiving frequency band in satellite communication (for example, the angle difference between the maximum radiation directions of the directional pattern generated by the first resonance and the second resonance is less than 30°), which can improve the accuracy of the antenna in transmitting electrical signals.

[0262] Moreover, since the maximum radiation direction of the directional pattern generated by the antenna in the first resonance and the second resonance is the top direction of the electronic device (for example, the z direction), the user does not need to change the posture of holding the electronic device 10 when using the electronic device for satellite navigation or communication in the first frequency band, and can obtain a good user experience.

[0263] FIG23 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0264] As shown in FIG23 , the first ground control circuit 231 may include a first switch 261, which is configured to switch the coupling state between the first feed circuit 231 and the first connection point 241. In one embodiment, a first end of the first switch 261 is coupled to the first connection point 241, and a second end of the first switch 261 is coupled to other electronic components in the first feed circuit 231.

[0265] It should be understood that, for the sake of simplicity, in the embodiments of the present application, only the example of no other electronic components being set between the first switch 241 and the first connection point 241 is used for illustration. In actual production or design, the first switch 241 can also be set at any position in the first grounding control circuit 231. The embodiments of the present application do not limit this. The switches set in other grounding control circuits in the embodiments of the present application can also be understood accordingly.

[0266] The second ground control circuit 232 may include a second switch 262, which is configured to switch the coupling state between the second feeding circuit 232 and the second connection point 242. A first end of the second switch 262 is coupled to the second connection point 242, and a second end of the second switch 262 is coupled to other electronic components in the second feeding circuit 232.

[0267] It should be understood that in the electronic device 10 shown in FIG17 , the first ground control circuit 231 and the second ground control circuit 232 are filter circuits, and the first circuit state and the second circuit state are switched by the high-impedance state and the low-impedance state of the filter circuit. In the electronic device 10 shown in FIG23 , the switching between the first circuit state and the second circuit state can be achieved by turning the first switch 261 and the second switch 262 on or off.

[0268] In one embodiment, the first grounding control circuit 231 may also be a first electronic component 251 . The first electronic component 251 is coupled to the floor 300 and the first connection point 241 . The first switch 261 is used to switch the coupling state between the first electronic component 251 and the first connection point 241 .

[0269] The second grounding control circuit 232 may also include a second electronic component 252 . The second electronic component 252 is coupled to the floor 300 and the second connection point 242 . The second switch 262 is used to switch the coupling state between the second electronic component 252 and the second connection point 242 .

[0270] It should be understood that the first electronic component 251 and the second electronic component 252 can be used to change the radiation characteristics of the antenna at the second resonance (eg, the resonance point frequency).

[0271] FIG24 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0272] As shown in FIG. 24 , the antenna 200 further includes a second feeding circuit 222 .

[0273] The first radiator 210 includes a second feeding point 212 . The second feeding point 212 is located between the second position 202 and the second connection point 242 , and the second feeding circuit 222 is coupled to the second feeding point 212 .

[0274] In one embodiment, the second feeding circuit 222 can be used to feed signals in the first frequency band and the second frequency band. In one embodiment, the antenna 200 can be used as a satellite antenna, the first frequency band can correspond to the transmitting frequency band of the satellite antenna, and the second frequency band can correspond to the receiving frequency band of the satellite antenna.

[0275] It should be understood that since the first feeding point 211 and the second feeding point 212 are respectively located on either side of the first radiator 210, the first feeding point 211 and the second feeding point 212 are respectively fed with electrical signals, and the antenna 200 can generate a first directional pattern and a second directional pattern, and the first directional pattern and the second directional pattern are different. The different directional patterns can be understood as having different maximum radiation directions.

[0276] In one embodiment, when the directional patterns are different, the electronic device 10 can determine whether the antenna 200 is fed with an electrical signal by the first feeding point 211 or the second feeding point 212 based on the strength of the signal received by the antenna 200. For example, in the second resonance corresponding receiving frequency band, in this operating frequency band, when the first feeding point 211 is used as the feeding point, the strength of the received electrical signal is -70dB, and when the second feeding point 212 is used as the feeding point, the strength of the received electrical signal is -80dB. Since the strength of the electrical signal received by the antenna 200 is greater when the first feeding point 211 is used as the feeding point, the first feeding point 211 is used as the feeding point to improve the communication performance of the electronic device 10.

[0277] In one embodiment, a ratio of a distance between the first feed point 211 and the center of the first radiator 210 to a distance between the second feed point 212 and the center of the first radiator 210 is greater than or equal to 0.9 and less than or equal to 1.1. In one embodiment, the first radiator 210 further includes a third connection point 243 and a fourth connection point 244, wherein the third connection point 243 is located between the first position and the first connection point 241, and the fourth connection point 244 is located between the second position 202 and the second connection point 242.

[0278] In one embodiment, antenna 200 further includes a third ground control circuit 233 and a fourth ground control circuit 234. A first terminal of third ground control circuit 233 is coupled to third connection point 243, and a second terminal of third ground control circuit 233 is coupled to ground 300. A first terminal of fourth ground control circuit 234 is coupled to fourth connection point 244, and a second terminal of fourth ground control circuit 234 is coupled to ground 300.

[0279] The third ground control circuit 233 includes a first switch 261, which is used to switch the coupling connection between the third ground control circuit 233 and the third connection point 243. The fourth ground control circuit 234 includes a second switch 262, which is used to switch the coupling connection between the fourth ground control circuit 234 and the fourth connection point 244.

[0280] It should be understood that the third ground control circuit 233 and the fourth ground control circuit 234 can be used to adjust the maximum radiation direction of the directional pattern generated by the antenna 200, so that the first directional pattern generated by the electrical signal fed into the antenna 200 by the first feeding point 211 and the second directional pattern generated by the electrical signal fed into the antenna 200 by the second feeding point 212 cover a larger area, and the antenna 200 has good radiation performance within a large range deviating from the top direction of the electronic device (for example, the z direction).

[0281] When an electrical signal is fed into antenna 200 via first feeding point 211, first switch 261 is in an off state, second switch 262 is in an on state, third ground control circuit 233 is not electrically connected to third connection point 243, and fourth ground control circuit 234 is electrically connected to fourth connection point 244. When an electrical signal is fed into first feeding point 211, third ground control circuit 233 adjusts the maximum radiation direction of the first pattern.

[0282] When an electrical signal is fed into antenna 200 via second feeding point 212, first switch 261 is in an off state, second switch 262 is in an on state, third ground control circuit 233 is not electrically connected to third connection point 243, and fourth ground control circuit 234 is electrically connected to fourth connection point 244. When an electrical signal is fed into second feeding point 212, third ground control circuit 233 adjusts the maximum radiation direction of the second pattern.

[0283] In one embodiment, the first feeding circuit includes a first radio frequency channel and a second radio frequency channel, wherein the first radio frequency channel is used to generate a first resonance, and the second radio frequency channel is used to generate a second resonance.

[0284] In one embodiment, the second feeding circuit includes a third radio frequency channel and a fourth radio frequency channel, wherein the third radio frequency channel is used to feed signals in the first frequency band, and the fourth radio frequency channel is used to feed signals in the second frequency band.

[0285] Figures 25 to 28 are simulation result diagrams of the antenna shown in Figure 24. Figure 25 is a directional diagram of the antenna shown in Figure 24 at the resonance point of the first resonance (2 GHz) when the electrical signal is fed from the first feeding point. Figure 26 is a directional diagram of the antenna shown in Figure 24 at the resonance point of the second resonance (3.6 GHz) when the electrical signal is fed from the first feeding point. Figure 27 is a directional diagram of the antenna shown in Figure 24 at the resonance point of the first resonance (2 GHz) when the electrical signal is fed from the second feeding point. Figure 28 is a directional diagram of the antenna shown in Figure 24 at the resonance point of the second resonance (3.6 GHz) when the electrical signal is fed from the second feeding point.

[0286] It should be understood that for the sake of simplicity, in the present embodiment, the top direction of the electronic device is taken as the z direction. In the directional diagrams shown in Figures 25 to 28, only the directional diagrams in the xoz plane are shown, where the horizontal axis is the angle with the x-axis. The vertical axis is the angle θ (°) with the z-axis.

[0287] As shown in Figures 25 and 26, when the antenna is fed with an electrical signal from the first feeding point, the maximum radiation direction of the directional patterns generated by the antenna at the first resonance and the second resonance is roughly the same, which meets the requirement of angular alignment between the transmitting frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna in transmitting electrical signals.

[0288] As shown in Figures 27 and 28, when the antenna is fed with an electrical signal from the second feeding point, the maximum radiation direction of the directional pattern generated by the antenna at the first resonance and the second resonance is roughly the same, which meets the requirement of angular alignment between the transmitting frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna in transmitting electrical signals.

[0289] When the antenna is fed with an electrical signal from the first feeding point, the maximum radiation direction of the generated pattern is approximately located at When the antenna is fed with an electrical signal from the second feeding point, the maximum radiation direction of the generated pattern is approximately located at Since the maximum radiation direction of the directional pattern generated by the electrical signal fed into the first feeding point 211 is different from the maximum radiation direction of the directional pattern generated by the electrical signal fed into the second feeding point 212, the two directional patterns can enable the antenna to have good radiation characteristics within the range of θ less than 60°.

[0290] FIG29 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0291] As shown in FIG29 , the frame 11 may include a third position 203, a first position 201, a second position 202, and a fourth position 204, which are sequentially arranged. The frame 11 defines a first gap and a second gap, respectively, at the first position 201 and the second position 202. The frame 11 is coupled to the floor 300 at the third position 203 and the fourth position 204.

[0292] Antenna 200 includes a first radiator 210, a second radiator 218, and a third radiator 219. First radiator 210 is the conductive portion of frame 11 between first position 201 and second position 202. Second radiator 218 is the conductive portion of frame 11 between first position 201 and third position 203. Third radiator 219 is the conductive portion of frame 11 between fourth position 204 and second position 202.

[0293] Antenna 200 also includes a first feed circuit 221, a second feed circuit 222, a third feed circuit 223, and a fourth feed circuit 224. The third feed circuit 223 and the fourth feed circuit 224 are used to feed electrical signals in the first frequency band, while the first feed circuit 221 and the second feed circuit 222 are used to feed electrical signals in the second frequency band. The first radiator 210 includes a first feed point 211 and a second feed point 212. The second radiator 218 includes a third feed point 213. The third radiator 219 includes a fourth feed point 214. The first feed circuit 221 is coupled to the first feed point 211. The second feed circuit 222 is coupled to the second feed point 212. The third feed circuit 223 is coupled to the third feed point 213. The fourth feed circuit 224 is coupled to the fourth feed point 214.

[0294] In one embodiment, the third feeding circuit 223 and the fourth feeding circuit 224 may be used to generate a first resonance (which may correspond to a first frequency band), and the first feeding circuit 221 and the second feeding circuit 222 may be used to generate a second resonance (which may correspond to a second frequency band).

[0295] It should be understood that in the electronic device 10 shown in FIG23 , the first feeding circuit 221 includes the first and second RF channels, the second feeding circuit 222 includes the third and fourth RF channels, and the first radiator 210 simultaneously generates the first and second resonances. In the electronic device 10 shown in FIG29 , the first radiator 210 generates the second resonance, and the second radiator 218 and the third radiator 219 generate the first resonance.

[0296] Similarly, the electronic device 10 can determine the feeding point of the antenna 200 based on the strength of the signal received by the antenna 200. For example, in the second resonance corresponding receiving frequency band, in this operating frequency band, when the first feeding point 211 is used as the feeding point, the strength of the received electrical signal is -70dB, and when the second feeding point 212 is used as the feeding point, the strength of the received electrical signal is -80dB. Since the strength of the electrical signal received by the antenna 200 is greater when the first feeding point 211 and the third feeding point 213 are used as the feeding points, the first feeding point 211 and the third feeding point 213 are used as the feeding points to improve the communication performance of the electronic device 10.

[0297] When the antenna 200 is fed with electrical signals by the first feeding point 211 and the third feeding point 213, the first switch is in the off state, the second switch is in the on state, the third ground control circuit 233 is not electrically connected to the third connection point 243, and the fourth ground control circuit 234 is electrically connected to the fourth connection point 244.

[0298] When the antenna 200 is fed with electrical signals by the second feeding point 212 and the fourth feeding point 214, the first switch is in the off state, the second switch is in the on state, the third ground control circuit 233 is not electrically connected to the third connection point 243, and the fourth ground control circuit 234 is electrically connected to the fourth connection point 244.

[0299] In one embodiment, a grounding point 215 may be further 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 215 , as shown in FIG30 .

[0300] It should be understood that in electronic device 10, when satellite communication and cellular network are not operating simultaneously, the same radiator can be shared to generate resonance. In this case, antenna 200 shown in FIG. 29 is more suitable for the internal layout of electronic device 10. When electronic device 10 is not performing satellite communication using antenna 200, the first radiator and first feeder circuit 221 between first position 201 and ground point 215 form a first antenna, the first radiator and second feeder circuit 222 between second position 202 and ground point 215 form a second antenna, the second radiator 218 and third feeder circuit 223 form a third antenna, and the third radiator 219 and fourth feeder circuit 224 form a fourth antenna. At least some of the first, second, third, and fourth antennas can operate in a cellular network.

[0301] In one embodiment, the grounding point 215 may be located in the center of the first radiator 210. In one embodiment, the grounding point 215 may be electrically connected to the floor 300 via a grounding member (eg, a metal spring, a metal rib, etc.).

[0302] It should be understood that when the first radiator 210 generates a first resonance, the central region includes a point of high current flow. Therefore, placing a grounding point in this region does not affect the current distribution on the first radiator 210 and, therefore, does not affect the first resonance. When the first radiator 210 generates a second resonance between the first position and the first connection point 241 and the second position and the second connection point 242, placing a grounding point in this region does not affect the current distribution on the first radiator 210 and, therefore, does not affect the second resonance.

[0303] In one embodiment, the electronic device further includes a middle frame, which includes a frame 11 and a middle plate, wherein the middle plate is electrically connected to the base plate 300. In one embodiment, the frame 11 and the middle plate are connected by a first connecting rib structure, wherein the connection between the first connecting rib structure and the frame 11 is located between the first position 201 and the second position 202 of the frame; and the connection between the first connecting rib structure and the frame 11 is located between the first connection point 241 and the second connection point 242 of the first radiator 210.

[0304] Figures 31 to 36 are simulation result diagrams of the antenna shown in Figure 29. Figure 31 is a schematic diagram of the S parameters of the antenna shown in Figure 29. Figure 32 is a simulation result diagram of the system efficiency of the antenna shown in Figure 29. Figure 33 is a directional diagram of the antenna shown in Figure 29 at the resonance point of the first resonance (2GHz) when the electrical signal is fed from the third feeding point. Figure 34 is a directional diagram of the antenna shown in Figure 29 at the resonance point of the second resonance (3.6GHz) when the electrical signal is fed from the first feeding point. Figure 35 is a directional diagram of the antenna shown in Figure 29 at the resonance point of the first resonance (2GHz) when the electrical signal is fed from the fourth feeding point. Figure 36 is a directional diagram of the antenna shown in Figure 29 at the resonance point of the second resonance (3.6GHz) when the electrical signal is fed from the second feeding point.

[0305] As shown in Figure 31, when the antenna is fed with an electrical signal through the third feeding point (or fourth feeding point) (S11), resonance (first resonance) can be generated near 2 GHz. When the antenna is fed with an electrical signal through the first feeding point (or second feeding point) (S22), resonance (first resonance) can be generated near 2 GHz. The isolation (S12) between the two feeding points is greater than 10 dB.

[0306] As shown in FIG32 , the antenna has good system efficiency ( S1 ) in the first resonant frequency band and good system efficiency ( S2 ) in the second resonant frequency band.

[0307] It should be understood that for the sake of simplicity, in the present embodiment, the top direction of the electronic device is taken as the z direction. In the directional diagrams shown in Figures 33 to 36, only the directional diagrams in the xoz plane are shown, where the horizontal axis is the angle with the x-axis. The vertical axis is the angle θ (°) with the z-axis.

[0308] As shown in Figures 33 and 34, when the antenna is fed with electrical signals from the third feeding point and the first feeding point, the maximum radiation directions of the directional patterns generated by the antenna at the first resonance and the second resonance are roughly the same, which meets the requirement of angular alignment between the transmitting frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna in transmitting electrical signals.

[0309] As shown in Figures 35 and 36, when the antenna is fed with electrical signals through the fourth feeding point and the second feeding point, the maximum radiation direction of the directional patterns generated by the antenna at the first resonance and the second resonance is roughly the same, which meets the requirement of angular alignment between the transmitting frequency band and the receiving frequency band in satellite communication, and can improve the accuracy of the antenna in transmitting electrical signals.

[0310] When the antenna is fed with an electrical signal from the first feeding point, the maximum radiation direction of the generated pattern is approximately located at When the antenna is fed with an electrical signal from the second feeding point, the maximum radiation direction of the generated pattern is approximately located at In the frequency band corresponding to the second resonance, since the maximum radiation direction of the directional pattern generated by the electrical signal fed into the first feeding point is different from the maximum radiation direction of the directional pattern generated by the electrical signal fed into the second feeding point, the two directional patterns can enable the antenna to have good radiation characteristics within the range of θ less than 60°.

[0311] FIG37 is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0312] As shown in FIG37 , the frame 11 may include a fifth position 205, a third position 203, a first position 201, and a second position 202, which are arranged in sequence. The frame 11 may have a first gap, a second gap, and a third gap, respectively, at the first position 201, the second position 202, and the fifth position. The frame 11 may be coupled to the floor 300 at the third position 203. In one embodiment, the fifth position 205 may be located at the first side 131.

[0313] The frame 11 further includes a third position 203 and a second grounding point 242. The second position 202 is located between the first position 204 and the third position 203. The second grounding point 242 is located between the second position 202 and the third position 203.

[0314] Antenna 200 includes a first radiator 210 and a fourth radiator 270. The first radiator 210 is the conductive portion of the frame 11 between the first position 201 and the second position 202. The fourth radiator 270 is the conductive portion of the frame 11 between the third position 203 and the fifth position 205. The first end (the end closest to the first position 201) and the second end (the end closest to the second position 202) of the first radiator 210 are open. The first end (the end closest to the third position 203) of the fourth radiator 270 is grounded, and the second end (the end closest to the fifth position 205) is open.

[0315] The fourth radiator 270 is used to generate a first parasitic resonance, and the resonance point frequency of the first parasitic resonance is lower than the resonance point frequency of the second resonance generated by the first radiator 210 .

[0316] When the first radiator 210 generates the second resonance by the line DM mode, the fourth radiator 270 can be stimulated to generate the first parasitic resonance. In one embodiment, when the feeding point of the first radiator 210 is fed with an electrical signal, at the resonance point of the second resonance, the current on the first radiator 210 and the current on the fourth radiator 270 are in the same direction, which can extend the path of the current generated by the first radiator 210, and obtain an effect similar to a current array, thereby improving the directivity of the antenna 200. The fourth radiator 270 can improve the directivity of the antenna 200, and the energy radiated by the antenna 200 toward the top of the electronic device 10 (for example, in the z direction) is increased, so that when the user uses the electronic device 10 for satellite navigation or communication in the second frequency band, there is no need to change the posture of holding the electronic device 10, thereby obtaining a good user experience.

[0317] It should be understood that the electronic device 10 shown in FIG37 differs from the electronic device 10 shown in the above embodiment only in the provision of the fourth radiator 270. When the first radiator 210 resonates, the fourth radiator 270 can enhance the directivity of the antenna 200. For the sake of simplicity, only the fourth radiator 270 is added to the structure of the antenna 200 shown in FIG24. This technical solution can be applied to any of the above embodiments.

[0318] In one embodiment, the fourth radiator 270 may further include a fifth connection point 245 . The electronic device 10 may further include a first tuning circuit 271 . The first tuning circuit 271 is coupled to the fifth connection point 245 .

[0319] It should be understood that the first tuning circuit 271 can be used to adjust the resonant point frequency of the parasitic resonance generated by the fourth radiator 270, so that the fourth radiator 270 generates the first parasitic resonance and the second parasitic resonance. When the first radiator 210 also generates the first resonance in the linear DM mode (for example, in the antenna structure 200 shown in Figures 9, 17, 23, and 24, the first radiator 210 is used to generate the first resonance and the second resonance), the fourth radiator 270 generates the second parasitic resonance. At the resonant point of the first resonance, the current on the first radiator 210 and the current on the fourth radiator 270 are in the same direction, which can extend the path of the current generated by the first radiator 210, thereby achieving an effect similar to current arraying, and improving the directivity of the antenna 200 in the first frequency band.

[0320] Therefore, the first parasitic resonance and the second parasitic resonance generated by the fourth radiator 270 can extend the path of the current generated by the first radiator 210 in the first frequency band and the second frequency band, obtaining an effect similar to current arraying, and improving the directivity of the antenna 200.

[0321] In one embodiment, the frequency difference between the resonance point of the second resonance and the resonance point of the first parasitic resonance is greater than 0 MHz and less than or equal to 200 MHz. In one embodiment, the frequency difference between the resonance point of the first resonance and the resonance point of the second parasitic resonance is greater than 0 MHz and less than or equal to 200 MHz.

[0322] It should be understood that when the frequency difference between the resonance point of the second resonance (first resonance) and the resonance point of the first parasitic resonance (second parasitic resonance) is greater than 0 MHz and less than or equal to 200 MHz, the feeding point feeds an electrical signal, and at the resonance point of the second resonance (first resonance), the current generated on the fourth radiator 270 and the current on the first radiator 210 account for a larger proportion, which can further improve the directivity of the antenna 200.

[0323] In one embodiment, the distance between the first radiator 210 and the fourth radiator 270 may be greater than and equal to two-tenths of the first wavelength and less than or equal to one-half of the first wavelength, where the first wavelength is a vacuum wavelength corresponding to the first frequency band.

[0324] It should be understood that since the vacuum wavelength and the medium wavelength (conduction wavelength) have a certain corresponding relationship, they can be calculated based on the equivalent dielectric constant of the medium set around the radiator, which can be understood accordingly in the embodiments of the present application.

[0325] Correspondingly, the first radiator 210 can operate in a half-wavelength mode, and the distance between the first radiator 210 and the fourth radiator 270 can be greater than and equal to four-tenths of the length L1 of the conductive part of the frame between the first position 201 and the second position 202 and less than or equal to the length L1 of the conductive part of the frame between the first position 201 and the second position 202.

[0326] It should be understood that when the distance between the first radiator 210 and the fourth radiator 270 is within the above range, the directivity of the antenna 200 is better improved. The distance between the first radiator 210 and the fourth radiator 270 can be understood as the distance between the center (geometric center) of the first radiator 210 and the center of the fourth radiator 270.

[0327] In one embodiment, antenna 200 includes a second radiator 218. Second radiator 218 is a conductive portion of frame 11 between first position 201 and third position 203. A first end of second radiator 218 (the end closest to third position 203) is grounded, and a second end (the end closest to first position 201) is open.

[0328] In one embodiment, the second radiator 218 is configured to generate a third parasitic resonance, and a resonance point frequency of the third parasitic resonance is higher than a resonance point frequency of the first resonance generated by the first radiator 210 .

[0329] It should be understood that the second radiator 218 can improve the radiation efficiency and system efficiency of the antenna 200 in the first resonant frequency band, so that the antenna 200 has better radiation characteristics in the first frequency band.

[0330] In one embodiment, the second radiator 218 may further include a sixth connection point 246 . The electronic device 10 may further include a second tuning circuit 272 . The second tuning circuit 272 is coupled to the sixth connection point 246 .

[0331] It should be understood that the second tuning circuit 272 can be used to adjust the resonant frequency of the parasitic resonance generated by the second radiator 218, causing the second radiator 218 to generate a third parasitic resonance and a fourth parasitic resonance. When the first radiator 210 also generates a first resonance in the linear DM mode, the second radiator 218 generates a third parasitic resonance, the resonant frequency of which is higher than the resonant frequency of the first resonance. This can improve the radiation efficiency and system efficiency of the antenna 200 within the resonant frequency band of the first resonance. When the first radiator 210 also generates a second resonance in the linear DM mode, the second radiator 218 generates a fourth parasitic resonance, the resonant frequency of which is higher than the resonant frequency of the second resonance. This can improve the radiation efficiency and system efficiency of the antenna 200 within the resonant frequency band of the second resonance.

[0332] In one embodiment, the frequency difference between the resonance point of the third parasitic resonance and the resonance point of the first resonance is greater than or equal to 200 MHz and less than or equal to 500 MHz. In one embodiment, the frequency difference between the resonance point of the fourth parasitic resonance and the resonance point of the second resonance is greater than or equal to 200 MHz and less than or equal to 500 MHz.

[0333] It should be understood that because the ends of the radiators on both sides of the first position 201 are open, when an electrical signal is fed into the feed point, the coupling between the first radiator 210 and the second radiator 218 is relatively strong. Therefore, there is a certain frequency gap between the resonance point of the parasitic resonance generated by the second radiator 218 and the resonance point of the resonance generated by the first radiator 210. When the frequency difference between the resonance point of the third parasitic resonance (the fourth parasitic resonance) and the resonance point of the first resonance (the third resonance) is greater than or equal to 200 MHz and less than or equal to 500 MHz, the radiation efficiency and system efficiency of the antenna 200 in the first frequency band (the second frequency band) are significantly improved.

[0334] In one embodiment, the length D2 of the frame between the fifth connection point 245 and the fifth position 205 and the length H2 of the frame between the fifth position 205 and the third position 203 satisfy: D2 ≤ H2×30%. In one embodiment, D2 ≤ H2×10%. In one embodiment, D2 is less than or equal to 3 mm.

[0335] In one embodiment, the length D3 of the frame between the sixth connection point 246 and the first position 201 and the length H3 of the frame between the first position 201 and the third position 203 satisfy: D3 ≤ H3 × 30%. In one embodiment, D3 ≤ H3 × 10%. In one embodiment, D3 is less than or equal to 3 mm.

[0336] It should be understood that the third connection point 243 can be set in an area close to the second position 202. The first end and the second end of the first radiator 210 are open ends. The area near the open end generally has a strong electric field. The area with a strong electric field has better tuning performance.

[0337] In one embodiment, the frame 11 may further include a fourth position 204 and a sixth position 206, as shown in FIG38 . The sixth position 206 may be located at the third side 133, where the first side 131, the third side 133, and the second side 132 intersect at an angle. The frame 11 may have a gap at the sixth position 206. The frame 11 may be coupled to the floor at the fourth position.

[0338] In one embodiment, the antenna 200 includes a fifth radiator 280. The first end of the fifth radiator 280 (the end close to the fourth position 204) is grounded, and the second end is an open end (the end close to the sixth position 206).

[0339] In one embodiment, the fifth radiator 280 is configured to generate a fifth parasitic resonance, and the resonance point frequency of the fifth parasitic resonance is lower than the resonance point frequency of the second resonance generated by the first radiator 210 .

[0340] When the first radiator 210 generates the second resonance in the linear DM mode, the fifth radiator 280 can be stimulated to generate the fifth parasitic resonance. In one embodiment, when an electrical signal is fed into the feeding point of the first radiator 210, at the resonance point of the second resonance, the current in the first radiator 210 and the current in the fifth radiator 280 are in the same direction. This can extend the path of the current generated by the first radiator 210, achieving an effect similar to current arraying, and further improving the directivity of the antenna 200.

[0341] In one embodiment, the fifth radiator 280 may further include a seventh connection point 247 . The electronic device 10 may further include a third tuning circuit 273 . The third tuning circuit 273 is coupled to the seventh connection point 247 .

[0342] It should be understood that the third tuning circuit 273 can be used to adjust the resonant point frequency of the parasitic resonance generated by the fifth radiator 280, so that the fifth radiator 280 generates the fifth and sixth parasitic resonances. When the first radiator 210 also generates the first resonance in the linear DM mode (for example, in the antenna structure 200 shown in Figures 9, 17, 23, and 24, the first radiator 210 is used to generate the first and second resonances), the fourth radiator 270 generates the sixth parasitic resonance. At the resonant point of the first resonance, the current on the first radiator 210 and the current on the fourth radiator 270 are in the same direction, which can extend the path of the current generated by the first radiator 210, achieve an effect similar to current arraying, and improve the directivity of the antenna 200 in the first frequency band.

[0343] Therefore, the fifth parasitic resonance and the first parasitic resonance generated by the fifth radiator 280 can extend the path of the current generated by the first radiator 210 in the first frequency band and the second frequency band, obtaining an effect similar to current arraying, which can improve the directivity of the antenna 200.

[0344] In one embodiment, the frequency difference between the resonance point of the second resonance and the resonance point of the fifth parasitic resonance is greater than 0 MHz and less than or equal to 200 MHz. In one embodiment, the frequency difference between the resonance point of the first resonance and the resonance point of the sixth parasitic resonance is greater than 0 MHz and less than or equal to 200 MHz.

[0345] It should be understood that when the frequency difference between the resonance point of the second resonance (first resonance) and the resonance point of the fifth parasitic resonance (sixth parasitic resonance) is greater than 0 MHz and less than or equal to 200 MHz, the feeding point feeds an electrical signal, and at the resonance point of the second resonance (first resonance), the current generated on the fifth radiator 280 and the current on the first radiator 210 account for a larger proportion, which can further improve the directivity of the antenna 200.

[0346] In one embodiment, the length D4 of the frame between the seventh connection point 247 and the sixth position 206 and the length H4 of the frame between the fourth position 204 and the sixth position 206 satisfy the following conditions: D4 ≤ H4×30%. In one embodiment, D4 ≤ H4×10%. In one embodiment, D4 is less than or equal to 3 mm.

[0347] FIG39 is a schematic diagram of an electronic device 10 provided in an embodiment of the present application.

[0348] It should be understood that since satellite communication and cellular communication (or short-range communication) are not performed simultaneously, in the above embodiment, it is shown that when the electronic device 10 performs satellite communication, the first radiator can generate the first resonance and the second resonance (or the first radiator, the second radiator, or the third radiator shown in Figure 29 or Figure 30 can generate the first resonance and the second resonance), so that the antenna can have good radiation characteristics in the first frequency band and the second frequency band. When the electronic device 10 does not perform satellite communication, the above radiator can be reused as the radiator of the antenna for cellular communication (or short-range communication).

[0349] In the above embodiment, the frame 11 has gaps at the first position 201 , the second position 202 , the fifth position 205 , and the sixth position 206 , and is coupled to the floor 300 at the grounding point 215 , the third position 203 , and the fourth position 204 .

[0350] As shown in FIG39 , the conductive portion of the frame between the ground point 215 and the first position 202 can serve as a radiator 301. The radiator 301 and the feed circuit 311 form a first antenna. In one embodiment, the feed circuit 311 can be the first feed circuit 221 in the above-described embodiment. In one embodiment, the tuning circuit 281 can be used to adjust the resonant frequency of the resonance generated by the first antenna. In one embodiment, the tuning circuit 281 can be the first ground circuit 231 or the third ground circuit 233 in the above-described embodiment. The first ground circuit 231 or the third ground circuit 233 in the above-described embodiment can be used to switch the electrical connection between the radiator 301 and the floor 300 with the electronic components to adjust the resonant frequency of the resonance generated by the first antenna.

[0351] In one embodiment, the conductive portion of the frame between the first position 201 and the third position 203 can serve as a radiator 302. Radiator 302 and feeding circuit 312 form a second antenna. In one embodiment, feeding circuit 312 can be the third feeding circuit 223 in the above-described embodiment. In one embodiment, tuning circuit 282 can be used to adjust the resonant frequency of the resonance generated by the second antenna. In one embodiment, tuning circuit 281 can be the second tuning circuit 272 in the above-described embodiment.

[0352] In one embodiment, the conductive portion of the frame between the third position 203 and the fifth position 205 can serve as a radiator 303. Radiator 303 and feed circuit 313 form a third antenna. In one embodiment, tuning circuit 283 can be used to adjust the resonant frequency of the resonance generated by the third antenna. In one embodiment, tuning circuit 283 can be the first tuning circuit 271 described in the above embodiment.

[0353] In one embodiment, the conductive portion of the frame between the second position 202 and the fourth position 204 can serve as a radiator 304. The radiator 304 and the feeding circuit 314 form a fourth antenna. In one embodiment, the tuning circuit 284 can be used to adjust the resonant frequency of the resonance generated by the fourth antenna.

[0354] In one embodiment, the conductive portion of the frame between the fourth position 204 and the sixth position 206 can serve as a radiator 305. Radiator 305 and feeding circuit 315 form a fifth antenna. In one embodiment, tuning circuit 285 can be used to adjust the resonant frequency of the resonance generated by the fifth antenna. In one embodiment, tuning circuit 285 can be the third tuning circuit 273 described in the above embodiment.

[0355] It should be understood that radiators 301, 302, 303, 304, and 305 described in the embodiments of this application have one end grounded and the other end open, and that the first, second, third, fourth, and fifth antennas can all operate in quarter-wavelength mode. In quarter-wavelength mode, the current and electric field on the radiator have the same direction, with the current peak near the ground end and the electric field peak near the open end.

[0356] In one embodiment, the operating frequency band of the first antenna may include 2.4 GHz of WiFi, and / or at least part of the frequency band in sub 6G, for example, n77 frequency band.

[0357] In one embodiment, the operating frequency band of the second antenna may include the L1 frequency band in GPS, and / or at least part of the frequency band in sub 6G, for example, the n79 frequency band.

[0358] In one embodiment, the operating frequency band of the third antenna may include at least part of the frequency band in the middle band (MB) (1710MHz-2170MHz) and / or at least part of the frequency band in the high band (HB) (2300MHz-2690MHz), for example, B1 (1920MHz-1980MHz), B3 (1710MHz-1785MHz) and B7 (2500MHz-2570MHz) in LTE.

[0359] In one embodiment, the operating frequency band of the fourth antenna may include at least part of the frequency band in the intermediate frequency and / or at least part of the frequency band in the high frequency, for example, B1 (1920MHz–1980MHz), B3 (1710MHz–1785MHz) and B7 (2500MHz–2570MHz) in LTE.

[0360] In one embodiment, the operating frequency band of the fifth antenna may include at least part of the frequency band in the intermediate frequency and / or at least part of the frequency band in the high frequency, for example, B1 (1920MHz–1980MHz), B3 (1710MHz–1785MHz) and B7 (2500MHz–2570MHz) in LTE.

[0361] It should be understood that the above embodiment only illustrates the allocation of operating frequency bands for some antennas. In actual production or design, the operating frequency bands of the above antennas may also be adjusted. In one embodiment, the operating frequency band of the third antenna may include at least part of the lowband (LB) frequency band, such as B5, B8, and B28 in LTE.

[0362] In one embodiment, grounding can be achieved at the grounding point 215 through a first grounding member 321 (eg, a metal spring), as shown in Figure 40. The width of the first grounding member 331 connected to the frame is greater than or equal to 2 mm and less than or equal to 8 mm.

[0363] It should be understood that providing a grounding structure at the grounding point 215 can provide better isolation between the first antenna and the fourth antenna. As the width of the connection between the first grounding member 321 and the frame increases, the isolation between the first antenna and the fourth antenna increases.

[0364] In one embodiment, the frame 11 is directly electrically connected to the floor 300 at the second connection point 242 or the fourth connection point 244 or is electrically connected via a 0 ohm resistor, which can further improve the isolation between the first antenna and the fourth antenna.

[0365] In one embodiment, grounding can be achieved at the third position 203 by a second grounding member 322 (eg, a metal spring). The width of the second grounding member 332 connected to the frame is greater than or equal to 2 mm and less than or equal to 12 mm.

[0366] It should be understood that providing a grounding structure at the third position 203 can provide better isolation between the second antenna and the third antenna. As the width of the second grounding member 332 connected to the frame increases, the isolation between the second antenna and the third antenna increases.

[0367] In one embodiment, grounding can be achieved by a third grounding member 323 (eg, a metal spring) at the fourth position 204. The width of the connection between the third grounding member 333 and the frame is greater than or equal to 1 mm and less than or equal to 20 mm.

[0368] It should be understood that the grounding structure at the fourth position 204 can provide better isolation between the fourth antenna and the fifth antenna. As the width of the connection between the third grounding member 333 and the frame increases, the isolation between the fourth antenna and the fifth antenna increases.

[0369] In one embodiment, the length R1 of the radiator 301 (the length of the conductor portion of the frame between the ground point 215 and the first position 202 ) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1×35%≤R2≤L1×60%.

[0370] In one embodiment, the length R2 of the radiator 302 (the length of the conductor portion of the frame between the first position 201 and the third position 203 ) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1×35%≤R2≤L1×60%.

[0371] In one embodiment, the length R3 of the radiator 303 (the length of the conductor portion of the frame between the third position 203 and the fifth position 205 ) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1×30%≤R3≤L1×55%.

[0372] In one embodiment, the length R4 of the radiator 304 (the length of the conductor portion of the frame between the second position 202 and the fourth position 204 ) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1×40%≤R4≤L1×65%.

[0373] In one embodiment, the length R5 of the radiator 305 (the length of the conductor portion of the frame between the fourth position 204 and the sixth position 206 ) and the length L1 of the frame between the first position 201 and the second position 202 satisfy: L1×40%≤R4≤L1×65%.

[0374] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An electronic device, characterized in that: include: floor; A frame, comprising a first position and a second position, wherein the frame is provided with a first gap and a second gap at the first position and the second position respectively; An antenna, comprising: A first radiator and a first feeding circuit, wherein the first radiator is a conductive portion of the frame between the first position and the second position, the first radiator comprises a first feeding point, and the first feeding circuit is coupled to the first feeding point for feeding electrical signals of a first frequency band and a second frequency band; a first ground control circuit and a second ground control circuit, the first radiator comprising a first connection point and a second connection point, the first connection point being located between the first position and the second connection point, the first feeding point being located between the first position and the first connection point, a first end of the first ground control circuit being coupled to the first connection point, a second end of the first ground control circuit being coupled to the floor, a first end of the second ground control circuit being coupled to the second connection point, and a second end of the second ground control circuit being coupled to the floor; The first radiator is used to generate a first resonance corresponding to the first frequency band, and the first radiator, the first grounding control circuit and the second grounding control circuit are used to generate a second resonance corresponding to the second frequency band, and the resonance point frequency of the second resonance is higher than the resonance point frequency of the first resonance.

2. The electronic device according to claim 1, characterized in that: At the resonance point of the first resonance, the currents on the first radiator are in the same direction; At the resonance point of the second resonance, the current on the first radiator between the first end of the first radiator and the first connection point is in the same direction as the current on the first radiator between the second end of the first radiator and the second connection point, the first end of the first radiator is an end of the first radiator at the first position, and the second end of the first radiator is an end of the first radiator at the second position.

3. The electronic device according to claim 1 or 2, characterized in that: At the resonance point of the first resonance, the central area of ​​the first radiator includes a large current point; At the resonance point of the second resonance, the first current region and the second current region include a large current point, the first current region includes the first connection point, and the second current region includes a second connection point.

4. The electronic device according to any one of claims 1 to 3, characterized in that: The first grounding control circuit or the second grounding control circuit includes at least one of the following circuits: A filter circuit, wherein the filter circuit is in an off state in the first frequency band and the filter circuit is in an on state in the second frequency band; The switch circuit includes a first switch, wherein the switch is in an off state in the first frequency band and in an on state in the second frequency band.

5. The electronic device according to any one of claims 1 to 4, characterized in that: The distance between the first feeding point and the first position is less than or equal to 5 mm.

6. The electronic device according to any one of claims 1 to 5, characterized in that: A ratio of a distance between the first connection point and the second connection point to a length of the first radiator is less than or equal to two thirds.

7. The electronic device according to any one of claims 1 to 6, characterized in that: A ratio of a distance between the first connection point and the second connection point to a length of the first radiator is greater than or equal to one third and less than or equal to three fifths.

8. The electronic device according to any one of claims 1 to 7, characterized in that: A ratio between a resonance point frequency of the second resonance and a resonance point frequency of the first resonance is greater than 1 and less than or equal to 3.

9. The electronic device according to any one of claims 1 to 8, characterized in that: A ratio between a resonance point frequency of the second resonance and a resonance point frequency of the first resonance is greater than or equal to 1.5 and less than or equal to 2.

5.

10. The electronic device according to any one of claims 1 to 9, characterized in that: A ratio of a distance between the first connection point and a center of the first radiator to a distance between the second connection point and a center of the first radiator is greater than or equal to 0.9 and less than or equal to 1.

1.

11. The electronic device according to any one of claims 1 to 10, characterized in that: The first feeding circuit includes a first radio frequency channel and a second radio frequency channel. The first radio frequency channel is used to feed signals in the first frequency band, and the second radio frequency channel is used to feed signals in the second frequency band.

12. The electronic device according to any one of claims 1 to 11, characterized in that: The first radiator further includes a third connection point, and the third connection point is located between the second position and the second connection point; The antenna further includes a tuning circuit, a first end of the tuning circuit is coupled to the third connection point, and a second end of the tuning circuit is coupled to the floor.

13. The electronic device according to any one of claims 1 to 11, characterized in that: The antenna further includes a second feeding circuit; The first radiator includes a second feeding point, the second feeding point is located between the second position and the second connection point, and the second feeding circuit is coupled to the second feeding point for feeding electrical signals of the first frequency band and the second frequency band.

14. The electronic device according to claim 13, characterized in that: The first radiator further includes a third connection point and a fourth connection point, the third connection point is located between the first position and the first connection point, and the fourth connection point is located between the second position and the second connection point; The antenna further comprises a third ground control circuit and a fourth ground control circuit, wherein a first end of the third ground control circuit is coupled to the third connection point, a second end of the third ground control circuit is coupled to the floor, a first end of the fourth ground control circuit is coupled to the fourth connection point, and a second end of the fourth ground control circuit is coupled to the floor; Wherein, the third grounding control circuit comprises a second switch, and the second switch is used to switch the coupling connection state between the third grounding control circuit and the third connection point; The fourth grounding control circuit includes a third switch, and the third switch is used to switch the coupling connection state between the fourth grounding control circuit and the fourth connection point.

15. The electronic device according to claim 14, characterized in that: Based on the electrical signals of the first frequency band and the second frequency band fed into the first feeding point, the second switch is in an off state and the third switch is in an on state; Based on the electrical signals of the first frequency band and the second frequency band being fed into the second feeding point, the second switch is in an on state and the third switch is in an off state.

16. The electronic device according to any one of claims 13 to 15, characterized in that: The second feeding circuit includes a third radio frequency channel and a fourth radio frequency channel. The third radio frequency channel is used to feed signals in the first frequency band, and the fourth radio frequency channel is used to feed signals in the second frequency band.

17. The electronic device according to any one of claims 13 to 16, characterized in that: A ratio of a distance between the first feeding point and a center of the first radiator to a distance between the second feeding point and a center of the first radiator is greater than or equal to 0.9 and less than or equal to 1.

1.

18. The electronic device according to any one of claims 1 to 17, characterized in that: The antenna is a satellite antenna, the first frequency band is a transmitting frequency band of the satellite antenna, and the second frequency band is a receiving frequency band of the satellite antenna.

19. The electronic device according to any one of claims 1 to 18, characterized in that: The electronic device further comprises a middle frame, wherein the middle frame comprises the frame and a middle plate, wherein the middle plate is electrically connected to the floor; Among them, the frame is connected to the middle plate through a first connecting rib structure, and the connection between the first connecting rib structure and the frame is located between the first position and the second position; and the connection between the first connecting rib structure and the frame is located between the first connection point and the second connection point of the first radiator.

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