Electronic equipment

Abstract

The invention provides electronic equipment which comprises an antenna. According to the antenna, a conductive part of a frame of the electronic equipment is used as a radiating body, and the radiating body is in coupling connection with a floor through a first grounding control circuit and a second grounding control circuit at a first connecting point and a second connecting point. By arranging the first grounding control circuit and the second grounding control circuit, the coupling connection states of the radiator and the floor at the first connection point are different, and the coupling connection states of the radiator and the second connection point and the floor are different, so that the radiator is used for generating first resonance and second resonance.

Description

[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”, all contents of which are incorporated by reference in 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 technology has gradually become a major feature of mobile terminal devices. Unlike traditional cellular antennas, the design of satellite antennas needs to take into account the directional patterns generated by the satellite antenna in the transmitting and receiving frequency bands. When the maximum radiation direction of the directional pattern generated by the transmitting frequency band is significantly different from the maximum radiation direction of the directional pattern generated by the receiving frequency band, the transmitting frequency band will be aligned with the satellite (the maximum radiation direction points to the satellite), while the receiving frequency band cannot be aligned with the satellite, resulting in a significant decrease in the accuracy of the antenna transmitting electrical signals.

[0004] However, for antennas working in different frequency bands, the radiation patterns generated are mostly inconsistent. Therefore, how to maintain the consistency of the radiation patterns generated by satellite antennas in different frequency bands is a major design difficulty. Summary of the invention

[0005] The present application provides an electronic device, including an antenna. The antenna uses a portion of a conductive frame of the electronic device as a radiator, so that 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 are less different, so that the electronic device has good satellite communication performance.

[0006] In a first aspect, an electronic device is provided, comprising: a floor; a conductive frame, comprising a first position and a second position, wherein the frame has a first slit and a second slit respectively at the first position and the second position; an antenna, wherein the antenna comprises: 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, the first feeding circuit is coupled to the first feeding point, and is used to feed electrical signals of a first frequency band and a second frequency band; a first grounding control circuit and a second grounding control circuit, wherein the first radiator comprises a first connection point and a second connection point, the first connection point is located between the first position and the second connection point, the first feeding point is located between the first position and the first connection point, a first end of the first grounding control circuit is coupled to the first connection point, a second end of the first grounding control circuit is coupled to the floor, a first end of the second grounding control circuit is coupled to the second connection point, and a second end of the second grounding control circuit is coupled to the floor; wherein the first radiator is used to generate a first resonance corresponding to the first frequency band, 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 a resonance point frequency of the second resonance is higher than a resonance point frequency of the first resonance.

[0007] According to the technical solution provided in the embodiment 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 working 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 transmitting frequency band and the receiving frequency band in satellite communication. In addition, the first radiator is reused to generate the first resonance and the second resonance, and the size of the antenna is small.

[0008] 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.

[0009] According to the technical solution provided in the embodiment of the present application, the first resonance and the second resonance are both generated by the line DM mode described in the above embodiment. Since the current generated by the line DM mode is mainly generated by the first radiator, multiple current modes will not be generated on the floor, and it is easy to determine the maximum radiation direction of the directional pattern generated by the antenna.

[0010] 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 area and the second current area include a large current point, the first current area includes the first connection point, and the second current area includes the second connection point.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] In combination with the first aspect, in some implementations of the first aspect, 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.

[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 or equal to 1.5 and less than or equal to 2.5.

[0018] 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 center of the first radiator to a 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.

[0019] 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.

[0020] In combination with the first aspect, in certain implementations of the first aspect, the first radiator also includes a third connection point, wherein the third connection point is located between the second position and the second connection point; the antenna also includes a tuning circuit, wherein 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.

[0021] In combination with the first aspect, in certain implementations of the first aspect, the antenna also 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.

[0022] In combination with the first aspect, in some implementations of the first aspect, the first radiator also 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 also includes a third grounding control circuit and a fourth grounding control circuit, the first end of the third grounding control circuit is coupled to the third connection point, the second end of the third grounding control circuit is coupled to the floor, the first end of the fourth grounding control circuit is coupled to the fourth connection point, and the second end of the fourth grounding control circuit is coupled to the floor; wherein the third grounding control circuit includes a second switch, 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, the third switch is used to switch the coupling connection state between the fourth grounding control circuit and the fourth connection point.

[0023] 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 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 fed into the second feeding point, the second switch is in an on state and the third switch is in an off state.

[0024] 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.

[0025] In combination with the first aspect, in some implementations of the first aspect, a ratio of a distance between the first feeding point and the center of the first radiator to a 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.

[0026] 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.

[0027] In combination with the first aspect, in some implementations of the first aspect, the frame further includes a grounding point, and the grounding point is located between the first position and the second position; the electronic device further includes a middle frame, and the middle frame includes the frame and a middle plate, wherein the middle plate is electrically connected to the floor;

[0028] 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.

[0029] 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 slit and a second slit 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 Feeding point coupling, the first feeding circuit and the fourth feeding circuit are used to feed the electrical signal of the first frequency band, and the second feeding circuit and the third feeding circuit are used to feed the electrical signal of the 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, 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.

[0030] 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 via a first connecting rib structure, and a connection between the first connecting rib structure and the frame is located between the first position and the second position; and a connection between the first connecting rib structure and the frame is located between a first connection point and a second connection point of the first radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of an electronic device 10 provided in an embodiment of the present application.

[0032] Figure 2 This is a schematic diagram of the common mode structure of an antenna provided in the present application and the corresponding current and electric field distribution.

[0033] Figure 3 This is a schematic diagram of the structure of a differential mode of an antenna provided in the present application and the corresponding current and electric field distribution.

[0034] Figure 4 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0035] Figure 5 yes Figure 4 The S-parameter simulation results of the antenna 100 in the electronic device 10 are shown.

[0036] Figure 6 yes Figure 4 The simulation results of system efficiency and radiation efficiency of the antenna 100 in the electronic device 10 are shown.

[0037] Figure 7 This is a directional pattern generated by a line CM mode of an antenna provided by the present application.

[0038] Figure 8 This is a directional pattern generated by a linear DM mode of an antenna provided by the present application.

[0039] Fig. 9 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

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

[0041] Fig.11 yes Fig. 9 FIG. 2 is a schematic diagram of current distribution of the antenna 200 when the first connection point and the second connection point are coupled to the ground.

[0042] Fig.12 yes Fig. 9 The directional diagram of the antenna 200 when the first connection point and the second connection point are directly coupled to the floor.

[0043] Fig.13 yes Fig. 9 FIG. 2 is a schematic diagram of current distribution when the antenna 200 is coupled to the floor through inductance at the first connection point and the second connection point.

[0044] Fig.14 yes Fig. 9The directional diagram of the antenna 200 when the first connection point and the second connection point are coupled to the floor through inductance is shown in FIG.

[0045] Fig.15 yes Fig. 9 FIG. 2 is a schematic diagram of current distribution of the antenna 200 when the first connection point and the second connection point are coupled to the floor through capacitance.

[0046] Fig.16 yes Fig. 9 The directional diagram of the antenna 200 when the first connection point and the second connection point are coupled to the floor through capacitance is shown in FIG.

[0047] Fig.17 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0048] Fig.18 yes Fig.17 S-parameter simulation results of the antenna shown in .

[0049] Fig.19 yes Fig.17 FIG. 1 is a schematic diagram of current distribution of the antenna at the first resonance point (2 GHz).

[0050] Fig. 20 yes Fig.17 FIG. 5 is a schematic diagram of current distribution of the antenna at the second resonance point (3.6 GHz).

[0051] Fig.21 yes Fig.17 The radiation pattern of the antenna shown in FIG. 1 at the resonance point (2 GHz) of the first resonance.

[0052] Fig. 22 yes Fig.17 The radiation pattern of the antenna shown in FIG. 1 at the resonance point (3.6 GHz) of the second resonance.

[0053] Fig.23 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0054] Fig.24 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0055] Fig.25 yes Fig.24 The antenna shown in FIG. 1 is a directional diagram at the first resonant resonance point (2 GHz) when an electrical signal is fed into the antenna by the first feeding point.

[0056] Fig.26 yes Fig.24 The directional pattern of the antenna at the second resonant point (3.6 GHz) when the first feeding point of the antenna is fed with an electrical signal.

[0057] Fig. 27 yes Fig.24 The directional pattern of the antenna at the resonance point of the first resonance (2GHz) when the electrical signal is fed into the antenna by the second feeding point.

[0058] Fig.28 yes Fig.24 The directional pattern of the antenna at the second resonant point (3.6 GHz) when the second feeding point of the antenna is fed with an electrical signal.

[0059] Fig.29 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0060] Fig.30 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0061] Fig.31 yes Fig.29 S-parameter diagram of the antenna shown in .

[0062] Fig.32 yes Fig.29 A plot of simulation results for the system efficiency of the antenna shown in .

[0063] Fig.33 yes Fig.29 The directional pattern of the antenna at the first resonant resonance point (2 GHz) when the electrical signal is fed into the antenna by the third feeding point.

[0064] Fig.34 yes Fig.29 The directional pattern of the antenna at the second resonant point (3.6 GHz) when the first feeding point of the antenna is fed with an electrical signal.

[0065] Fig.35 yes Fig.29 The directional pattern of the antenna at the first resonant resonance point (2 GHz) when the electrical signal is fed into the antenna by the fourth feeding point.

[0066] Fig.36 yes Fig.29 The directional pattern of the antenna at the second resonant point (3.6 GHz) when the second feeding point of the antenna is fed with an electrical signal.

[0067] Fig.37 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0068] Fig.38 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0069] Fig.39 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0070] Fig.40 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0071] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0072] It should be understood that the term "and / or" used in this article is only a description of the same field of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0073] When used in this application, “within the range of…”, unless it is separately specified that an 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.

[0074] Coupling: can be understood as direct coupling and / or indirect coupling, and "coupled connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be called "electrical connection", which is understood as the physical contact and electrical conduction between components; it can also be understood as the connection between different components in the circuit structure 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 called capacitive coupling, for example, signal transmission is achieved by coupling between the gaps between two conductive parts to form an equivalent capacitor.

[0075] Component / device: includes at least one of lumped component / device and distributed component / device.

[0076] Lumped component / device: refers to the collective name for all components when the size of the component is much smaller than the wavelength relative to the circuit operating frequency. For the signal, regardless of any time, the component characteristics always remain fixed and are independent of frequency.

[0077] 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.

[0078] Capacitance: It 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.

[0079] Inductance: It 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 parts.

[0080] Radiator: It is a device in the antenna used to receive / send electromagnetic wave radiation. In some cases, the "antenna" in a narrow sense is understood as a radiator, which converts the waveguide energy from the transmitter into radio waves, or converts radio waves into waveguide energy, which is used to radiate and receive radio waves. The modulated high-frequency current energy (or waveguide energy) generated by the transmitter is transmitted to the transmitting radiator via the feeder line, and is converted into a certain polarized electromagnetic wave energy by the radiator and radiated in the desired direction. The receiving radiator converts a certain polarized electromagnetic wave energy from a specific direction in space into modulated high-frequency current energy, which is transmitted to the receiver input via the feeder line.

[0081] 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 may be referred to as a linear antenna. In one embodiment, the linear radiator may be implemented by a conductive frame, and may also be referred to as a frame antenna. In one embodiment, the linear radiator may be implemented by a bracket conductor, and may also be referred to as a bracket antenna. In one embodiment, the linear radiator, or the radiator of the linear antenna, has a wire diameter (e.g., including thickness and width) much smaller than the wavelength (e.g., the dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), and the length may be comparable to the wavelength (e.g., the dielectric wavelength) (e.g., 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 dipole 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 generally includes two radiating branches, and each branch is fed by a feeding unit 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 PIFA, Planar Inverted FAntenna). 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 a circle, a rectangle, a ring, etc., and the present application does not limit the specific shape. The structure of the microstrip antenna is generally composed of a dielectric substrate, a radiator and a floor, wherein the dielectric substrate is arranged between the radiator and the floor.

[0082] The radiator may also include a slot or a slit formed on the conductor, for example, a closed or semi-closed slot or slit formed on a grounded conductor surface. In one embodiment, a slotted or slitted radiator may be referred to as a slot antenna or a slot antenna. In one embodiment, the radial dimension (e.g., including the width) of the slot or slit 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 about 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 slit may be referred to as a closed slot antenna. In one embodiment, a radiator with a semi-closed slot or slit (e.g., an opening is added to a closed slot or slit) may be referred to as an open slot antenna. In some embodiments, the slot shape is a long strip. In some embodiments, the length of the slot is about half a wavelength (e.g., the dielectric wavelength). In some embodiments, the length of the slot is about an integer multiple of the wavelength (e.g., one times the dielectric wavelength). In some embodiments, the slot can be fed by a transmission line connected across one or both sides thereof, thereby exciting a radio frequency electromagnetic field on the slot and radiating electromagnetic waves into space. In one embodiment, the radiator of the slot antenna or slot antenna can be realized by a conductive frame with both ends grounded, which can also be called a frame antenna; in this embodiment, it can be regarded as that the slot antenna or slot antenna includes a linear radiator, which is spaced apart from the floor and grounded at both ends of the radiator, thereby forming a closed or semi-closed slot or slot. In one embodiment, the radiator of the slot antenna or slot antenna can be realized by a bracket conductor with both ends grounded, which can also be called a bracket antenna.

[0083] 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 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.

[0084] In some embodiments, the electronic device may further include a test socket (or referred to as a radio frequency socket or a radio frequency test socket). The test socket may be used to insert a coaxial cable to test the characteristics of the radio frequency front-end circuit or the radiator of the antenna through the cable. The radio frequency front-end circuit may be considered as a circuit portion coupled between the test socket and the transceiver.

[0085] 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.

[0086] 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 RF channel in a transceiver (for example, a port (pin) of a RF chip); they can also share a RF front-end circuit, for example, processing signals through a switch or amplifier in a RF front-end.

[0087] It should also be understood that two feeding circuits in the first / second / ...Nth feeding circuits in the present application usually correspond to two radio frequency test sockets in the electronic device.

[0088] The matching circuit is a circuit used to adjust the radiation characteristics of the antenna. In one embodiment, the matching circuit is coupled between the feed circuit and the corresponding radiator. In one embodiment, the matching circuit is coupled between the test socket and the radiator. Generally, the matching circuit is a combination of circuits coupled between the radiator and the floor. In one embodiment, the matching circuit may include a switch and / or an electronic component, and the switch may be an electronic component for switching the coupling connection of the radiator. The matching circuit has the function of impedance matching and / or frequency tuning. Generally, it is considered to be a part of the antenna.

[0089] The grounding structure / feeding structure may include a connector, such as a metal spring, and the radiator is coupled to the floor through the grounding structure / 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 line.

[0090] End / point: The "end / point" in the first end / second end / feeding end / grounding end / feeding point / grounding point / connection point of the antenna radiator cannot be narrowly understood as an end point or end portion that is physically disconnected from other radiators, but can also be considered as a point or a section on a continuous radiator. In one embodiment, the "end / point" may include a connection / coupling area on the antenna radiator that is coupled to other conductive structures. For example, the feed end / feeding point may be a coupling area on the antenna radiator that is coupled to a feed structure or a feed circuit (for example, an area facing a portion of the feed circuit). For another example, the ground end / grounding point may be a connection / coupling area on the antenna radiator that is coupled to a ground structure or a ground circuit.

[0091] 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 suspended 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 and connected through the open end to transfer coupling energy (which can be understood as transferring current).

[0092] In some embodiments, the "closed end" can also be understood from the perspective of current distribution. The closed end or the grounded end, etc., 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 / small 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 / small electric field can be maintained by opening a gap at or near the closed end (for example, a gap filled with insulating material).

[0093] In some embodiments, the "open end" can also be understood from the perspective of current distribution. The open end or suspended end, etc., can be understood as a point with smaller current on the radiator, or as a point with larger 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 smaller current point / larger electric field point.

[0094] It should be understood that coupling the radiator end at a gap (from the perspective of the structure of the radiator, it is similar to a radiator at an opening of an open end or a 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.

[0095] The “suspended radiator” mentioned in the embodiments of the present application means that the radiator is not directly connected to the feeder line / feeder branch and / or the grounding line / grounding branch, but is fed and / or grounded through indirect coupling.

[0096] It should be understood that the "suspended" in "suspended end" or "suspended radiator" does not mean that there is no structure around the radiator to support it. In one embodiment, the suspended radiator can be, for example, a radiator disposed on the inner surface of the insulating back cover.

[0097] 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 distributed current in the same direction on a conductor that is bent or annular (for example, the current path is also bent or annular), it should be understood that, for example, the main current stimulating on the conductors on both sides of the annular conductor (for example, a conductor surrounding a gap, on the conductors on both sides of the gap) is opposite in direction, but it still belongs to the definition of the distributed current in the same direction in the embodiments of the present application. In one embodiment, the current same direction on a conductor may refer to the current on the conductor having no reverse point. In one embodiment, the current reverse on a conductor may refer to the current on the conductor having at least one reverse point. In one embodiment, the current same direction on two conductors may refer to the current on both conductors having no reverse point and flowing in the same direction. In one embodiment, the current reverse on two conductors may refer to the current on both conductors having no reverse point and flowing in opposite directions. The current same direction / reverse direction on multiple conductors can be understood accordingly.

[0098] The electric field in the same direction / reverse direction mentioned in the embodiments of the present application should be understood as the direction of the main electric field (for example, the electric field between the conductor and the floor) generated by the conductor in the space is in the same direction / reverse direction. For example, when a unidirectional distributed electric field is excited on a bent or ring-shaped conductor (for example, the gap formed between the floor and the conductor is also bent or ring-shaped), it should be understood that, for example, the direction of the electric field in the gap is from the floor to the conductor, or from the conductor to the floor. Although the main electric field excited in the gaps on both sides of the ring-shaped conductor (for example, a conductor surrounding a gap, in the gaps on both sides of the gap) is reversed in direction, it still belongs to the definition of the unidirectional distributed electric field in the embodiments of the present application. In one embodiment, the electric field in the same direction between a conductor and the floor can refer to the electric field between the conductor and the floor having no reverse point. In one embodiment, the electric field in the reverse direction between a conductor and the floor can refer to the electric field between the conductor and the floor having at least one reverse point. In one embodiment, the electric field in the same direction between two conductors and the floor can refer to the electric fields between the two conductors and the floor having no reverse point and radiating in the same direction (for example, the positive direction of the z-axis). In one embodiment, the electric field reversal between two conductors and the floor may mean that the electric fields between the two conductors and the floor have no reversal points and flow in opposite directions. The electric fields between multiple conductors and the floor may be understood to be in the same direction / opposite direction accordingly.

[0099] Resonance / resonance frequency: The resonance frequency is also called the resonance frequency. The resonance frequency may refer to the frequency at which the imaginary part of the antenna input impedance is zero. The resonance 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 mentioned in this application for the antenna / radiator "generating the first resonance" should be the fundamental mode resonance generated by the antenna / radiator, or the lowest frequency resonance generated by the antenna / radiator.

[0100] Resonance frequency band / communication frequency band / working frequency band: Regardless of the type of antenna, it always works within a certain frequency range (band width). For example, an antenna that supports the B40 frequency band has a working frequency band that includes frequencies in the range of 2300MHz to 2400MHz, or in other words, the working frequency band of the antenna includes the B40 frequency band. The frequency range that meets the index requirements can be regarded as the working frequency band of the antenna.

[0101] Electrical length: It can refer to the ratio of physical length (ie mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave. The electrical length can satisfy the following formula:

[0102]

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

[0104] Wavelength: or operating wavelength, which can be the wavelength corresponding to the center frequency of the resonant frequency or the center frequency of the operating frequency band supported by the antenna. For example, assuming that the center frequency of the B1 uplink frequency band (resonant frequency is 1920MHz to 1980MHz) is 1955MHz, then the operating wavelength can be the wavelength calculated using the frequency of 1955MHz. Not limited to the center frequency, "operating wavelength" can also refer to the wavelength corresponding to the non-center frequency of the resonant frequency or the operating frequency band.

[0105] It should be understood that the wavelength of the radiation signal in the 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: Among them, 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" may 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 can understand that efficiency is generally expressed as a percentage, and there is a corresponding conversion relationship between efficiency and dB. The closer the efficiency is to 0 dB, the better the efficiency of the antenna.

[0107] Antenna pattern: also called radiation pattern. It refers to the graph of the relative field strength (normalized modulus) of the antenna radiation field changing with direction at a certain distance from the antenna (far field). It is usually represented by two mutually perpendicular plane patterns in the direction of maximum radiation of the antenna.

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

[0109] Polarization direction of the antenna: At a given point in space, the electric field strength E (vector) is a function of time t. As time goes by, the endpoints of the vector periodically draw a trajectory in space. If the 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 the trajectory is an ellipse or a circle, when observed along the propagation direction, it rotates in the right hand or clockwise direction over time, which is called right-hand circular polarization (RHCP). If it rotates in the left hand or counterclockwise direction over time, it is called left-hand circular polarization (LHCP).

[0110] Antenna return loss: It can be understood as the ratio of the signal power reflected back to the antenna port through the antenna circuit to the transmit power of the antenna port. The smaller the reflected signal, the larger the signal radiated into space through the antenna, and the greater the radiation efficiency of the antenna. The larger the reflected signal, the smaller the signal radiated into space through the antenna, and the lower the radiation efficiency of the antenna.

[0111] Antenna return loss can be represented by the S11 parameter, which is one of the S parameters. S11 represents the reflection coefficient, which can characterize the antenna transmission efficiency. The S11 parameter is usually a negative number. The smaller the S11 parameter is, the smaller the antenna return loss is, and the less energy is reflected back by the antenna itself, which means that more energy actually enters the antenna, and the higher the antenna system efficiency is; the larger the S11 parameter is, the greater the antenna return loss is, and the lower the antenna system efficiency is.

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

[0113] Ground (GND): can 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. "GND" can be used for grounding components in electronic devices. In one embodiment, "ground" can be a grounding layer of a circuit board of an electronic device, or a grounding plate formed by a frame of an electronic device, or a grounding metal layer formed by a metal film under a 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 glass fiber, 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, a touch screen, input buttons, a transmitter, a processor, a memory, a battery, a charging circuit, a system on chip (SoC) structure, etc. can be mounted on or connected to a circuit board; or electrically connected to a wiring layer and / or a ground layer in the circuit board. For example, a radio frequency source is disposed on the wiring layer.

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

[0115] Grounding: refers to coupling with the above-mentioned ground / floor in any way. In one embodiment, grounding can be achieved through physical grounding, such as physical grounding (or physical ground) at a specific position on the frame through some structural parts of the middle frame. In one embodiment, grounding can be achieved through device grounding, such as grounding through devices such as capacitors / inductors / resistors connected in series or in parallel (or device ground).

[0116] The technical solution of the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0117] like Figure 1 As shown, the electronic device 10 may include: a cover 13, a display screen / module (display) 15, a printed circuit board (PCB) 17, a middle frame (middle frame) 19 and a rear cover (rear cover) 21. It should be understood that in some embodiments, the cover 13 may be a glass cover, or may be replaced by a cover made of other materials, such as a PET (Polyethylene terephthalate) material cover.

[0118] The cover plate 13 may be disposed closely to 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 semiconductor (OLED) display panel, etc., but the embodiment of the present application does not limit this.

[0120] The middle frame 19 mainly supports the entire device. Figure 1It is shown that PCB17 is arranged between the middle frame 19 and the back cover 21. It should be understood that in one embodiment, PCB17 can also be arranged between the middle frame 19 and the display module 15, and the embodiment of the present application does not limit this. Among them, the printed circuit board PCB17 can adopt a flame retardant 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 retardant material, and the Rogers dielectric board is a high-frequency board. Electronic components, such as radio frequency chips, etc. are carried on PCB17. In one embodiment, a metal layer can be provided on the printed circuit board PCB17. The metal layer can be used for grounding the electronic components carried on the printed circuit board PCB17, and can also be used for grounding 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 PCB17. In one embodiment, the metal layer for grounding can be provided on the side of the printed circuit board PCB17 close to the middle frame 19. In one embodiment, the edge of the printed circuit board PCB17 can be regarded as the edge of its grounding layer. In one embodiment, the metal middle frame 19 can also be used for grounding the above components. The electronic device 10 can also have other floors / grounding plates / grounding layers, as described above, which will not be repeated 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 the embodiment of the present application does not limit this. 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, wherein 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 fix the display module 15.

[0123] In one implementation, the frame 11 made of a conductive material can be directly used as a conductive frame of the electronic device 10, for example, forming the appearance of a metal frame, suitable for a metal industrial design (ID). In one implementation, the outer surface of the frame 11 can be a conductive material, such as a metal material, to form the appearance of a metal frame. In these implementations, the conductive portion of the frame 11 can be used as an antenna radiator of 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, 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 (or book, the conductive material on the inner surface) arranged on the inner surface of the frame 11 is arranged in contact with the non-conductive material of the frame 11 to facilitate antenna radiation, and 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. The middle frame 19 including the border 11 is an integral part, which can support the electronic devices in the whole machine. The cover plate 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 plate 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 plate 13, the back cover 21, the border 11 or the middle frame 19, or to refer to part or all of any combination of the cover plate 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 receive / transmit radio frequency signals. There can be a gap between this portion of the frame serving as the radiator and other portions of the middle frame 19, thereby ensuring that the antenna radiator has a good radiation environment. In one embodiment, the middle frame 19 can be provided with an aperture at this portion of the frame serving as the radiator to facilitate antenna radiation.

[0127] Alternatively, the frame 11 may not be considered as a part of the middle frame 19. In one embodiment, the frame 11 may be connected to the middle frame 19 and formed integrally. 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 may 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 a 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 may be a back cover made of metal material; or a back cover made of non-conductive material, such as a glass back cover, a plastic back cover, or a back cover made of both conductive and non-conductive materials. In one embodiment, the back cover 21 made of conductive material may replace the middle frame 19 and be integrated with the frame 11 to support the electronic components in the whole device.

[0129] In one embodiment, the middle frame 19 and / or the conductive parts in the back cover 21 can be used as the reference ground of 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 arranged 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 arranged close to the frame 11 to minimize the volume occupied by the antenna radiator and to be closer to the outside of the electronic device 10 to achieve better signal transmission effect. It should be noted that the antenna radiator is arranged close to the frame 11 means that the antenna radiator can be arranged close to the frame 11, or it can be arranged 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 the electronic device 10 may also be disposed in the housing, such as a bracket antenna, a millimeter wave antenna, etc. ( Figure 1 ). The clearance of the antenna disposed in the housing can be obtained by the slits / openings on any one of the middle frame, and / or the frame, and / or the back cover, and / or the display screen, or by the non-conductive gap / aperture formed between any of them. The clearance setting of the antenna can ensure the radiation characteristics of the antenna. It should be understood that the clearance of the antenna can be a non-conductive area formed by any conductive components in the electronic device 10, and the antenna radiates signals to the external space through the non-conductive area. In one embodiment, the antenna 40 can be in the form of an antenna based on a flexible printed circuit (FPC), an antenna based on laser direct structuring (LDS), or a microstrip disk antenna (MDA). In one embodiment, the antenna can also be a transparent structure embedded in the screen of the electronic device 10, so that the antenna is a transparent antenna unit embedded in the screen of the electronic device 10.

[0132] Figure 1 Only some components of the electronic device 10 are schematically shown, and the actual shapes, sizes and structures of these components are not subject to the present invention. Figure 1 limited.

[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 side, the surface where the back cover is located can be considered as the back side, and the surface where the frame is located can be considered as the side side.

[0134] It should be understood that in the embodiments of the present application, when the user is holding the 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 the user is holding the 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 grounding control circuit and a second grounding control circuit. By setting the first grounding control circuit and the second grounding control circuit, the radiator can be coupled to the floor at the first connection point in different states, and the radiator can be coupled to the floor at the second connection point in different states, 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, by Figure 2 and Figure 3 To introduce this application, four antenna modes will be involved. Among them, Figure 2 This is a schematic diagram of the common mode structure of an antenna provided in the present application and the corresponding current and electric field distribution. Figure 3 This is a schematic diagram of the structure of the differential mode of another antenna provided in the present application and the corresponding current and electric field distribution. Figure 2 and Figure 3 The antenna radiator is open at both ends, and its common mode mode and differential mode can be called line common mode mode and line differential mode mode respectively.

[0137] It should be understood that the “common-differential mode” or “CM-DM mode” in the present 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] Figure 2(a) in the figure shows that the radiator of the antenna 40 is open at both ends and 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 is connected to the radiator and the other end is grounded, wherein the connection point between the feeding circuit and the radiator (feeding point) is located at the center of the radiator, and 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] Figure 2 (b) in FIG. 4 shows the current and electric field distribution of the antenna 40. Figure 2 As shown in (b), 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. Figure 2 As shown in (b) in FIG. 4 , the current at the feeder 42 is distributed in the same direction. Based on the current distribution in the feeder 42, Figure 2 The feeding shown in (a) in FIG. 4 is called line CM feeding. Based on the reverse distribution of the current on both sides of the connection between the radiator and the feeding line 42, Figure 2 The antenna mode shown in (b) in the figure can be called a linear CM mode (it can also be simply referred to as a CM mode. For example, for a linear antenna, the CM mode refers to a linear CM mode). Figure 2 The current and electric field shown in (b) can be called the current and electric field of the line CM mode, respectively.

[0142] The current is stronger at the middle position 41 of the antenna 40 (the current is stronger near the middle position 41 of the antenna 40), and weaker at both ends of the antenna 40, such as Figure 2 As shown in (b) in FIG. 4 , the electric field is weak at the middle position 41 of the antenna 40 and is strong at both ends of the antenna 40 .

[0143] It should be understood that the current high point may correspond to the electric field zero point, for example, the current high point corresponds to the electric field zero point one by one. The current high point may be understood as the point where the intensity of the radiator current is the maximum, and correspondingly, it may 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] like Figure 3 (a) in the figure shows that the left and right ends of the two radiators of the antenna 50 are open ends, and the feeding circuit is connected at the middle position 51. In one embodiment, the feeding form of the antenna 50 adopts anti-symmetrical feed. One end of the feeding circuit is connected to one of the radiators through the feeding line 52, and the other end of the feeding circuit is connected to the other radiator through the feeding line 52. The middle position 51 can be the geometric center of the 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 that the positive and negative poles of the feeding unit are respectively connected to two connection points near the above-mentioned midpoint of the radiator. In one embodiment, the positive and negative poles of the feeding unit output signals with the same amplitude and opposite phases, for example, the phase difference is 180°±10°.

[0147] Figure 3 (b) in FIG. 5 shows the current and electric field distribution of the antenna 50. Figure 3 As shown in (b) of FIG. 5 , the current is distributed in the same direction on both sides of the middle position 51 of the antenna 50, for example, in an anti-symmetrical distribution; and the electric field is distributed in opposite directions on both sides of the middle position 51. Figure 3 As shown in (b) in FIG. 5 , the current at the feeder 52 presents a reverse distribution. Based on the reverse distribution of the current at the feeder 52, Figure 3 The feeding shown in (a) in FIG. 5 is called line DM feeding. Based on the fact that the current is distributed in the same direction on both sides of the connection between the radiator and the feeding line 52, Figure 3 The antenna mode shown in (b) can be called a linear DM mode (can also be simply referred to as a DM mode. For example, for a linear antenna, the DM mode refers to a linear DM mode). Figure 3 The current and electric field shown in (b) can be called the current and electric field of the line DM mode, respectively.

[0148] The current is stronger at the middle position 51 of the antenna 50 (the current is stronger near the middle position 51 of the antenna 50), and weaker at both ends of the antenna 50, such as Figure 3 As shown in (b) in FIG. 5 , the electric field is weak at the middle position 51 of the antenna 50 and is strong at both ends of the linear antenna 50 .

[0149] It should be understood that the antenna radiator can be understood as a metal structure that generates radiation, and the number of the metal structure can be one, such as Figure 2 As shown, or, it can be two pieces, such as Figure 3 As shown, it can be adjusted according to actual design or production needs. For example, for the line CM mode, it can also be Figure 3As shown in the figure, two radiators are used, and the two ends of the two radiators are 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 close to each other, and the same Figure 2 The antenna structure shown in FIG. 1 has a similar effect. Correspondingly, for the line DM mode, it can also be Figure 2 As shown in the figure, a radiator is used, two feeding points are set at the middle position 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 respectively, the same power supply as in the embodiment of the present invention can be obtained. Figure 3 The antenna structure shown has a similar effect.

[0150] 3. Line CM-DM mode

[0151] Above Figure 2 and Figure 3 The figures show the line CM mode and line DM mode respectively generated by using different feeding methods when both ends of the radiator are open.

[0152] When the antenna is fed in an asymmetric way (the feeding point is offset from the middle of the radiator, including side feeding or offset feeding), or the grounding point of the radiator (where it is coupled with the floor) is asymmetric (the grounding point is offset from the middle of the radiator), the antenna can simultaneously generate the first resonance and the second resonance, corresponding to the line CM mode and the line DM mode, respectively. For example, the first resonance corresponds to the line CM mode, and the current and electric field distribution are as follows: Figure 2 The second resonance corresponds to the line DM mode, and the current and electric field distribution are shown in (b). Figure 3 As shown in (b) in .

[0153] Figure 4 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0154] like Figure 4 As shown, 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, and the frame 11 may have a gap in 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] Figure 5 and Figure 6 yes Figure 4 The simulation result diagram of the antenna 100 in the electronic device 10 is shown. Figure 5 yes Figure 4 The S-parameter simulation results of the antenna 100 in the electronic device 10 are shown. Figure 6 yes Figure 4 The simulation results of system efficiency and radiation efficiency of the antenna 100 in the electronic device 10 are shown.

[0158] It should be understood that Figure 4 Based on the structure of the antenna 100 shown, the linear CM mode and the linear DM mode described in the above embodiments are excited by different feeding methods.

[0159] like Figure 5 As shown, the antenna can resonate around 2 GHz in both the linear CM mode and the linear DM mode.

[0160] like Figure 6 As shown, at the resonance point (2GHz), the radiation efficiency of the line CM mode is -4.42dB, the system efficiency is -4.47dB, the radiation efficiency of the line DM mode is -1.27dB, and the system efficiency is -1.39dB.

[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 mode 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 mode on the floor increases. Due to the increase of the current mode on the floor, different currents will generate radiation in different directions, and it is difficult to determine the maximum radiation direction of the directional pattern generated by the antenna.

[0164] For example, when the radiator operates in the line CM mode, due to multiple current modes on the floor, 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), as shown in FIG. Figure 7 For the sake of brevity, only Figure 7 In one embodiment, when the current on the floor is more concentrated on the left side (for example, with greater intensity), the maximum radiation direction of the directional pattern generated by the antenna deviates to the left side from the top direction of the electronic device 10.

[0165] It should be understood that when the user performs satellite navigation or communication, the maximum radiation direction of the antenna 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 maximum radiation direction of the antenna is the z direction, the maximum radiation direction of the antenna points to 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 the linear DM mode, the radiation of the antenna is mainly generated by the radiator (first frame), and multiple current modes are not generated on the floor, so it is easy to determine the maximum radiation direction of the directional pattern generated by the antenna. In addition, since the current in the linear DM mode is mainly concentrated on the radiator (first frame), it is easy to determine that the maximum radiation direction of the directional pattern generated by the antenna 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, such as Figure 8 shown.

[0167] Fig. 9 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0168] like Fig. 9 As shown, 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 has 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 of 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 corresponds to the receiving frequency band of the satellite antenna.

[0172] The antenna 200 further includes a first grounding control circuit 231 and a second grounding control circuit 232. The first radiator 210 includes a first connection point 241 and a second connection point 242. The first end of the first grounding control circuit 231 is coupled to the first connection point 241, and the second end of the first grounding control circuit 231 is coupled to the floor 300 for grounding. The first end of the second grounding control circuit 232 is coupled to the second connection point 242, and the second end of the second grounding control circuit 232 is coupled to the floor 300 for grounding. The first connection point 241 is located between the first position 201 and the second connection point 242, and the second connection point 242 is located between the first connection point 241 and the second position 202. The first feeding point 211 is located between the first connection point 241 and the 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 as including 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 and connected to the first radiator 210 at the same position, for example, electrically connected to the first radiator 210 through the same metal spring.

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

[0175] It should be understood that the first radiator 210 is used to generate the first resonance, which can be understood as the first radiator 210 is used to generate the first resonance, wherein the length of the first radiator 210 directly affects the first resonance (for example, 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 (for example, the frequency of the resonance point). The first radiator 210, the first grounding control circuit 231 and the second grounding control circuit 232 are used to generate the second resonance, which can be understood as the first radiator 210, the first grounding control circuit 231 and the second grounding control circuit 232 are all 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 directly affect the second resonance (for example, the frequency of the resonance point). In one embodiment, the positions of the first connection point 241 and the second connection point 242 on the first radiator 210 also affect the second resonance (for example, the frequency of the resonance point).

[0176] In one embodiment, at the resonance point of the first resonance, the first grounding control circuit 231 and the second grounding control circuit 232 are in the first circuit state. At the resonance point of the second resonance, the first grounding control circuit 231 and the second grounding control circuit 232 are in the 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 of disconnection (open circuit) and conduction (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 are in this state, and the first radiator 210 is equivalent to an open circuit with 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 and connected to the floor 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 are in this state, and the first radiator 210 is equivalent to a short circuit with 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 and connected to the floor 300).

[0178] According to the technical solution provided by the embodiment of the present application, the antenna 200 generates the first resonance and the second resonance respectively through different parts of the first radiator 210 through the different working states of the first ground control circuit 231 and the second ground control circuit 232. At the resonance point of the first resonance, the first ground control circuit 231 and the second ground control circuit 232 are in the first circuit state, and the antenna 200 can generate the first resonance through the entire first radiator 210. At the resonance point of the second resonance, the first ground control circuit 231 and the second ground control circuit 232 are in the second circuit state, and the antenna 200 can generate the second resonance through the first radiator 210 between the first position 201 and the first connection point 241 and the second position 202 and the second connection point 242. The antenna 200 can generate the first resonance and the second resonance through the first radiator 210, so that the electronic device 10 works in the transmitting frequency band and the receiving frequency band in satellite communication. In addition, the first radiator 210 is reused to generate the first resonance and the second resonance, and the size of the antenna 200 is small.

[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 filter circuit and a switch circuit. The filter circuit may include a high-pass low-resistance filter. For example, the filter circuit is in an off state in the first frequency band and in an on state in the second frequency band. The switch circuit may refer to a circuit including a switch. For example, the switch in the switch 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 that 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 that 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 the current on the first radiator 210 is basically unable to 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 the current on the first radiator 210 can basically 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, and the first radiator 210 may be coupled to the floor 300 through the physical or device grounding point. The setting position of the physical or device grounding point may refer to, for example Fig.30 shown.

[0183] In one embodiment, the entity or device grounding point of the first radiator 210 may be located in the central area of ​​the first radiator 210. In one embodiment, the entity grounding point may be electrically connected to the floor 300 through a grounding member (such as a metal spring, a metal rib, etc.). In one embodiment, the device grounding point may be electrically connected to the floor 300 through a device such as a capacitor / inductor.

[0184] In one embodiment, the electronic device includes a middle frame, the middle frame includes a frame 11 and a middle plate, wherein the middle plate is electrically connected to the floor 300. In one embodiment, the frame 11 is connected to the middle plate through a first connecting rib structure (not shown in the figure), and 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.

[0185] It should be understood that when the first radiator 210 generates the first resonance, the central area includes a large current point, and setting a physical or device grounding point in this area does not affect the current distribution on the first radiator 210, and therefore, does not substantially 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 make the current further concentrated on the first radiator 210 between the first position and the first connection point 241 and 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 the 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 this application Fig.17 , Fig.23 , Fig.24 In the illustrated embodiment, 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 can be implemented in a variety of different ways. For the sake of simplicity, only the above two circuits are used as examples for illustration. The first grounding control circuit 231 and the second grounding control circuit 232 can adopt the same structure (for example, both through electronic components, filter circuits, switches, etc.), or the first grounding control circuit 231 and the second grounding control circuit 232 can be implemented using different structures respectively. The embodiment of the present application does not limit this. In the subsequent embodiments, only the first grounding control circuit 231 and the second grounding control circuit 232 using the same structure are used as an example for illustration.

[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 of the first radiator 210 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 of the first radiator 210.

[0190] It should be understood that the first resonance and the second resonance are both generated by the line DM mode described in the above embodiment. Since the current generated by the line DM mode is mainly generated by the first radiator 210, multiple current modes are not generated on the floor 300, and it is 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 area of ​​the first radiator 210 can be understood as an area within a certain range (for example, 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 area 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 with large 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, and 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 resonance generated by the line DM mode of the antenna 200 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, and the lengths of the second side 132 on both sides of the virtual axis are 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, and 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 may be generated by the line DM mode in the above embodiment. The second resonance may be generated by the line DM mode in the above embodiment.

[0202] In one embodiment, 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.

[0203] In one embodiment, 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.

[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, the 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 resonance point of the second resonance and the resonance point of the first resonance, and when the ratio between the resonance point frequency of the second resonance and the resonance 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 resonance point frequency of the second resonance and the resonance 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 larger the equivalent inductance value, the larger 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 grounding control circuit 231 and the second grounding 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 grounding control circuit 231 and the second grounding control circuit 232 include only one electronic component, the equivalent capacitance value of the electronic component in the first grounding control circuit 231 and the equivalent capacitance value of the electronic component in the second grounding control circuit 232 are substantially the same (for example, the range of the equivalent capacitance value of the electronic component in the second grounding control circuit 232 is within the range of ±25% of the equivalent capacitance value of the electronic component in the first grounding 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 through the metal spring, the above distance can be understood as the length of the conductor part of the frame between the midpoint of the metal spring and the first position 202, which can be understood accordingly in the embodiments of the present application.

[0214] In one embodiment, the antenna 200 may further include an electronic component 230. The first radiator 210 includes a third connection point 243, and the third connection point 243 is located between the second connection point 242 and the second position 202. A first end of the electronic component 230 is coupled to the third connection point 243, and a second end of the electronic component 230 is coupled to the ground 300 to achieve 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 is symmetrical with the first feeding point 211 along the virtual axis of the first radiator 210, and the lengths of the first radiator 210 on both sides of the virtual axis are 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 of a first frequency band) is used to generate a first resonance, and the second RF channel 2212 (for feeding an electrical signal of a second frequency band) is used to generate a second resonance. Fig.10 As shown. Among them, the first RF channel 2211 can be used to feed a first electrical signal so that the antenna 200 generates a first resonance, which can correspond to a transmitting frequency band in satellite communication. The second RF channel 2212 can be used to feed a second electrical signal so that the antenna 200 generates a second resonance, which can correspond to a receiving frequency band in satellite communication. 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 (RF IC).

[0217] It should be understood that the embodiment of the present application feeds the electrical signal to 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 transmitting frequency band and the receiving frequency band in the satellite communication operate in time division duplexing (TDD), the first feeding circuit 221 may further include a switch 2213, such as Fig.10 As shown in (a) in FIG. 1 , 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 transmitting frequency band and the receiving 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 and 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 transmitting frequency band and the receiving frequency band in the satellite communication operate in frequency division duplexing (FDD), the first feeding circuit 221 may further include a combiner 2214, such as Fig.10As shown in (b) in FIG. 1 , a first end of the combiner 2214 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 .

[0222] It should be understood that when the transmitting frequency band and the receiving 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 yes Fig. 9 The simulation result diagram of the antenna 200 at the resonance point of the second resonance is shown in FIG. Fig.11 yes Fig. 9 FIG. 2 is a schematic diagram of current distribution of the antenna 200 when the first connection point and the second connection point are coupled to the ground. Fig.12 yes Fig. 9 The directional diagram of the antenna 200 when the first connection point and the second connection point are directly coupled to the floor. Fig.13 yes Fig. 9 FIG. 2 is a schematic diagram of current distribution when the antenna 200 is coupled to the floor through inductance at the first connection point and the second connection point. Fig.14 yes Fig. 9 The directional diagram of the antenna 200 when the first connection point and the second connection point are coupled to the floor through inductance is shown in FIG. Fig.15 yes Fig. 9 FIG. 2 is a schematic diagram of current distribution of the antenna 200 when the first connection point and the second connection point are coupled to the floor through capacitance. Fig.16 yes Fig. 9 The directional diagram of the antenna 200 when the first connection point and the second connection point are coupled to the floor through capacitance is shown in FIG.

[0225] It should be understood that Figures 11 to 16 In the simulation results, 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] like Fig.11As shown, when the first connection point 241 and the 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 resonance point of the second resonance, the current is mainly concentrated on the first radiator between the first position 201 and the first connection point 241, and the second position 202 and the second connection point 242, and the current on the first radiator between the first connection point 241 and the second connection point 242 is less. Therefore, the second resonance of the antenna is mainly generated by the first radiator between the first position 201 and the first connection point 241, and the second position 202 and the second connection point 242.

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

[0228] like Fig.12 As shown, 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] like Fig.13 As shown, when the first connection point 241 and the second connection point 242 are coupled to the ground through an inductor (the first grounding control circuit and the second grounding control circuit only include an inductor) (for example, the inductor value is 1.5 nH), at the resonance point of the second resonance, the current is mainly concentrated on the first radiator between the first position 201 and the first connection point 241, and the second position 202 and the second connection point 242, and the current on the first radiator between the first connection point 241 and the second connection point 242 is less. Therefore, the second resonance of the antenna is mainly generated by the first radiator between the first position 201 and the first connection point 241, and the second position 202 and the second connection point 242.

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

[0231] Fig.13 The current distribution shown is Fig.11 The current distribution shown is similar. At the resonance point of the second resonance, 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] like Fig.14As shown, 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] like Fig.15 As shown, when the first connection point 241 and the second connection point 242 are coupled to the ground through inductance (the first ground control circuit and the second ground control circuit only include capacitance) (for example, the capacitance value is 2.2pF), at the resonance point of the second resonance, the current is mainly concentrated on the first radiator between the first position 201 and the first connection point 241, and the second position 202 and the second connection point 242, and the current on the first radiator between the first connection point 241 and the second connection point 242 is less. Therefore, the second resonance of the antenna is mainly generated by the first radiator between the first position 201 and the first connection point 241, and the second position 202 and the second connection point 242.

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

[0235] It should be understood that for the sake of simplicity of discussion, 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] Fig.15 The current distribution shown is Fig.11 The current distribution shown is similar. At the resonance point of the second resonance, the capacitor coupled with 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] like Fig.16 As shown, 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] Fig.17 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

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

[0240] It should be understood that when the first grounding control circuit 231 and the second grounding control circuit 232 are filter circuits, the first circuit state and the second circuit state are high impedance state and low impedance state of the filter circuit. When the antenna generates the first resonance, the first grounding control circuit 231 and the second grounding control circuit 232 are in a high impedance state, and the first radiator 210 is equivalent to an open circuit with 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 and connected to the floor 300). When the antenna generates the second resonance, the first grounding control circuit 231 and the second grounding control circuit 232 are in a low impedance, and the first radiator 210 is equivalent to a short circuit with 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 and connected to the floor 300).

[0241] In one embodiment, the first grounding control circuit 231 may include a first electronic component 251, a second electronic component 252, and a third electronic component 253. The first end of the first electronic component 251 and the first end of the second electronic component 252 are coupled to the first connection point 241, the second end of the first electronic component 251 and the second end of the second electronic component 252 are coupled to the first end of the third electronic component 253, and the second end of the third electronic component 253 is coupled to the floor 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, wherein the same can be understood as the same number of electronic components included 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 a first end of the sixth electronic component 256, and a second end of the sixth electronic component 256 is coupled to the floor 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 structured as described above. In actual production or design, the first grounding control circuit 231 and the second grounding control circuit 232 may also be filter 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 range of 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, the antenna 200 may further include a tuning circuit 233. The first radiator 210 includes a third connection point 243, and the third connection point 243 is located between the second connection point 242 and the second position 202. A first end of the tuning circuit 233 is coupled to the third connection point 243, and a second end of the tuning circuit 233 is coupled to the ground 300 to achieve grounding.

[0247] It should be understood that the tuning circuit 233 can be used to determine the resonance point frequency of the first resonance and the resonance 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 when the physical length of the radiator remains unchanged, so that the resonance point frequency of the resonance is shifted to a high frequency. In one embodiment, when the tuning circuit 233 is equivalent to an inductor, the electrical length of the radiator can be reduced when the physical length of the radiator remains unchanged, so that the resonance point frequency of the resonance is shifted to a low 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 resonance point frequency of the first resonance and the resonance 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: D1≤L1×30%. In one embodiment, D1≤L1×10%, such as Figure 8 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. There is generally a strong electric field in the area near the open end. 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 the opposite direction 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 of 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 yes Fig.17 The simulation results of the antenna shown in . Among them, Fig.18 yes Fig.17 S-parameter simulation results of the antenna shown in . Fig.19 yes Fig.17 FIG. 1 is a schematic diagram of current distribution of the antenna at the first resonance point (2 GHz). Fig. 20 yes Fig.17 FIG. 5 is a schematic diagram of current distribution of the antenna at the second resonance point (3.6 GHz). Fig.21 yes Fig.17 The radiation pattern of the antenna shown in FIG. 1 at the resonance point (2 GHz) of the first resonance. Fig. 22 yes Fig.17 The radiation pattern of the antenna shown in FIG. 1 at the resonance point (3.6 GHz) of the second resonance.

[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] like Fig.18 As shown, 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<-4dB) can include the transmitting frequency band of satellite communication, and the resonant frequency band of the second resonance (e.g., S11<-4dB) can include the receiving frequency band of satellite communication.

[0257] like Fig.19 As shown, at the resonance point of the first resonance, all branches of the first radiator have strong current. Therefore, the first resonance of the antenna is generated by the entire first radiator. In addition, the currents on the first radiator are in the same direction.

[0258] like Fig. 20 As shown, at the resonance point of the second resonance, the current is mainly concentrated on the first radiator between the first position and the first connection point, and the second position and the second connection point, and the current on the first radiator between the first connection point and the second connection point is less. Therefore, the second resonance of the antenna is mainly generated by the first position and the first connection point, and the first radiator between the second position and the second connection point. In addition, the current on the first radiator between the first position and the first connection point is in the same direction as the current on the first radiator between the second position and the second connection point.

[0259] like Fig.21 As shown in (a), it is the three-dimensional radiation pattern of the antenna at the resonance point of the first resonance (2GHz). Fig.21 (b) in FIG. 1 is a planar radiation pattern of the antenna at the resonance point (2 GHz) of the first resonance in a plane (e.g., xoz plane). At the resonance point of the first resonance, the maximum radiation direction of the radiation pattern generated by the antenna is the top direction of the electronic device (e.g., z direction).

[0260] like Fig. 22 As shown in (a), it is the three-dimensional radiation pattern of the antenna at the second resonance point (3.6GHz). Fig. 22 (b) in FIG. 1 is a planar radiation pattern of the antenna at the resonance point (3.6 GHz) of the second resonance in a plane (e.g., xoz plane). At the resonance point of the first resonance, the maximum radiation direction of the radiation pattern generated by the antenna is the top direction of the electronic device (e.g., 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 angle alignment between 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 patterns 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] Furthermore, 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] Fig.23 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0264] like Fig.23 As shown, the first grounding control circuit 231 may include a first switch 261, and the first switch 261 is used to switch the coupling connection state between the first feeding 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 feeding circuit 231.

[0265] It should be understood that for the sake of simplicity of discussion, in the embodiments of the present application, only an example is used to illustrate that no other electronic components are set between the first switch 241 and the first connection point 241. 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 grounding control circuit 232 may include a second switch 262, which is used to switch the coupling connection 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 Fig.17 In the electronic device 10 shown, the first grounding control circuit 231 and the second grounding control circuit 232 are filter circuits, and the first circuit state and the second circuit state are switched through the high impedance state and the low impedance state of the filter circuit. Fig.23 In the electronic device 10 shown, the switching between the first circuit state and the second circuit state can be achieved by turning on or off the first switch 261 and the second switch 262 .

[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, and the first switch 261 is used to switch the coupling connection 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 connection 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] Fig.24 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0272] like Fig.24 As shown, 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 of 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 corresponds 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 both sides 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. Among them, different directional patterns can be understood as different maximum radiation directions of the directional patterns.

[0276] In one implementation, 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 according to the strength of the signal received by the antenna 200. For example, in the second resonance corresponding receiving frequency band, in this working 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, the ratio of the distance between the first feeding point 211 and the center of the first radiator 210 to the distance between the second feeding 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, 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, the antenna 200 further includes a third ground control circuit 233 and a fourth ground control circuit 234. A first end of the third ground control circuit 233 is coupled to the third connection point 243, and a second end of the third ground control circuit 233 is coupled to the ground 300. A first end of the fourth ground control circuit 234 is coupled to the fourth connection point 244, and a second end of the fourth ground control circuit 234 is coupled to the ground 300.

[0279] The third grounding control circuit 233 includes a first switch 261, and the first switch 261 is used to switch the coupling connection state between the third grounding control circuit 233 and the third connection point 243. The fourth grounding control circuit 234 includes a second switch 262, and the second switch 262 is used to switch the coupling connection state between the fourth grounding 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 the antenna 200 is fed with an electrical signal from the first feeding point 211, the first switch 261 is in an off state, the second switch 262 is in an on state, the third grounding control circuit 233 is not electrically connected to the third connection point 243, and the fourth grounding control circuit 234 is electrically connected to the fourth connection point 244. When the first feeding point 211 is fed with an electrical signal, the third grounding control circuit 233 adjusts the maximum radiation direction of the first directional pattern.

[0282] When the antenna 200 is fed with an electrical signal from the second feeding point 212, the first switch 261 is in an off state, the second switch 262 is in an 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. When the second feeding point 212 is fed with an electrical signal, the third ground control circuit 233 adjusts the maximum radiation direction of the second directional 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] Figure 25 to Figure 28 yes Fig.24 The simulation results of the antenna shown in . Among them, Fig.25 yes Fig.24 The antenna shown in FIG. 1 is a directional diagram at the first resonant resonance point (2 GHz) when an electrical signal is fed into the antenna by the first feeding point. Fig.26 yes Fig.24 The directional pattern of the antenna at the second resonant point (3.6 GHz) when the first feeding point of the antenna is fed with an electrical signal. Fig. 27 yes Fig.24 The directional pattern of the antenna at the resonance point of the first resonance (2GHz) when the electrical signal is fed into the antenna by the second feeding point. Fig.28 yes Fig.24 The directional pattern of the antenna at the second resonant point (3.6 GHz) when the second feeding point of the antenna is fed with an electrical signal.

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

[0287] like Fig.25 and Fig.26 As shown, when the antenna is fed with an electrical signal from the first 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 angle 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] like Fig. 27 and Fig.28 As shown, 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 angle 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 directional 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 directional 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] Fig.29 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0291] like Fig.29 As shown, the frame 11 may include a third position 203, a first position 201, a second position 202, and a fourth position 204 arranged in sequence. The frame 11 has a first gap and a second gap respectively formed in 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] The antenna 200 includes a first radiator 210, a second radiator 218, and a third radiator 219. The first radiator 210 is a conductive portion of the frame 11 between the first position 201 and the second position 202. The second radiator 218 is a conductive portion of the frame 11 between the first position 201 and the third position 203. The third radiator 219 is a conductive portion of the frame 11 between the fourth position 204 and the second position 202.

[0293] The antenna 200 further includes a first feeding circuit 221, a second feeding circuit 222, a third feeding circuit 223 and a fourth feeding circuit 224. The third feeding circuit 223 and the fourth feeding circuit 224 are used to feed electrical signals of the first frequency band, and the first feeding circuit 221 and the second feeding circuit 222 are used to feed electrical signals of the second frequency band. The first radiator 210 includes a first feeding point 211 and a second feeding point 212, the second radiator 218 includes a third feeding point 213, and the third radiator 219 includes a fourth feeding point 214. The first feeding circuit 221 is coupled to the first feeding point 211. The second feeding circuit 222 is coupled to the second feeding point 212. The third feeding circuit 223 is coupled to the third feeding point 213. The fourth feeding circuit 224 is coupled to the fourth feeding 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). 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 Fig.23 In the electronic device 10 shown, the first feeding circuit 221 includes the first RF channel and the second RF channel, the second feeding circuit 222 includes the third RF channel and the fourth RF channel, and the first radiator 210 generates the first resonance and the second resonance at the same time. Fig.29 In the electronic device 10 shown, the second resonance is generated by the first radiator 210 , and the first resonance is generated by the second radiator 218 and the third radiator 219 .

[0296] Similarly, the electronic device 10 can determine the feeding point of the antenna 200 according to the strength of the signal received by the antenna 200. For example, in the second resonance corresponding receiving frequency band, in this working 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 relatively large when the first feeding point 211 and the third feeding point 213 are used as feeding points, the first feeding point 211 and the third feeding point 213 are used as 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 an off state, the second switch is in an on state, the third grounding control circuit 233 is not electrically connected to the third connection point 243 , and the fourth grounding 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 an open state, the second switch is in an on state, the third grounding control circuit 233 is not electrically connected to the third connection point 243 , and the fourth grounding 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. Fig.30 shown.

[0300] It should be understood that in the electronic device 10, when the satellite communication and the cellular network are not working at the same time, they can share the same radiator to generate resonance. In this case, Fig.29The antenna 200 shown is more suitable for the internal layout of the electronic device 10. When the electronic device 10 does not perform satellite communication through the antenna 200, the first radiator and the first feeding circuit 221 between the first position 201 and the grounding point 215 form a first antenna, the first radiator and the second feeding circuit 222 between the second position 202 and the grounding point 215 form a second antenna, the second radiator 218 and the third feeding circuit 223 form a third antenna, and the third radiator 219 and the fourth feeding circuit 224 form a fourth antenna. At least some of the first antenna, the second antenna, the third antenna, and the fourth antenna can work in a cellular network.

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

[0302] It should be understood that when the first radiator 210 generates the first resonance, the central area includes a large current point, and setting a grounding point in this area 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 the second resonance between the first position and the first connection point 241 and the second position and the second connection point 242, setting a grounding point in this area 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, the middle frame including a frame 11 and a middle plate, wherein the middle plate is electrically connected to the floor 300. In one embodiment, the frame 11 is connected to the middle plate via a first connecting rib structure, 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 the first radiator 210.

[0304] Figure 31 to Figure 36 yes Fig.29 The simulation results of the antenna shown in . Among them, Fig.31 yes Fig.29 S-parameter diagram of the antenna shown in . Fig.32 yes Fig.29 A plot of simulation results for the system efficiency of the antenna shown in . Fig.33 yes Fig.29 The directional pattern of the antenna at the resonance point of the first resonance (2 GHz) when the electrical signal is fed into the antenna by the third feeding point. Fig.34 yes Fig.29 The directional pattern of the antenna at the second resonant point (3.6 GHz) when the first feeding point of the antenna is fed with an electrical signal. Fig.35 yes Fig.29The directional pattern of the antenna at the first resonant resonance point (2 GHz) when the electrical signal is fed into the antenna by the fourth feeding point. Fig.36 yes Fig.29 The directional pattern of the antenna at the second resonant point (3.6 GHz) when the second feeding point of the antenna is fed with an electrical signal.

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

[0306] like Fig.32 As shown, the antenna has good system efficiency (S1) in the first resonance frequency band. The antenna has good system efficiency (S2) in the second resonance frequency band.

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

[0308] like Fig.33 and Fig.34 As shown, when the antenna is fed with electrical signals by 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 angle 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] like Fig.35 and Fig.36 As shown, when the antenna is fed with electrical signals by the fourth feeding point and the second 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 angle 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 directional 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 directional 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] Fig.37 It is a schematic diagram of another electronic device 10 provided in an embodiment of the present application.

[0312] like Fig.37 As shown, the frame 11 may include a fifth position 205, a third position 203, a first position 201, and a second position 202 that are sequentially arranged. The frame 11 has a first gap, a second gap, and a third gap at the first position 201, the second position 202, and the fifth position, respectively. The frame 11 is 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] The antenna 200 includes a first radiator 210 and a fourth radiator 270. The first radiator 210 is a conductive portion of the frame 11 between the first position 201 and the second position 202. The fourth radiator 270 is a conductive portion of the frame 11 between the third position 203 and the fifth position 205. The first end (the end close to the first position 201) and the second end (the end close to the second position 202) of the first radiator 210 are open ends. The first end (the end close to the third position 203) of the fourth radiator 270 is a grounded end, and the second end is an open end (the end close to the fifth position 205).

[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, so that the path of the current generated by the first radiator 210 can be extended, and an effect similar to current array can be obtained, which can improve the directivity of the antenna 200. The directivity of the antenna 200 can be improved by the fourth radiator 270, and the energy radiated by the antenna 200 toward the top of the electronic device 10 (for example, 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 to obtain a good user experience.

[0317] It should be understood that Fig.37 The difference between the electronic device 10 shown in the embodiment and the electronic device 10 shown in the above embodiment is only the arrangement of the fourth radiator 270. When the first radiator 210 resonates, the directivity of the antenna 200 can be improved by the fourth radiator 270. Fig.24 A fourth radiator 270 is added to the structure of the antenna 200 shown, and 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 resonance 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. Fig. 9 , Fig.17 , Fig.23 , Fig.24 In the antenna structure 200 shown, the first radiator 210 is used to generate a first resonance and a second resonance), and the fourth radiator 270 generates a second parasitic resonance. At the resonance 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, so that the path of the current generated by the first radiator 210 can be extended, and an effect similar to a current array can be obtained, which can improve 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, thereby 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, the antenna 200 includes a second radiator 218. The second radiator 218 is a conductive portion of the frame 11 between the first position 201 and the third position 203. The first end (the end close to the third position 203) of the second radiator 218 is a grounded end, and the second end is an open end (the end close to the first position 201).

[0328] In one embodiment, the second radiator 218 is used to generate a third parasitic resonance, and the resonance point frequency of the third parasitic resonance is higher than the 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 resonance point frequency of the parasitic resonance generated by the second radiator 218, so that the second radiator 218 generates a third parasitic resonance and a fourth parasitic resonance. When the first radiator 210 also generates a first resonance by the line DM mode, the second radiator 218 generates a third parasitic resonance, and the resonance point frequency of the third parasitic resonance is higher than the resonance point frequency of the first resonance, which can improve the radiation efficiency and system efficiency of the antenna 200 in the resonance frequency band of the first resonance. When the first radiator 210 also generates a second resonance by the line DM mode, the second radiator 218 generates a fourth parasitic resonance, and the resonance point frequency of the fourth parasitic resonance is higher than the resonance point frequency of the second resonance, which can improve the radiation efficiency and system efficiency of the antenna 200 in the resonance 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, since the ends of the radiators on both sides of the first position 201 are open ends, when the electrical signal is fed into the feeding point, the coupling between the first radiator 210 and the second radiator 218 is relatively strong. Therefore, there is a certain frequency spacing 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 first resonance) is greater than or equal to 200MHz and less than or equal to 500MHz, the radiation efficiency and system efficiency of the antenna 200 in the first frequency band (the second frequency band) are well 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. There is generally a strong electric field in the area near the open end. 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. Fig.38 The sixth position 206 may be located at the third side 133, and the first side 131, the third side 133 and the second side 132 intersect at an angle. The frame 11 has a gap at the sixth position 206. The frame 11 is coupled to the floor at the fourth position.

[0338] In one embodiment, the antenna 200 includes a fifth radiator 280. The first end (the end close to the fourth position 204) of the fifth radiator 280 is a ground end, 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 used 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 by the line DM mode, the fifth radiator 280 may be excited to generate the fifth 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 fifth radiator 280 are in the same direction, so that the path of the current generated by the first radiator 210 can be extended, and an effect similar to current array can be obtained, which can further improve 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 resonance point frequency of the parasitic resonance generated by the fifth radiator 280, so that the fifth radiator 280 generates the fifth parasitic resonance and the sixth parasitic resonance. Fig. 9 , Fig.17 , Fig.23 , Fig.24 In the antenna structure 200 shown, the first radiator 210 is used to generate a first resonance and a second resonance), and the fourth radiator 270 generates a sixth parasitic resonance. At the resonance 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, so that the path of the current generated by the first radiator 210 can be extended, and an effect similar to a current array can be obtained, which can 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, thereby obtaining an effect similar to current arraying and improving 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: D4≤H4×30%. In one embodiment, D4≤H4×10%. In one embodiment, D4 is less than or equal to 3 mm.

[0347] Fig.39 It 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, when the electronic device 10 performs satellite communication, the first radiator can generate the first resonance and the second resonance (or the Fig.29 or Fig.30 The first radiator, the second radiator or the third radiator shown generates 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] like Fig.39 As shown, the conductor portion of the frame between the ground point 215 and the first position 202 can be used as a radiator 301. The radiator 301 and the feeding circuit 311 form a first antenna. In one embodiment, the feeding circuit 311 can be the first feeding circuit 221 in the above embodiment. In one embodiment, the tuning circuit 281 can be used to adjust the resonance point frequency of the resonance generated by the first antenna. In one embodiment, the tuning circuit 281 can be the first grounding circuit 231 or the third grounding circuit 233 in the above embodiment, and the first grounding circuit 231 or the third grounding circuit 233 in the above embodiment can be used to switch the electronic components electrically connected between the radiator 301 and the floor 300 to adjust the resonance point frequency of the resonance generated by the first antenna.

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

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

[0353] In one embodiment, the conductor portion of the frame between the second position 202 and the fourth position 204 can be used 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 resonance point frequency of the resonance generated by the fourth antenna.

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

[0355] It should be understood that one end of the radiator 301, radiator 302, radiator 303, radiator 304 and radiator 305 described in the embodiment of the present application is a ground end and the other end is an open end, and the first antenna, the second antenna, the third antenna, the fourth antenna and the fifth antenna can all work in a quarter-wavelength mode. In the quarter-wavelength mode, the current and the electric field are in the same direction on the radiator, and the current is larger near the ground end, and the electric field is larger 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, the 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 in the above embodiment, only the allocation of the working frequency bands of some antennas is shown. In actual production or design, the working frequency bands of the above antennas can also be adjusted. In one embodiment, the working frequency band of the third antenna may include at least part of the low band (LB), for example, B5, B8 and B28 in LTE.

[0362] In one embodiment, grounding can be achieved at the grounding point 215 by a first grounding member 321 (eg, a metal spring). Fig.40 The width of the connection between the first grounding piece 331 and 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 to the floor 300 through 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 by a second grounding member 322 (eg, a metal spring) at the third position 203. 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 third grounding member 333 connected to 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 is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope 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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