Antenna and electronic equipment

Abstract

The invention relates to an antenna and electronic equipment, and is applied to the technical field of communication equipment, the antenna comprises an antenna unit set, the antenna unit set comprises at least two antenna units, and the antenna units are arranged on a frame of the electronic equipment; wherein each antenna unit has a communication mode, the working frequency bands of the antenna units are different, and the communication modes of the antenna units in the antenna unit set are at least two; under the condition that a target antenna unit is in a working state, an antenna unit in a communication mode different from that of the target antenna unit is in a high-resistance state, and the target antenna unit is at least one antenna unit in an antenna unit set. The problem that in the prior art, due to the fact that an antenna is arranged outside, the antenna is prone to damage, or due to the fact that the antenna is arranged inside electronic equipment, the electronic equipment is large in size, and the electronic equipment cannot be held by hand conveniently is solved.

Description

Technical Field

[0001] The present application relates to the technical field of communication equipment, and in particular to an antenna and electronic equipment. Background Art

[0002] The low-orbit satellite communication system uses very high frequency signals as information carriers, and uses near-Earth satellites or Starlink as communication relay stations to communicate between ground devices and cover ground communication equipment. The low-orbit satellite communication system consists of low-orbit satellites, signal transmitters, and receivers. The signal receiver can be a signal terminal receiving device such as a mobile phone, tablet, or walkie-talkie. The low-orbit satellite communication system transmits signals between the transmitter and the receiver to achieve navigation, emergency communication, or applications when the ground-to-ground communication signal is poor.

[0003] As terminal electronic devices are gradually developing towards being thin, light, beautiful and compact, low-orbit satellite communications usually use very high frequency signals with low frequencies and large electrical dimensions of antennas. In related technologies, when installing antennas on devices, the antennas are often set outside, making them easy to damage, or they are set inside electronic devices, which makes the electronic devices larger and not convenient for holding. Summary of the invention

[0004] The present application provides an antenna and an electronic device to solve the problem in the prior art that the antenna is set outside, causing the antenna to be easily damaged, or is set inside the electronic device, but the electronic device will be larger in size and not conducive to handheld electronic devices.

[0005] In a first aspect, an embodiment of the present application provides an antenna, applied to an electronic device, including:

[0006] An antenna unit set, wherein the antenna unit set includes at least two antenna units, and the antenna units are arranged on a frame of the electronic device;

[0007] Each of the antenna units has a communication mode, the operating frequency bands of the antenna units are different, and the communication modes of the antenna units in the antenna unit set include at least two;

[0008] When the target antenna unit is in a working state, an antenna unit having a different communication mode from the target antenna unit is in a high impedance state, and the target antenna unit is at least one antenna unit in the antenna unit set.

[0009] Optionally, each of the antenna units includes an antenna branch and a feeding branch connected to the antenna branch;

[0010] The feeding branch is used to feed the antenna branch when the antenna unit is in a working state;

[0011] There is a gap between the antenna branches of the adjacent antenna units with different communication modes.

[0012] Optionally, the antenna unit further includes: a switching network circuit connected to the antenna branch; the switching network circuit is used to select the antenna unit in a working state.

[0013] Optionally, the switching network circuit includes a switch, and when the switch is closed and the antenna branch is fed, the antenna unit connected to the closed switch is in an operating state.

[0014] Optionally, the antenna unit further includes: an antenna matching network circuit connected to the feeding branch, wherein the antenna matching network circuit is used to adjust impedance when the antenna unit is in working state.

[0015] Optionally, the communication mode includes a first communication mode and a second communication mode;

[0016] When the first antenna branch is in working state, the second antenna branch is multiplexed through the gap;

[0017] The first antenna branch is an antenna branch of an antenna unit of the first communication mode, and the second antenna branch is an antenna branch of an antenna unit of the second communication mode.

[0018] Optionally, the number of the second antenna branches is more than two, and the more than two second antenna branches are adjacent to each other.

[0019] Optionally, the antenna branches are integrated with the frame.

[0020] Optionally, the length of the antenna branch ranges from 0.1 to 0.25 wavelengths, and the length of the feeding branch ranges from 0.01 to 0.25 wavelengths; the length of the border ranges from 0.25 to 20 wavelengths, and the width of the border ranges from 0.01 to 10 wavelengths.

[0021] In a second aspect, an embodiment of the present application provides an electronic device, comprising: an electronic device body and the antenna as described in the first aspect, wherein the electronic device body comprises a frame;

[0022] The antenna is arranged on the frame.

[0023] The antenna provided in the embodiment of the present application includes an antenna unit set, wherein the antenna unit set includes at least two antenna units, and the antenna unit is arranged on the frame of the electronic device; wherein each of the antenna units has a communication mode, and the working frequency bands of the antenna units are different, and the communication modes of the antenna units in the antenna unit set include at least two; when the target antenna unit is in a working state, the antenna unit with a different communication mode from the target antenna unit is in a high impedance state, and the target antenna unit is at least one antenna unit in the antenna unit set. In this way, the antenna unit is arranged on the frame of the electronic device, so that the antenna can be arranged in the electronic device using the frame, which will not occupy more space of the electronic device, and will not cause the antenna to be exposed, thereby improving the service life of the antenna. In addition, by setting a plurality of antenna units, and the antenna units have a plurality of communication modes, and the working frequencies of the antenna units are different, the electronic device can meet a variety of communication scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 A schematic diagram of the structure of an antenna provided in one embodiment of the present application;

[0027] Figure 2 A schematic diagram of the structure of an antenna provided in another embodiment of the present application;

[0028] Figure 3 A schematic diagram of the structure of an antenna provided in yet another embodiment of the present application;

[0029] Figure 4 The S-parameter simulation results of the cellular communication antenna provided in one embodiment of the present application.

[0030] Figure 5 The S-parameter simulation results of the low-orbit satellite communication frequency band antenna provided in one embodiment of the present application.

[0031] Reference numerals:

[0032] Antenna unit set-1, antenna unit-11, antenna branch-111, feed branch-112, switching network circuit-113, low-frequency antenna branch-21, low-frequency feed branch-22, first switch-23, medium-high frequency antenna branch-31, medium-high frequency feed branch-32, second switch-33, satellite antenna branch-41, satellite feed branch-42, frame-5, first frame-51, second frame-52, third frame-53, fourth frame-54, first grounding point-7, second grounding point-8. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] In one embodiment of the present application, an antenna is provided, such as Figure 1 As shown, the antenna comprises: an antenna unit set 1, wherein the antenna unit set 1 comprises at least two antenna units 11, and the antenna units 11 are arranged on a frame 5 of the electronic device;

[0035] Each of the antenna units 11 has a communication mode, and the working frequency bands of the antenna units 11 are different. The communication modes of the antenna units 11 in the antenna unit 11 set 1 include at least two;

[0036] When the target antenna unit 11 is in working state, the antenna unit 11 that communicates differently from the target antenna unit 11 is in high impedance state, and the target antenna unit 11 is at least one antenna unit 11 in the antenna unit 11 set 1 .

[0037] In some embodiments, the antenna may be an antenna on an electronic device, and the electronic device communicates via the antenna. The antenna unit 11 is disposed on the frame 5 of the electronic device, so that the antenna can be disposed in the electronic device using the frame 5, which does not occupy much space of the electronic device and does not cause the antenna to be exposed, thereby increasing the service life of the antenna. In addition, by providing multiple antenna units 11, and the antenna units 11 have multiple communication modes, and the operating frequencies of the antenna units 11 are different, the electronic device can meet a variety of communication scenarios.

[0038] The high impedance state means that an antenna unit 11 has a higher impedance relative to the target antenna unit 11. In this embodiment, the high impedance state of the antenna unit 11 having a different communication mode from the target antenna unit 11 may be an open circuit state or an inoperative state.

[0039] The antenna in the present application is integrated on the frame 5 of the electronic device, reusing the original antenna radiator without occupying new design space, and therefore will not affect other communication frequency bands.

[0040] The frame 5 of the electronic device may be a metal frame or a non-metal frame, or part of the frame may be made of metal and part of the frame may be made of non-metal material.

[0041] Among them, see Figure 2 Each of the antenna units 11 includes an antenna branch 111 and a feeding branch 112 connected to the antenna branch; the feeding branch is used to feed the antenna branch when the antenna unit 11 is in a working state, and there is a gap between the antenna branches of the antenna units 11 with different communication modes and adjacent to each other.

[0042] The antenna feed branches can be in the form of coaxial lines, microstrip lines, strip lines and other transmission lines. Different antenna branches are excited through different feeding ports to cover different frequency bands. The antenna branches can be inverted-F antennas (IFA), loop antennas, slot antennas and other antennas of any structure, used to cover cellular communications.

[0043] The antenna branch may be integrated with the frame 5, or the antenna branch may be arranged at any position of the frame 5. The antenna unit 11 is integrated with the frame 5, the original antenna radiator is reused, and no new design space is occupied, so other communication frequency bands will not be affected.

[0044] The form of the antenna branch is not limited to the metal frame antenna, and can also be made into a flexible printed circuit (Flexible Printed Circuit, FPC for short) or an antenna of other forms or processes.

[0045] By providing a gap between antenna branches of adjacent antenna units 11 having different communication modes, the two adjacent antennas can be coupled via the gap, thereby reducing the length of the entire antenna and miniaturizing the antenna.

[0046] In an optional embodiment, the antenna unit 11 further includes: a switching network circuit 113 connected to the antenna branch; the switching network circuit is used to select the antenna unit 11 in a working state.

[0047] In some embodiments, the switching of the antenna working mode is usually achieved by controlling the on and off of a switching network circuit. The switching network circuit can be placed in an antenna branch to switch between antenna units 11 of different communication modes.

[0048] Exemplarily, the antenna includes an antenna unit A and an antenna unit B. When antenna unit A is working, its switching network circuit A is in an on state, and the switching network circuit B of antenna unit B is in an off state; when the working mode is switched, the switching network circuit A is switched to an off state, and the switching network circuit B is switched to an on state, thereby realizing the switching of the working mode.

[0049] In one embodiment, when two antenna units use the same communication mode, there is no gap between the antenna branches of the two antennas, so that the dispersed radiators of the antennas can be connected through a switching network circuit to form a longer radiator.

[0050] For example, the antenna includes an antenna unit C and an antenna unit D, both of which use the same communication mode. When both are in working state, the antenna branches of antenna unit C and antenna unit D work together, so that the two radiators work together to become a longer radiator, thereby improving the communication effect.

[0051] In an optional embodiment, the switching network circuit includes a switch, and the switch is correspondingly connected to the antenna unit 11. When the switch is closed and the antenna branch is fed, the antenna unit 11 connected to the closed switch is in a working state.

[0052] The switch may be a virtual switch or a physical switch (eg, a single-pole single-throw switch).

[0053] After the switch is closed, the feeding branch feeds the antenna branch, so that the antenna unit 11 is in a conducting state. After the antenna branch is fed, communication can be performed, so that the antenna branch is in a working state.

[0054] It is understandable that, when the switch is closed, the antenna branch can be grounded to enhance the antenna signal reception, transmission and anti-static interference functions.

[0055] In an optional embodiment, the antenna unit 11 further includes: an antenna matching network circuit connected to the feeding branch, and the antenna matching network circuit is used to adjust the impedance when the antenna unit 11 is in a working state.

[0056] The antenna matching circuit may present different impedance characteristics at different frequencies through inductance and capacitance, thereby achieving impedance regulation.

[0057] In some embodiments, the antenna matching network circuit may be formed on the feeding branch of the antenna by a certain form of resistor and capacitor components.

[0058] In an optional embodiment, the communication mode includes a first communication mode and a second communication mode;

[0059] When the first antenna branch is in working state, the second antenna branch is multiplexed through the gap; wherein the first antenna branch is the antenna branch of the antenna unit 11 of the first communication mode, and the second antenna branch is the antenna branch of the antenna unit 11 of the second communication mode.

[0060] In an optional embodiment, the number of the second antenna branches is more than two, and the more than two second antenna branches are adjacent to each other.

[0061] The communication mode may include, but is not limited to, cellular communication and satellite communication. The antenna branches of the cellular communication may include low-frequency antenna branches and medium- and high-frequency antenna branches.

[0062] For example, taking the case where the first antenna branch is an antenna branch of the antenna unit 11 for satellite communication and the second antenna branch is an antenna branch of the antenna unit 11 for cellular communication, when the first antenna branch is in working condition, the feeding branch of the second antenna branch will not feed it, and a parasitic capacitance is formed between the first antenna and the second antenna through the gap between the two, thereby coupling the two and achieving the purpose of the first antenna branch reusing the second antenna branch.

[0063] Furthermore, when the number of second antenna branches is more than two and more than two second antenna branches are adjacent, since there is no gap between antenna branches of the same communication mode, a longer radiator can be formed between the second antenna branches, thereby allowing the first antenna branches to reuse multiple second antenna branches.

[0064] In an optional embodiment, the length of the antenna branch is in the range of 0.1 to 0.25 wavelengths, the length of the feed branch is in the range of 0.01 to 0.25 wavelengths, the length of the frame is in the range of 0.25 to 20 wavelengths, and the width of the frame is in the range of 0.01 to 10 wavelengths.

[0065] In a specific embodiment, see Figure 3, wherein the antenna unit set 1 includes three antenna units, namely a low-frequency antenna unit, a medium-high frequency antenna unit and a satellite antenna unit. The low-frequency antenna unit includes a low-frequency antenna branch 21, a low-frequency feed branch 22 and a first switch 23, the medium-high frequency antenna unit includes a medium-high frequency antenna branch 31, a medium-high frequency feed branch 32 and a second switch 33, and the satellite antenna unit includes a satellite antenna branch 41 and a satellite feed branch 42. The frame of the electronic device includes a first frame 51, a second frame 52, a third frame 53 and a fourth frame 54, as well as a low-frequency antenna branch 21, a medium-high frequency antenna branch 31, and a satellite antenna branch 41, and the back panel 6 is connected to the frame to form the frame of the electronic device.

[0066] It also includes a first grounding point 7 connected to the satellite antenna branch 41 and a second grounding point 8 connected to the first frame.

[0067] See also Figure 3 The cellular frequency band antenna of the antenna of the present application includes a low frequency antenna branch 21, a medium and high frequency antenna branch 31, feed branches of the two antennas, a matching network circuit and an antenna switching network circuit. Among them, the low frequency antenna branch 21 can cover the B5, B8, B20, B28 frequency bands, the medium and high frequency antenna branch 31 can cover the B1, B2, B3, B34, B38, B39, B40, B41 frequency bands, that is, the 1700MHz--2700MHz frequency band, and the satellite antenna branch 41 can cover 249MHz-251.5MHz, working in the very high frequency (VHF) frequency band.

[0068] In the internal environment of the antenna, the satellite communication antenna is composed of a low-frequency antenna branch 21, a medium-high frequency antenna branch 31, and a satellite antenna branch 41. There is a gap between the medium-high frequency antenna branch 31 and the satellite antenna branch 41, and the length of the entire antenna is reduced through gap coupling, thereby miniaturizing the antenna and radiating in the VHF band.

[0069] When the second switch 33 is in satellite communication, its impedance is equivalent to high resistance or disconnected state; when it is in cellular communication, it is in low resistance or short circuit state. When the first switch 23 is in satellite communication, its impedance is equivalent to high resistance or disconnected state; when it is in cellular communication, it is in low resistance or short circuit state. Impedance refers to the resistance to the current in the circuit. When the first switch 23 and the second switch 33 are disconnected or not grounded, it is in low resistance or short circuit state. When the first switch 23 and the second switch 33 are closed or grounded, it is in high resistance or disconnected state.

[0070] The high-resistance and low-resistance states of different communication modes can be constructed by utilizing the impedance characteristics of inductors and capacitors in different frequency bands, or by using PIN (PIN Diode) diodes, complementary metal oxide semiconductor field effect transistors (Complementary Mental Oxide Semiconductor Field Effect Transmetor, CMOS for short) tubes and micro-electromechanical systems (MEMS, Micro-Electro-Mechanical System, MEMS for short) devices for switching.

[0071] Among them, the low-frequency antenna branch 21 covering the B5, B8, B20, and B28 frequency bands can be set on the long side of the frame, and the medium- and high-frequency antenna branch 31 covering the B1, B2, B3, B34, B38, B39, B40, and B41 frequency bands can be set on the short side of the frame. The two feeding branches excite the low-frequency antenna and the medium- and high-frequency antenna respectively. It should be noted that Figure 3 The first switch 23 cannot be regarded as the common grounding point of the two antenna branches of cellular communication, but can be regarded as the grounding point of the low-frequency antenna branch 21, which is far away from the medium-high frequency antenna branch 31, and the second switch 33 is already the grounding point of the medium-high frequency. The first switch 23 is no longer needed as the grounding point of the medium-high frequency antenna in the cellular frequency band.

[0072] There is a gap between the medium and high frequency antenna branch 31 and the satellite antenna branch 41. The length of the entire antenna is shortened through gap coupling, the antenna is miniaturized, and radiation is performed in the VHF frequency band.

[0073] Among them, the antenna unit of cellular communication (including low-frequency antenna unit and medium-high frequency antenna unit) and the satellite communication antenna unit of satellite communication are both in a high-impedance isolation state with respect to each other. When the satellite communication antenna unit is in a high-impedance state with respect to its cellular communication antenna unit, the antenna works in cellular communication, and the satellite communication circuit does not work, and is used as a basic communication antenna; when the satellite communication mode is established, the satellite communication antenna starts to work, and the corresponding circuit of the cellular communication does not work, and is used for satellite communication.

[0074] Among them, the low-frequency antenna branch 21, the medium-high frequency antenna branch 31 and the satellite antenna branch 41 respectively have their own excitation ports, and the three excitation ports have different antenna matching networks. The antenna matching circuits are designed in this way, namely the low-pass matching network, the high-pass matching network, and the very high-pass matching network, which are used to match or isolate the antennas in different working states to achieve the purpose of not affecting each other when the antenna mode is switched. The principle is that inductors and capacitors present different impedance characteristics at different frequencies.

[0075] When the satellite communication antenna is in working state, the cellular communication antenna is in non-working state, and the matching network adjusts the antenna resonant frequency to operate in the satellite communication frequency band.

[0076] The antenna in the present application can switch between different working modes, such as switching from the ultra high frequency (UHF) band to other frequency bands, and can switch to the VHF band at most, and use the radiator of the antenna in other frequency bands for satellite communication antenna.

[0077] It is understandable that the switching network circuit 113 has a certain interactive relationship with the antenna matching network circuit, and the antenna matching network circuit corresponds to the low-frequency antenna unit, the medium-high frequency antenna unit and the satellite communication antenna unit. The main function of the switching network circuit 113 is to select the operation of different communication antenna units. Among them, the switching network circuit 113 can include, but is not limited to, a first switch 23 and a second switch 33.

[0078] It should be understood that when the first switch 23 and the second switch 33 are in a short circuit or low resistance state, the low frequency feed branch 22 and the medium and high frequency feed branch 32 are in working state, and the antenna works in cellular communication at this time. When the first switch 23 and the second switch 33 are in a short circuit or low resistance state, the low frequency feed branch 22 is in working state, and the antenna works in the low frequency working state in cellular communication at this time. When the second switch 33 is in a short circuit or low resistance state, the medium and high frequency feed branch 32 is in working state, and the antenna works in the medium and high frequency working state in cellular communication at this time. When the first switch 23 is disconnected or in a high resistance state, the low frequency feed branch 22 and the medium and high frequency feed branch 32 will be in a standby state, and when the second switch 33 is also disconnected or in a high resistance state, the satellite feed branch 42 starts to work and uses the antenna branches 21, 31 and 41 for communication. The cellular communication and satellite communication frequency bands of the antenna do not work at the same time, but are controlled by the states of the first switch 23 and the second switch 33. By switching the state of the network circuit, the application of the antenna is expanded to low-frequency satellite communications without adding new radiators or occupying new design space.

[0079] In one embodiment, the length of the antenna branch is between 0.1 wavelength and 0.25 wavelength, the length of the feed branch is between 0.01 wavelength and 0.25 wavelength, the width of the feed branch is between 0.001 wavelength and 0.1 wavelength, the diameter of the feed probe in the feed branch is between 0.01 wavelength and 0.25 wavelength, the frame length is between 0.25 wavelength and 20 wavelengths, the frame width is between 0.01 wavelength and 10 wavelengths, and the frame height is between 0.01 wavelength and 10 wavelengths; the spacing between the frame and the back plate is between 0 and 0.25 wavelength. The spacing between different frames and back plates can be different, and the spacing between the same frame and the back plate can also be different.

[0080] Among them, the distance between the frame and the back panel of the electronic device will affect the impedance of the antenna, and adjusting the distance can widen the bandwidth.

[0081] Figure 4 and Figure 5 is the simulation result of the antenna, where Figure 4 is the S-parameter simulation result for cellular communication antenna, Figure 5 It is the S parameter simulation result of low-orbit satellite communication antenna.

[0082] like Figure 4 As shown in the figure, the S parameter simulation results of the cellular communication antenna are as follows. The antenna has |S11| less than -6dB in the range of 700MHz-960MHz and 1700MHz-2700MHz, covering the B1, B2, B3, B5, B8, B20, B28, B34, B38, B39, B40, and B41 frequency bands, and operates in the UHF band.

[0083] like Figure 5 As shown in Figure 1, the S parameter simulation results of the antenna working in the satellite communication frequency band, the antenna |S11| is less than -6dB in the range of 249MHz-251.5MHz, and works in the very high frequency VHF band.

[0084] Based on the same concept, an electronic device is provided in an embodiment of the present application. The specific implementation of the electronic device can refer to the description of the above antenna embodiment part, and the repeated parts will not be repeated. The electronic device includes: an electronic device body and the antenna described in the above embodiment, the electronic device body includes a frame; the antenna is arranged on the frame of the electronic device.

[0085] Among them, the antenna of the present application can be applied to electronic devices that adopt one or more of the following communication technologies, including but not limited to: low-orbit satellite communication system communication technology, Beidou navigation system communication technology, Bluetooth communication system communication technology, global positioning system communication technology, wireless fidelity communication system communication technology, global mobile communication system communication technology, 6G / 5G / 4G communication technology, etc. Electronic devices can be but not limited to the following: mobile phones, tablets, computers, vehicle terminals, smart bicycles, smart watches, smart glasses, smart refrigerators, wireless routers, televisions, vehicle radars, smart home appliances and other electronic devices with communication functions.

[0086] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0087] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An antenna, characterized in that: Used in electronic equipment, including: An antenna unit set, wherein the antenna unit set includes at least two antenna units, and the antenna units are arranged on a frame of the electronic device; Each of the antenna units has a communication mode, the operating frequency bands of the antenna units are different, and the communication modes of the antenna units in the antenna unit set include at least two; When the target antenna unit is in a working state, an antenna unit having a different communication mode from the target antenna unit is in a high impedance state, and the target antenna unit is at least one antenna unit in the antenna unit set.

2. The antenna according to claim 1, characterized in that Each of the antenna units comprises an antenna branch and a feeding branch connected to the antenna branch; The feeding branch is used to feed the antenna branch when the antenna unit is in a working state; There is a gap between the antenna branches of the adjacent antenna units with different communication modes.

3. The antenna according to claim 2, characterized in that: The antenna unit also includes: a switching network circuit connected to the antenna branch; the switching network circuit is used to select the antenna unit in a working state.

4. The antenna according to claim 3, characterized in that: The switching network circuit comprises a switch. When the switch is closed and the antenna branch is fed, the antenna unit connected to the closed switch is in an operating state.

5. The antenna according to claim 2, characterized in that: The antenna unit further comprises: an antenna matching network circuit connected to the feeding branch, wherein the antenna matching network circuit is used to adjust impedance when the antenna unit is in working state.

6. The antenna according to claim 2, characterized in that: The communication mode includes a first communication mode and a second communication mode; When the first antenna branch is in working state, the second antenna branch is multiplexed through the gap; The first antenna branch is an antenna branch of an antenna unit of the first communication mode, and the second antenna branch is an antenna branch of an antenna unit of the second communication mode.

7. The antenna according to claim 6, characterized in that The number of the second antenna branches is more than two, and the more than two second antenna branches are adjacent to each other.

8. The antenna according to claim 2, characterized in that: The antenna branches are integrated with the frame.

9. The antenna according to claim 1, characterized in that: The length of the antenna branch ranges from 0.1 to 0.25 wavelengths, and the length of the feeding branch ranges from 0.01 to 0.25 wavelengths; the length of the frame ranges from 0.25 to 20 wavelengths, and the width of the frame ranges from 0.01 to 10 wavelengths.

10. An electronic device, characterized in that: include: An electronic device body and an antenna as claimed in any one of claims 1 to 9, wherein the electronic device body comprises a frame; The antenna is arranged on the frame.

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