WO2022213611A1

WO2022213611A1 - Antenna assembly, antenna apparatus, and radio frequency control method

Info

Publication number: WO2022213611A1
Application number: PCT/CN2021/131361
Authority: WO
Inventors: 曾庆棉
Original assignee: 深圳市广和通无线股份有限公司
Priority date: 2021-04-06
Filing date: 2021-11-18
Publication date: 2022-10-13
Also published as: CN113193336A

Abstract

The present invention relates to an antenna assembly, an antenna apparatus, and a radio frequency control method. The antenna assembly comprises an antenna radiator and a switching switch. The antenna radiator is provided with a grounding point and at least two feed points, the grounding point is connected to the ground, and the lengths of antenna arms between the grounding point and the different feed points are different. The switching switch is arranged between a feed source and the feed points, and a feed path between a conduction feed source and any feed point can be selected by using the switching switch.

Description

Antenna assembly, antenna device and radio frequency control method

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese application filed on April 06, 2021 and entitled "Antenna Assembly and Radio Frequency Control Method" with application number 2021103659203, the disclosure of which is fully incorporated into this application by reference.

technical field

The present invention relates to the technical field of antenna communication, in particular to an antenna assembly, an antenna device and a radio frequency control method.

Background technique

With the development of science and technology, as a hot spot in the smart terminal mobile phone industry, the full screen has greatly improved the appearance design of smart terminal mobile phones, but the full screen also brings challenges to the design of mobile phone antennas. The design of the full screen means that the space at the top and bottom of the mobile phone is reduced, and the space for accommodating the antenna of the mobile phone will be affected.

SUMMARY OF THE INVENTION

The present application provides an antenna assembly, an antenna device and a radio frequency control method.

A first aspect of the present application relates to an antenna assembly comprising:

An antenna radiator, the antenna radiator is provided with a ground point and at least two feed points, wherein the ground point is connected to the ground, and the antenna arm lengths between the ground point and different feed points are different;

A switch is arranged between the feed source and the feed point, and the switch switch is used to select conduction or non-conduction of the feed path between the feed source and each of the feed points;

Wherein, the antenna radiator is used to excite radio frequency signals of different frequency bands under the excitation of the feed current when the different feed paths are turned on.

A second aspect of the present application relates to a radio frequency control method, which is applied to the antenna assembly of the above embodiment, and the method includes:

Receive power feed instructions;

The switch is controlled according to the radio frequency conduction signal to selectively turn on or off the feed path between the feed source and each of the feed points.

A third aspect of the present application relates to an antenna device comprising a feed for outputting a feeding current and an antenna assembly according to the above-described embodiments.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the present application will become apparent from the description, drawings and claims.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the traditional technology, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the traditional technology. Obviously, the drawings in the following description are only the For some embodiments of the application, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of an antenna assembly according to an embodiment;

FIG. 2 is a schematic structural diagram of an antenna assembly according to another embodiment;

3 is a schematic structural diagram of an antenna assembly according to another embodiment;

4 is a schematic structural diagram of an antenna device according to an embodiment;

FIG. 5 is a structural block diagram of an antenna apparatus according to another embodiment.

Description of reference numbers:

Feeding point: S1, S2. Ground point: D; Receiving module: 105; Feed: 103; Switch: 102; Antenna radiator: 101; Tuning circuit: 104; Tuning switch: 1041; First tuning unit: 1042; Second tuning unit: 1043; The third tuning unit: 1044; the fourth tuning unit: 1045; the control module: 106

Detailed ways

In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related drawings. Embodiments of the present application are presented in the accompanying drawings. However, the application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are for the purpose of describing specific embodiments only, and are not intended to limit the application.

It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of this application. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

It can be understood that the "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between them.

As used herein, the singular forms "a," "an," and "the/the" can include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the terms "comprising/comprising" or "having" etc. designate the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not preclude the presence or addition of one or more Possibilities of other features, integers, steps, operations, components, parts or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.

At present, in order to adapt to a small antenna space, the mobile phone antenna can reduce the requirements for the antenna routing area and antenna clearance height by reducing the number of antennas. However, the reduction of the number of antennas will lead to narrower antenna bandwidth, which cannot meet the communication requirements. Therefore, it is necessary to provide an antenna assembly and a radio frequency control method with a small footprint.

The antenna assembly of the present application includes an antenna radiator 101 and a switch 102. The antenna radiator 101 is provided with a ground point and at least two feed points S1 and S2, wherein the ground point D can be connected to the ground, and the ground point is connected to different feed points The antenna arm lengths differ between the points; a toggle switch 102 is placed between the feed and the feed point. Exemplarily, the switch specifically includes a first end and at least two second ends, the first end is connected to the feed source 103 , and each second end is respectively connected to the at least two feed points in a one-to-one correspondence. The switch 102 is used to select the conduction or non-conduction of the feeding path between the feed source 103 and each feeding point; the antenna radiator 101 is used to switch the feeding current when different feeding paths are turned on. RF signals in different frequency bands are excited under the excitation.

Taking the number of feed points as two and the switch 102 having two second ends as an example, as shown in FIG. 1 , the two feed points are S1 and S2 respectively, and on the same antenna radiator 101 , the ground point is D , the feeding points S1 and S2 and the grounding point D divide the antenna radiator 101 into two antenna arms, wherein the length of the antenna arm between the feeding point S1 and the grounding point D is L1, and the feeding point S2 and the grounding point D The length of the antenna arm between them is L2, and L1 and L2 are the distances between the feeding points S1 and S2 and the ground respectively, and L1 and L2 are not equal. The first end of the switch 102 is connected to the feed source 103, the two second ends are respectively connected to the two feed points in a one-to-one correspondence, and one of the two feed points is selected to be connected to the feed source. feed path between 103. Specifically, when the switch 102 turns on the feed path corresponding to the feed point S1, the antenna arm with the length L1 in the antenna radiator 101 is connected to the loop, and under the excitation of the feed current output by the feed source 103, The antenna arm of length L1 excites the radio frequency signal of the first frequency band; when the switch 102 turns on the feed path corresponding to the feed point S2, the antenna arm of length L2 is connected to the loop, and the output signal of the feed source 103 Under the excitation of the feed current, the antenna arm of length L2 excites the radio frequency signal of the second frequency band. Because the length of the antenna arm is different, the frequency band of the excited radio frequency signal is also different. One of the feed points in S1 and S2 is connected to selectively access the antenna arm with the length L1 or L2, so as to excite the radio frequency signal of the first frequency band or the radio frequency signal of the second frequency band.

Wherein, FIG. 1 only schematically shows the case where the number of feeding points is two and the second end of the switch 102 is also two, but the present invention is not limited to this. For example, the antenna radiator 101 may be provided with more feeding points, and correspondingly, the switch 102 also has more second terminals.

Optionally, multiple toggle switches may be provided. In this case, the switch may have a first terminal and a second terminal, which are respectively connected to the feed source 103 and the feeding point, and the switch and the feeding point correspond one-to-one.

The antenna assembly of the embodiment of the present invention includes an antenna radiator 101 and a switch 102, wherein the antenna radiator 101 is provided with a ground point and at least two feed points, the ground point D is connected to the ground, and the ground point is connected to different feed points The lengths of the antenna arms are different, the switch 102 includes a first end and at least two second ends, the first end is connected to the feed 103, and each second end is connected to at least two feed points in a one-to-one correspondence. The switch 102 can choose to conduct the feed path between the feed source 103 and any feed point. Since the lengths of the antenna arms corresponding to different feed paths are different, the antenna radiator 101 is conducted in different feed paths. When it is on, RF signals of different frequency bands are excited under the excitation of the feed current. Since only one antenna radiator 101 is needed, and the antenna radiator 101 can realize the signal output of various frequency bands, compared with setting up multiple antennas to The output of signals of different frequency bands is realized, and the present invention occupies less space.

FIG. 2 is a schematic structural diagram of an antenna assembly according to another embodiment. As shown in FIG. 2 , the antenna assembly further includes a tuning circuit 104. Two ends of the tuning circuit 104 are respectively connected to the ground point D and the ground for adjusting the input impedance.

Among them, adjusting the input impedance is to adjust the radiation frequency band of the antenna component to match the target frequency band. It can be understood that a feeder is connected between the feed source 103 and the antenna radiator 101, and the ratio of the input terminal voltage of the antenna radiator 101 to the feed current is called the input impedance. When the input impedance is adjusted, the radiation frequency band of the antenna component also changes accordingly. , the input impedance can be adjusted under the condition of the known target frequency band, so that the radiation frequency of the antenna component matches the target frequency band.

In this embodiment of the present invention, the tuning circuit 104 is connected between the ground point D and the ground, and the antenna radiator 101 excites the radio frequency signal while cooperating with the tuning circuit 104 to adjust the input impedance in the feed path, so that the radiation of the antenna component is adjusted. The frequency band matches the target frequency band.

In one embodiment, the tuning circuit 104 may include a tuning switch 1041 and a plurality of tuning units, which may be sub-circuits in the tuning circuit 104 . Among them, the tuning switch 1041 is arranged between the tuning unit and the ground. Exemplarily, the tuning unit includes a first end and a plurality of second ends, and the first end of the tuning switch 1041 is connected to the ground point D; the plurality of tuning units respectively have different impedances, and each tuning unit includes a first end and a second end respectively. Two ends, the first ends of each tuning unit are respectively connected to the tuning switch 1041, specifically, the second ends of the tuning switches are respectively connected to the first ends of each tuning unit, and the second ends of each tuning unit are respectively connected to the ground ; The tuning switch 1041 is used to select the conduction or non-conduction of the resonance path between the conduction ground point D and each tuning unit.

It can be understood that, in this embodiment, a tuning switch 1041 and a plurality of tuning units are set in the feeding loop. By connecting the tuning switch 1041 to different tuning units, the input impedance can be adjusted accordingly, so as to match the target frequency band and expand the frequency band radiation range of the antenna. .

Specifically, as shown in FIG. 3 , taking the number of tuning units as 4 and the tuning switch 1041 having 4 second ends as an example, it includes a first tuning unit 1042 , a second tuning unit 1043 , a third tuning unit 1044 and a third tuning unit 1044 respectively. Four tuning units 1045, each tuning unit has different impedance, when the switch 102 selects to conduct the feed path between the feed source 103 and one of the feed points, the tuning switch 1041 can select to conduct the ground point and one of the tuning points The resonant channel between the units is connected, so that the tuning unit is connected to the feed channel, and finally the radiation frequency band of the antenna is matched with the target frequency band. In one embodiment, each tuning unit may include at least one of capacitance, resistance and inductance.

It can be understood that the frequency band of the radio frequency signal to be resonated by the antenna radiator 101 is set as the target frequency band, and when one of the feeding points is connected according to the feeding command, when the target frequency band of the RF signal is known, according to the target command One of the tuning units can be turned on through the tuning switch 1041 to achieve matching with the target frequency band, so as to resonate a radio frequency signal of a specific frequency band.

In one embodiment, the tuning switch 1041 may be a single-pole, multi-throw switch, and the number of the second terminals may be the same as the number of tuning units.

3 only schematically shows the case where the number of tuning units is four and the second end of the tuning switch 1041 is also four, but the present invention is not limited to this.

In another embodiment, the tuning circuit 104 may have multiple tuning switches, and the multiple tuning switches respectively control whether the multiple tuning units are connected to the ground point and conduct. Optionally, one or more of the tuning units can be turned on through a tuning switch, so as to adjust the frequency band more flexibly.

In one embodiment, the number of feed points is two, the switch 102 is a single-pole double-throw switch, and a first antenna arm and a second antenna arm are formed between the two feed points and the ground point, respectively. The switch 102 uses The first antenna arm or the second antenna arm is selected to excite the radio frequency signal, wherein the first antenna arm excites the medium and high frequency radio frequency signal under the excitation of the feed current, and the second antenna arm is excited under the excitation of the feed current. low frequency radio frequency signal.

Please refer to FIG. 1 , a first antenna arm and a second antenna arm are respectively formed between the feed points S1 and S2 and the ground point, wherein the corresponding antenna arm length is L1 and the corresponding antenna arm length is L2 is the second antenna arm, the length L2 of the second antenna arm is greater than the length L1 of the first antenna arm, and the first antenna arm can excite medium and high frequency radio frequency signals under the excitation of the feed current, and the second antenna arm is in Under the excitation of the feed current, a low-frequency radio frequency signal can be excited.

It can be understood that the main feed of the antenna is divided into two channels by the feed S1 and S2, one is low frequency and the other is medium and high frequency. According to the theory of half-wave oscillator antenna, the antenna radiation is the best when the length of the antenna arm is a quarter wavelength, so The low frequency antenna needs to be long, and the high frequency antenna needs to be short. By setting a single-pole double-throw switch to switch, on the one hand, the mid-high frequency signal can be fed to the shorter antenna arm, thereby increasing the resonance bandwidth of the mid-high frequency signal, and on the other hand, the low-frequency signal can be fed to the longer antenna arm, thus The bandwidth of the low-frequency signal resonance is increased, and the coverage of multiple frequency bands is finally realized, and the radiation efficiency of the antenna is improved.

In one embodiment, the antenna assembly may further include a circuit board, wherein the antenna radiator 101 is disposed on the circuit board and is connected to the ground through the traces on the circuit board.

The circuit board may be a flexible circuit board (FPCB), which can be embedded in a terminal such as a mobile phone, occupies a small space, and can fix various components and realize circuit connection between the components.

In one embodiment, the tuning circuit 104 may be disposed on the circuit board and connected to the ground point D and the ground respectively through the traces on the circuit board.

Specifically, when the tuning circuit 104 includes the tuning switch 1041 and a plurality of tuning units, the tuning switch 1041 and the tuning units are fixedly arranged on the circuit board, and the line connection between the elements is realized through the wiring on the circuit board, that is, The stability of the overall structure is realized, the wiring area is reduced, and the space of the mobile phone is saved.

An embodiment of the present invention further provides a radio frequency control method, which is applied to the antenna assembly described in any of the foregoing embodiments, and the method includes steps S110 to S120.

Step S110, receiving a power feeding instruction.

The feeding instruction may be an instruction issued by the user to resonate a low-frequency signal or a high-frequency signal.

Step S120 , controlling the switch to select whether the feed path between the feed source and each of the feed points is turned on or off according to the feed command.

It can be understood that, when the feeding point includes the first feeding point or the second feeding point, the feeding current is selectively led to the first feeding point or the second feeding point through the SPDT switch. Based on the feeding command issued by the user, select a feeding path between the feeding source and one of the feeding points. When the low-frequency signal needs to be resonated, the feeding command can be high level. After receiving the feeding command When the level is high, the SPDT switch can be controlled to switch to contact with the feeding point S2, so as to feed the feeding current to the longer antenna arm, and resonate low-frequency standing waves; The electrical command can be low level. When the low level of the feeding command is received, the SPDT switch can be controlled to switch to contact with the feeding point S1, so as to feed the feeding current to the short antenna arm and resonate to a medium-high frequency standing waves.

In one embodiment, when a tuning switch and a plurality of tuning units are included, the radio frequency control method further includes receiving a target command, and then controlling the tuning switch to select whether the resonant path between the ground point and the tuning unit is turned on or off according to the target command Pass.

It can be understood that the frequency band of the radio frequency signal to be resonated by the antenna radiator 101 is set as the target frequency band, and the target command is used to indicate the target frequency band. When one of the feeding points is connected according to the feeding command, the tuning switch is controlled according to the target command. 1041 turns on one of the tuning units to achieve matching with the target frequency band, so as to resonate the radio frequency signal of a specific frequency band.

An embodiment of the present invention further provides an antenna device. As shown in FIG. 4 , the antenna device includes a feed 103 and the antenna assembly described in any of the foregoing embodiments. The feed source 103 is used for outputting the feeding current.

In one embodiment, the feed 103 may comprise a radio frequency transceiver.

FIG. 5 is a structural block diagram of an antenna device of an embodiment. Compared with the antenna assembly of the embodiment of FIG. 1 , the antenna device of this embodiment further includes a receiving module 105 and a control module 106 , wherein the receiving module 105 is used for receiving a feeding instruction The control module 106 is respectively connected with the receiving module 105 and the switch 102, and is used to control the switch 102 according to the feeding instruction to select the conduction or non-conduction of the feeding path between the feed source and each feeding point.

Specifically, when the feeding point includes the first feeding point or the second feeding point, the feeding current is selectively led to the first feeding point or the second feeding point through the SPDT switch. The receiving module 105 can accept the feeding command issued by the user, and transmit it to the control module 106. The control module 106 is controlled by the software layer. When the low-frequency signal needs to be resonated, the feeding command can be a high level. It is transmitted to the control module 106, and the single-pole double-throw switch is controlled by the control module 106 to switch to contact with the feed point S2, so as to feed the feed current to the longer antenna arm, and resonate low-frequency standing waves; Signal, the feeding command can be low level, after being received by the receiving module 105 and transmitted to the control module 106, the control module 106 controls the SPDT switch to switch to contact with the feeding point S1, so as to feed the feeding current to the higher The short antenna arm resonates with medium and high frequency standing waves.

In one embodiment, the receiving module is further configured to receive a target instruction, and the control module is further connected to the tuning circuit 104 for controlling and controlling the tuning circuit 104 to adjust the input impedance according to the target instruction. The tuning circuit 104 in the embodiment of the present invention may further include the tuning switch 1041 in the embodiment of FIG. 3 and multiple tuning units, wherein the multiple tuning units respectively have different impedances, and the control circuit is connected to the tuning switch for controlling according to the target instruction The switch 1041 is tuned to select conduction or non-conduction of the resonant path between the ground point and each tuning cell.

Specifically, as shown in FIG. 3 , taking the number of tuning units as 4 and the tuning switch 1041 having 4 second ends as an example, it includes a first tuning unit 1042 , a second tuning unit 1043 , a third tuning unit 1044 and a third tuning unit 1044 respectively. Four tuning units 1045, each tuning unit has different impedance, and the tuning switch 1041 is a single-pole multi-throw switch. When the switch 102 selects to conduct the feed path between the feed source 103 and one of the feeding points, in order to achieve matching with the target frequency band, the tuning switch 1041 can select to conduct the resonance between the ground point and one of the tuning units channel, so that the tuning unit is connected to the feeding channel, and finally the adjustment of the radiation frequency band is realized by changing the frequency of the feeding current. In one embodiment, each tuning unit may include at least one of capacitance, resistance and inductance.

It can be understood that the frequency band of the radio frequency signal to be resonated by the antenna radiator 101 is set as the target frequency band, and the target command is used to indicate the target frequency band. When one of the feeding points is turned on according to the feeding command, the tuning switch 1041 is controlled according to the target command. One of the tuning units is turned on to achieve matching with the target frequency band, so that the radio frequency signal of a specific frequency band is resonated. Wherein, the tuning switch 1041 can be a single-pole, multi-throw switch, and the number of its second ends can be the same as the number of tuning units.

In some embodiments, the receiving module and the control module may be in separate devices or integrated in one device. For example, the functions of the receiving module and the control module are implemented by the control device. The control device may include a memory and a processor, the memory stores a computer program, and the processor implements the functions of the receiving module and/or the control module when executing the computer program.

In the description of this specification, reference to the description of the terms "some embodiments," "other embodiments," "ideal embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in the present specification. at least one embodiment or example of the invention. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

An antenna assembly comprising:

an antenna radiator, the antenna radiator is provided with a ground point and at least two feed points, wherein the ground point is connected to the ground, and the antenna arm lengths between the ground point and different feed points are different;

A switch is arranged between the feed source and the feed point, and the switch switch is used to select conduction or non-conduction of the feed path between the feed source and each of the feed points;

Wherein, the antenna radiator is used to excite radio frequency signals of different frequency bands under the excitation of the feed current when the different feed paths are turned on.
The antenna assembly of claim 1, wherein the switch includes a first end and at least two of the second ends, the first end of the switch is connected to the feed, and each of the first ends of the switch is connected to the feed. The two ends are respectively connected with at least two of the feeding points in a one-to-one correspondence.
The antenna assembly of claim 2, further comprising:

A tuning circuit, two ends of the resonant circuit are respectively connected to the ground point and the ground for adjusting the input impedance.
The antenna assembly of claim 3, wherein the tuning circuit includes a tuning switch and a plurality of tuning elements;

Wherein the tuning switch is arranged between the tuning unit and the ground, and is used to select whether the resonant path between the ground point and each of the tuning units is turned on or off;

The plurality of tuning units respectively have different impedances, each of the tuning units respectively includes a first end and a second end, the first end of each of the tuning units is respectively connected to the tuning switch, and the The second ends are respectively connected with the ground.
5. The antenna assembly of claim 4, wherein the tuning switch includes a first end and a plurality of second ends, the first end of the tuning switch is connected to the ground point, and the plurality of first ends of the tuning switch The two ends are respectively connected with the first end of each tuning unit.
The antenna assembly of claim 4, wherein each of the tuning units includes at least one of a capacitance, a resistance, and an inductance.
The antenna assembly according to claim 2, wherein the number of the feeding points is two, the switch is a single-pole double-throw switch, and a second feeding point is formed between the two feeding points and the grounding point, respectively. an antenna arm and a second antenna arm, the switch is used to select the first antenna arm or the second antenna arm to excite the radio frequency signal, wherein the first antenna arm is excited by the feed current The radio frequency signal of medium and high frequency is excited, and the second antenna arm is excited to the radio frequency signal of low frequency under the excitation of the feeding current.
8. The antenna assembly of claim 7, wherein the length of the second antenna arm is greater than the length of the first antenna arm.
The antenna assembly of claim 3, further comprising:

A circuit board, the antenna radiator is arranged on the circuit board, and is connected to the ground through the traces on the circuit board.
The antenna assembly according to claim 9, wherein the tuning circuit is provided on the circuit board, and is connected to the ground point and the ground respectively through traces on the circuit board.
The antenna assembly according to claim 9 or 10, wherein the circuit board is a flexible circuit board.
A radio frequency control method, applied to the antenna assembly according to any one of claims 1 to 11, the method comprising:

Receive power feed instructions;

The switch is controlled according to the feeding command to select conduction or non-conduction of the feeding path between the feeding source and each of the feeding points.
The radio frequency control method according to claim 12, wherein, when the antenna assembly includes a tuning switch and a plurality of tuning units, the method further comprises:

receive target instructions;

The tuning switch is controlled to select conduction or non-conduction of the resonance path between the ground point and each of the tuning units according to the target instruction.
An antenna device comprising a feed for outputting a feeding current and an antenna assembly according to any one of claims 1-11.
The antenna device of claim 14, further comprising:

The receiving module is used to receive the feeding instruction;

The control module is configured to control the switch according to the feeding command to select conduction or non-conduction of the feeding path between the feeding source and each of the feeding points.
The antenna device of claim 15, wherein when the antenna assembly includes a tuning switch and a plurality of tuning units:

The receiving module is further configured to receive target instructions;

The control module is further configured to control the tuning switch according to the target instruction to select conduction or non-conduction of the resonance path between the ground point and each of the tuning units.