WO2017128480A1

WO2017128480A1 - Antenna switching assembly, switching method, switching system, antenna, and mobile terminal

Info

Publication number: WO2017128480A1
Application number: PCT/CN2016/074841
Authority: WO
Inventors: 何春
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2016-01-25
Filing date: 2016-02-29
Publication date: 2017-08-03
Also published as: CN105633555B; CN105633555A

Abstract

The present invention provides an antenna switching assembly, switching method, switching system, antenna, and mobile terminal, said antenna switching assembly comprising: a three-phase transfer switch; a fixed end and a selecting end; the first terminal and second terminal of the fixed end are grounded; the third terminal of the fixed end is connected to a radio-frequency processing module; the selecting end is connected to a first feed point, second feed point, and third feed point of the main body of the antenna; any one of the first end, second end, and third end is connected to any one of the first feed point, second feed point, and third feed point by means of the three-phase transfer switch. The technical solution of the present invention allows for connecting the fixed end and the selecting end in various combinations, thus multiple sets of resonant states are obtained and broadband requirements for which single resonance would not be able to provide coverage are satisfied.

Description

Antenna switching component, switching method, switching system, antenna and mobile terminal

This application claims priority to Chinese Patent Application No. 201610046317.8, entitled "Antenna Switching Module, Switching Method, Switching System, Antenna and Mobile Terminal", which is filed on January 25, 2016. The content is incorporated herein by reference.

Technical field

The present invention relates to the field of mobile terminal technologies, and in particular, to an antenna switching component, a switching method, a switching system, an antenna, and a mobile terminal.

Background technique

In the related art, the radio frequency antenna is widely used in mobile terminals such as mobile phones. For existing switchable or frequency-modulated antennas, different resonant frequencies are obtained by changing the parameters of the matching circuit of the antenna.

However, since the antenna body does not change, when the parameters of the matching circuit change, the resonance bandwidth decreases, and the obtained resonance efficiency also changes with the tuning offset, and the farther away from the original resonance, the lower the efficiency.

Therefore, the resonance obtained by the switching or frequency-modulating matching circuit has a small variation range, and it is difficult to meet the bandwidth requirement, which seriously affects the communication experience of the user of the mobile terminal.

In summary, how to design an antenna switching scheme to realize multi-band communication requirements has become a technical problem to be solved.

Summary of the invention

The present invention is based on at least one of the above technical problems, and proposes a new antenna switching scheme, which is fixed by providing a three-phase switching switch, a plurality of terminals of a fixed end, and a plurality of feeding points of a selection end in an antenna switching component. A variety of combined connection modes of the terminal and the selection end, thereby obtaining a plurality of sets of resonance states, satisfying the bandwidth requirement that the single resonance cannot cover.

In view of this, the present invention provides an antenna switching assembly, comprising: a three-phase switching switch; a fixed end and a selection end, wherein the first terminal and the second terminal of the fixed end are grounded, and the third terminal of the fixed end is connected to An RF processing module, the selection end is connected to the first feed point and the second feed of the antenna body a point and a third feed point, wherein any one of the first end, the second end, and the third end and any one of the first feed point, the second feed point, and the third feed point are connected by a three-phase switch .

In the technical solution, by providing a three-phase switching switch, a plurality of terminals of the fixed end, and a plurality of feeding points of the selecting end in the antenna switching component, a plurality of combined connection modes of the fixed end and the selecting end are realized, thereby obtaining a plurality of sets of resonances. The state satisfies the bandwidth requirements that cannot be covered by a single resonance.

Specifically, each antenna has a central operating frequency. When the operating frequency is off-center, some electrical properties of the antenna will decrease, and the electrical performance drops to a permissible frequency range, which is the bandwidth of the antenna. Walk a line along the main antenna, the high frequency band part forms a standing wave and the main antenna high frequency standing wave fuses to widen the bandwidth, and the ground point evolves from the dipole antenna, using a limited ground plane as the other four One wavelength, which constitutes a theoretical dipole antenna, the optimum position of the so-called feed point is the position where the electromagnetic wave energy is most easily radiated as a radio wave. If the feed point is placed on the edge, the hotspot of the main board current will be more concentrated on the edge of the main board. The power between the main board and the antenna is easier to connect together. The main feed point (RF signal input point) and the ground feed point (ground signal input) Point) The relative distance on the antenna trace corresponds to the multiple frequency bands that the antenna needs to cover.

In the above technical solution, preferably, the method further includes: an impedance matching module connected between the selection end and the antenna body, wherein the impedance matching module includes a first impedance matching unit, a second impedance matching unit, and a third impedance matching unit, where The first impedance matching unit is connected between the first feed point and the antenna body, the second impedance matching unit is connected between the second feed point and the antenna body, and the third impedance matching unit is connected between the third feed point and the antenna body. .

In this technical solution, the effect of obtaining maximum power transmission is achieved by setting an impedance matching module, and the function of the impedance matching module is to reduce power consumption by impedance matching of the electromagnetic wave transmission line, thereby ensuring that the energy received by the receiving antenna can be maximized. The transfer of the limit is processed to the next stage. If the matching effect between the antenna matching circuit and the antenna is not good, the mismatch occurs, and the reflected wave is generated in the feeder. When the reflected wave reaches the transmitter, it will eventually be converted into heat, and the receiving end will also cause poor signal reception due to mismatch. Antenna performance is impaired. In addition, in the antenna transmission parameters, the standing wave ratio is a common parameter for characterizing the matching performance. The lower the standing wave ratio is, the better the matching performance is. The higher the standing wave ratio is, the worse the matching performance is.

Specifically, when the high-frequency signal is transmitted from the beginning to the terminal along the feeder, the current or voltage at each point on the line changes according to the beat of the high-frequency oscillation. This situation is like an invisible on the line. See the wave, if the impedance does not match the characteristics of the feeder, the transmitted high-frequency signal power cannot be absorbed.

According to a second aspect of the present invention, a handover method is further provided, comprising: determining a connection state of a three-phase switch of an antenna switching component according to a radio frequency signal to be transmitted.

In the technical solution, by determining the connection state of the three-phase switching switch according to the radio frequency signal, a plurality of combined connection modes of the fixed end and the selection end are realized, thereby obtaining a plurality of sets of resonance states, which satisfies the bandwidth requirement that the single resonance cannot cover.

Specifically, each antenna has a central operating frequency. When the operating frequency is off-center, some electrical properties of the antenna will decrease, and the electrical performance drops to a permissible frequency range, which is the bandwidth of the antenna. Walk a line along the main antenna, the high frequency band part forms a standing wave and the main antenna high frequency standing wave fuses to widen the bandwidth, and the ground point evolves from the dipole antenna, using a limited ground plane as the other four One wavelength, which constitutes a theoretical dipole antenna. The optimal position of the so-called feed point is the position where the electromagnetic wave energy is most easily radiated in the form of electric waves. If the feed point is placed on the edge, the hotspot of the main board current will be more concentrated on the edge of the main board. The power between the main board and the antenna is easier to connect together. The main feed point (RF signal input point) and the ground feed point (ground signal input) Point) The relative distance on the antenna trace corresponds to the multiple frequency bands that the antenna needs to cover.

In the above technical solution, the connection state of the three-phase switch of the antenna switching component is determined according to the radio frequency signal to be transmitted, and specifically includes the following states: analyzing the working frequency band of the radio frequency signal; determining the resonant frequency band to which the working frequency band belongs; The corresponding relationship between the frequency band and the preset connection mode determines the connection mode of the three-phase switch, so as to control the three-phase switch to connect the fixed end and the selection end of the antenna switching component in a preset connection manner.

In the technical solution, the antenna circuit is connected to the main feed point and the ground feed point of the access antenna circuit according to the received radio frequency signal, so that the main feed point and the ground feed point of the access antenna circuit are in an active state, so that the antenna circuit is The resonance corresponding to the control signal is generated, which satisfies the requirements of different frequency bands, so that the antenna can better receive and transmit the radio frequency signal.

In the above technical solution, before determining the connection state of the three-phase switch of the antenna switching component according to the radio frequency signal to be transmitted, the method further includes: determining three of the fixed terminals and three of the selection ends. Six preset connection modes for one-to-one connection; calculate six resonance frequency bands of the antenna switching component in six preset connection modes; store one-to-one correspondence between six resonance frequency bands and six preset connection modes.

In the technical solution, by determining the resonant frequency band corresponding to the six preset connection modes, the resonant frequency band to which the RF signal belongs can be quickly determined, thereby satisfying the bandwidth requirement that the single resonance cannot cover, and improving the efficiency of the RF signal transmission.

According to a third aspect of the present invention, a switching system is further provided, comprising: a switching unit, configured to determine a connection state of a three-phase switching switch of an antenna switching component according to a radio frequency signal to be transmitted.

In the above technical solution, preferably, the switching unit further includes: a parsing unit configured to parse the working frequency band of the radio frequency signal; and a determining unit configured to determine a resonant frequency band to which the working frequency band belongs; the determining unit is further configured to: according to the resonant frequency band and the pre- The corresponding relationship of the connection modes is determined, and the connection mode of the three-phase switch is determined to control the three-phase switch to connect the fixed end and the selection end of the antenna switching component in a preset connection manner.

In the above technical solution, preferably, the determining unit is further configured to: determine six preset connection manners that the three terminals in the fixed end are connected one by one to the three feeding points in the selection end; the switching system further includes: a computing unit Used to calculate the six resonances of the antenna switching component in six preset connection modes Frequency band; a storage unit for storing a one-to-one correspondence between six resonant frequency bands and six preset connection modes.

According to a fourth aspect of the present invention, there is also provided an antenna comprising an antenna switching component, and/or a switching system, one side of the antenna switching component being coupled to an antenna body for transmitting a radio frequency signal, the antenna switching component The other side is connected to the RF processing module, where:

The antenna switching component includes:

Three-phase switching switch;

a fixed end and a selection end, wherein the first terminal and the second terminal of the fixed end are both grounded, a third terminal of the fixed end is connected to the radio frequency processing module, and the selection end is connected to the antenna body a first feed point, a second feed point, and a third feed point, any one of the first end, the second end, and the third end, and the first feed point, the second feed One of the point and the third feed point is connected by the three-phase switch;

The switching system includes:

And a switching unit, configured to determine, according to the radio frequency signal to be transmitted, a connection state of the three-phase switching switch of the antenna switching component.

In the above technical solution, preferably, the antenna switching component further includes:

An impedance matching module is connected between the selection end and the antenna body, the impedance matching module includes a first impedance matching unit, a second impedance matching unit, and a third impedance matching unit, wherein the first impedance matching a unit is connected between the first feed point and the antenna body, the second impedance matching unit is connected between the second feed point and the antenna body, and the third impedance matching unit is connected Between the third feed point and the antenna body.

In the above technical solution, the switching unit further includes: a parsing unit, configured to parse the working frequency band of the radio frequency signal; and a determining unit, configured to determine a resonant frequency band to which the working frequency band belongs; And determining, according to a correspondence relationship between the resonant frequency band and the preset connection manner, a connection manner of the three-phase switching switch, to control the three-phase switching switch to connect the antenna switch in the preset connection manner The fixed and selected ends of the component.

In the above technical solution, preferably, the determining unit is further configured to: determine the fixed end Six preset connection modes in which three terminals are connected one by one with three of the selection terminals;

The switching system further includes: a calculating unit, configured to calculate six resonant frequency bands of the antenna switching component in the six preset connection modes; and a storage unit, configured to store the six resonant frequency bands and the six A one-to-one correspondence of preset connection methods.

According to a fifth aspect of the present invention, a mobile terminal is further provided, comprising: a memory, a processor and an antenna switching component, the antenna switching component comprising: a radio frequency processing module, an antenna body, a three-phase switching switch, a fixed end and a selection end The first terminal and the second terminal of the fixed end are both grounded, and the third terminal of the fixed end is connected to the radio frequency processing module, and the selection end is connected to the first feed point of the antenna body, a second feed point and a third feed point, any one of the first end, the second end, and the third end, and the first feed point, the second feed point, and the first Any one of the three feed points is connected by the three-phase switch;

The program stores a set of program codes, and the processor is configured to call program code stored in the memory to perform the following operations:

Determining a connection state of the three-phase switch according to a radio frequency signal to be transmitted.

In the above technical solution, the processor determines the connection state of the three-phase switch according to the radio frequency signal to be transmitted, and specifically includes:

Determining a working frequency band of the radio frequency signal; determining a resonant frequency band to which the working frequency band belongs; determining a connection mode of the three-phase switching switch according to a correspondence between the resonant frequency band and the preset connection mode, to control the The three-phase switching switch connects the fixed end and the selective end in the preset connection manner.

In the above technical solution, preferably, the processor further performs the following operations:

Determining six preset connection manners of three terminals in the fixed end and three feeding points in the selection end; calculating six of the six preset connection modes, the mobile terminal a resonant frequency band; storing one-to-one correspondence between the six resonant frequency bands and the six preset connection modes system.

Through the above technical solution, by providing a three-phase switching switch, a plurality of terminals of the fixed end, and a plurality of feeding points of the selecting end in the antenna switching component, a plurality of combined connection modes of the fixed end and the selecting end are realized, thereby obtaining a plurality of sets of resonance states. , to meet the bandwidth requirements that single resonance can not cover.

DRAWINGS

Figure 1 shows a schematic diagram of an antenna switching assembly in accordance with one embodiment of the present invention;

FIG. 2 shows a schematic flow chart of a handover method according to an embodiment of the present invention; FIG.

Figure 3 shows a schematic block diagram of a switching system in accordance with an embodiment of the present invention;

Figure 4 shows a schematic block diagram of an antenna in accordance with an embodiment of the present invention;

FIG. 5 shows a schematic block diagram of a mobile terminal in accordance with an embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram showing a first connection state of antenna feed point access according to an embodiment of the present invention; FIG.

FIG. 7 is a schematic diagram showing a second connection state of antenna feed point access according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic diagram showing a third connection state of antenna feed point access according to an embodiment of the present invention; FIG.

Figure 9 shows a test waveform diagram of a resonant frequency in accordance with an embodiment of the present invention;

Figure 10 shows a schematic diagram of an antenna switching assembly in accordance with one embodiment of the present invention;

Figure 11 shows a schematic block diagram of a mobile terminal in accordance with another embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to facilitate a full understanding of the invention, but the invention may also be practiced in a third-party manner other than that described herein, and therefore the scope of the invention is not disclosed The limitations of the specific embodiments.

FIG. 1 shows a schematic diagram of an antenna switching assembly in accordance with an embodiment of the present invention.

As shown in FIG. 1 , an antenna switching component 100 according to an embodiment of the present invention includes: a three-phase switching switch 102; a fixed end and a selection end, wherein the first terminal 1022 and the second terminal 1024 of the fixed end are grounded, and the fixed end is The third terminal 1026 is connected to the radio frequency processing module 108, and the selection end 1024 is connected to the first feed point 1042, the second feed point 1044 and the third feed point 1046 of the antenna body, the first end 1022, the second end 1024 and the first Any of the three terminals 1026 and any one of the first feed point 1042, the second feed point 1044, and the third feed point 1046 are connected by a three-phase changeover switch 102.

In the above technical solution, preferably, the method further includes: an impedance matching module connected between the selection end and the antenna body 104, the impedance matching module includes a first impedance matching unit 1062, a second impedance matching unit 1064, and a third impedance matching unit. 1064, wherein the first impedance matching unit 1062 is connected between the first feeding point 1042 and the antenna body 104, the second impedance matching unit 1064 is connected between the second feeding point 1044 and the antenna body 104, and the third impedance matching unit 1066 The element is connected between the third feed point 1046 and the antenna body 104.

In this technical solution, the effect of obtaining maximum power transmission is achieved by setting an impedance matching module, and the function of the impedance matching module is to reduce power consumption by impedance matching of the electromagnetic wave transmission line, thereby ensuring that the energy received by the receiving antenna can be maximized. The transfer of the limit is processed to the next stage. If the matching effect between the antenna matching circuit and the antenna is not good, the mismatch occurs, and a reflected wave is generated in the feeder. When the reflected wave reaches the transmitter, it will eventually be converted into heat, and the receiver will also lose it. The signal is not well received, that is, the antenna performance is impaired. In addition, in the antenna transmission parameters, the standing wave ratio is a common parameter for characterizing the matching performance. The lower the standing wave ratio is, the better the matching performance is. The higher the standing wave ratio is, the worse the matching performance is.

Specifically, when a high-frequency signal is transmitted from the beginning to the terminal along the feed line, the current or voltage at each point on the line changes according to the beat of the high-frequency oscillation, which is like an invisible on the line. Wave, if the impedance does not match the characteristics of the feeder, the transmitted high-frequency signal power cannot be absorbed.

FIG. 2 shows a schematic flow chart of a handover method in accordance with an embodiment of the present invention.

As shown in FIG. 2, the handover method according to an embodiment of the present invention includes: Step 202: Determine a connection state of a three-phase switch of an antenna switching component according to a radio frequency signal to be transmitted.

In the technical solution, the main feed point and the ground feed point of the access antenna circuit are in a working state by controlling the positions of the main feed point and the ground feed point of the access antenna circuit according to the received radio frequency signal, The antenna circuit is caused to generate resonance corresponding to the control signal, which satisfies the requirements of different frequency bands, so that the antenna can better receive and transmit the radio frequency signal.

FIG. 3 shows a schematic block diagram of a switching system in accordance with an embodiment of the present invention.

As shown in FIG. 3, the switching system 300 according to an embodiment of the present invention includes: a switching unit 302, configured to determine a connection state of a three-phase switching switch of an antenna switching component according to a radio frequency signal to be transmitted.

In the above technical solution, preferably, the switching unit 302 further includes: a parsing unit 3022, configured to parse a working frequency band of the radio frequency signal; a determining unit 3024, configured to determine a resonant frequency band to which the working frequency band belongs; the determining unit 3024 is further configured to: Corresponding relationship between the resonant frequency band and the preset connection mode, determining the connection mode of the three-phase switching switch to control the three-phase switching switch to be connected in a preset manner Connect the fixed end and the select end of the antenna switching component.

In the above technical solution, preferably, the determining unit 3024 is further configured to: determine six preset connection manners in which three terminals in the fixed end are connected one by one to three feeding points in the selection end; the switching system further includes: calculating The unit 304 is configured to calculate six resonant frequency bands of the antenna switching component in the six preset connection modes, and the storage unit 306 is configured to store a one-to-one correspondence between the six resonant frequency bands and the six preset connection modes.

Figure 4 shows a schematic block diagram of an antenna in accordance with an embodiment of the present invention.

As shown in FIG. 4, an antenna 400 according to an embodiment of the present invention includes the antenna switching component 100 of any of the above, and/or the switching system 300 of any of the above, and therefore, the antenna has the above technical solution. The same technical effects of the antenna switching component 100 and the switching system 300 of any one are not described herein.

FIG. 5 shows a schematic block diagram of a mobile terminal in accordance with an embodiment of the present invention.

As shown in FIG. 5, the mobile terminal 500 according to the embodiment of the present invention includes the antenna 400 as described above. Therefore, the mobile terminal has the same technical effects as the antenna 400 of the above technical solution, and details are not described herein again.

The antenna switching scheme according to the present invention will be further described below with reference to FIGS. 6 through 9.

FIG. 6 shows a first connection state diagram of antenna feed point access according to an embodiment of the present invention.

As shown in FIG. 6, the antenna body is provided with a first feed point, a second feed point and a third feed point, wherein the first ground signal is connected to the first feed point through the three-phase switch, and the second ground signal is passed through three. The phase switch is connected to the third feed point of the first feed point to form two ground feed points, and the radio frequency signal is connected to the second feed point through the three-phase switch to form a main feed point, and the antenna body and the switch are provided with a first An impedance matching unit, a second impedance matching unit and a third impedance matching unit generate a waveform diagram as shown in FIG. The first connection state is shown.

FIG. 7 shows a schematic diagram of a second connection state of antenna feed point access in accordance with an embodiment of the present invention.

As shown in FIG. 7, the antenna body is provided with a first feed point, a second feed point and a third feed point, wherein the first ground signal is connected to the second feed point through the three-phase switch, and the second ground signal is passed through three The phase switching switch is connected to the third feeding point to form two ground feeding points, and the radio frequency signal is connected to the first feeding point through the three-phase switching switch to form a main feeding point, and the first impedance matching unit is disposed between the antenna body and the switching switch. The second impedance matching unit and the third impedance matching unit generate waveforms as shown in the second connection state of FIG.

FIG. 8 shows a schematic diagram of a third connection state of antenna feed point access in accordance with an embodiment of the present invention.

As shown in FIG. 8, the antenna body is provided with a first feed point, a second feed point and a third feed point, wherein the first ground signal is connected to the first feed point through the three-phase switch, and the second ground signal is passed through three. The phase switch is connected to the second feed point to form two ground feed points, and the radio frequency signal is connected to the third feed point through the three-phase switch to form a main feed point, and the first impedance matching unit is disposed between the antenna body and the switch. The second impedance matching unit and the third impedance matching unit generate a waveform diagram as shown in the third connection state of FIG.

Figure 9 shows a test waveform diagram of a resonant frequency in accordance with an embodiment of the present invention.

As shown in FIG. 9, it is a resonance waveform diagram of three resonance states in FIG. 6 to FIG. 8, wherein the input signal of the X-axis is a resonance frequency, the unit is: MHz, and the output signal of the Y-axis is a standing wave ratio (SWR, Voltage). Standing Wave Ratio) refers to the ratio of the standing wave antinode voltage to the valley voltage amplitude. When the standing wave ratio is equal to 1, the impedance of the identification feeder and the antenna is completely matched. At this time, the high frequency energy is completely radiated by the antenna, and there is no energy. Return Loss.

In addition, it is worth noting that, in order to further widen the operating frequency band of the antenna, the antenna switching component may be further configured to include a plurality of radio frequency processing modules (for example, M, M is an integer greater than or equal to 2) and a plurality of ground terminals (eg, For N, N is an integer greater than or equal to 1), correspondingly, the number of the switch is equal to M+N, and the specific connection is as shown in FIG. 10, and the antenna switching component includes: a first feed point, a second feed point, and a a three-feed point, and a first RF signal, a second RF signal, and a ground signal, and connected through a three-phase switching switch, specifically, the first feed point is connected to the first RF signal, and the second feed point is connected to the second RF signal And the third feed point is connected to the ground signal, Among them, the connection method can also be switched to six.

As shown in FIG. 11, the mobile terminal includes: at least one processor 111, such as a CPU, at least one communication bus 112, a memory 113, and an antenna switching component 114. The antenna switching component includes: a radio frequency processing module and an antenna body. , a three-phase switch, a fixed end and a selection end, the schematic diagram of the antenna switching component can be seen in FIG. 1 or FIG. 10; the communication bus 112 is used to implement connection communication between these components; the memory 113 can be a high-speed RAM memory, It may be a non-volatile memory such as at least one disk storage. A set of program codes is stored in the memory 113, and the processor 111 is configured to call the program code stored in the memory 113 to perform the following operations:

In the above technical solution, the antenna switching component 114 further includes:

An impedance matching module is connected between the selection end and the antenna body, and the impedance matching module includes a first impedance matching unit, a second impedance matching unit, and a third impedance matching unit.

The first impedance matching unit is connected between the first feed point and the antenna body, and the second impedance matching unit is connected between the second feed point and the antenna body. A third impedance matching unit is coupled between the third feed point and the antenna body.

In the above technical solution, the processor 111 determines the connection state of the three-phase switch according to the radio frequency signal to be transmitted, and specifically includes:

In the above technical solution, the processor 111 also performs the following operations:

Determining six preset connection manners of three terminals in the fixed end and three feeding points in the selection end; calculating six of the six preset connection modes, the antenna switching component a resonant frequency band; storing a one-to-one correspondence between the six resonant frequency bands and the six preset connection modes.

6 to 11, it can be seen that by controlling the three-phase switching switch in different connection states, the antenna can generate resonances of different frequency bands, and by combining, can cover a wider frequency.

The technical solution of the present invention is described in detail above with reference to the accompanying drawings. In view of the technical problem of how to design an antenna switching scheme to achieve multi-band communication requirements in the related art, the present invention proposes a new antenna switching scheme, The antenna switching component is provided with a three-phase switching switch, a plurality of terminals of the fixed end, and a plurality of feeding points of the selecting end, thereby realizing a plurality of combined connection modes of the fixed end and the selecting end, thereby obtaining a plurality of sets of resonance states, which satisfy the single resonance cannot be covered. Bandwidth requirements.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

An antenna switching component, one side of the antenna switching component is connected to an antenna body for transmitting a radio frequency signal, and the other side of the antenna switching component is connected to a radio frequency processing module, wherein the antenna switching component includes :

Three-phase switching switch;

a fixed end and a selection end, wherein the first terminal and the second terminal of the fixed end are both grounded, a third terminal of the fixed end is connected to the radio frequency processing module, and the selection end is connected to the antenna body a first feed point, a second feed point, and a third feed point, any one of the first end, the second end, and the third end, and the first feed point, the second feed Any one of the point and the third feed point is connected by the three-phase changeover switch.
The antenna switching component of claim 1 further comprising:

An impedance matching module is connected between the selection end and the antenna body, and the impedance matching module includes a first impedance matching unit, a second impedance matching unit, and a third impedance matching unit.

The first impedance matching unit is connected between the first feed point and the antenna body, and the second impedance matching unit is connected between the second feed point and the antenna body. A third impedance matching unit is coupled between the third feed point and the antenna body.
A switching method is applicable to an antenna switching component, and the switching method includes:

Determining a connection state of the three-phase switching switch of the antenna switching component according to the radio frequency signal to be transmitted.
The switching method according to claim 3, wherein the connection state of the three-phase switching switch of the antenna switching component is determined according to the radio frequency signal to be transmitted, and specifically includes the following states:

Parsing a working frequency band of the radio frequency signal;

Determining a resonant frequency band to which the working frequency band belongs;

Determining, according to a correspondence relationship between the resonant frequency band and the preset connection mode, a connection manner of the three-phase switching switch, to control the three-phase switching switch to be connected to the antenna switching component by using the preset connection manner End and selection.
Switching method according to claim 4, characterized in that it is based on the radio frequency to be transmitted Before the signal determines the connection state of the three-phase switch of the antenna switching component, the method further includes:

Determining six preset connection manners in which three terminals of the fixed end are connected one by one with three feeding points of the selection end;

Calculating six resonant frequency bands of the antenna switching component in the six preset connection modes;

And storing a one-to-one correspondence between the six resonant frequency bands and the six preset connection modes.
A switching system is applicable to an antenna switching component, and the switching system includes:

And a switching unit, configured to determine, according to the radio frequency signal to be transmitted, a connection state of the three-phase switching switch of the antenna switching component.
The switching system according to claim 6, wherein the switching unit further comprises:

a parsing unit, configured to parse a working frequency band of the radio frequency signal;

a determining unit, configured to determine a resonant frequency band to which the working frequency band belongs;

The determining unit is further configured to: determine a connection manner of the three-phase switch according to a correspondence between the resonant frequency band and the preset connection manner, to control the three-phase switch to be in the preset connection manner A fixed end and a selective end of the antenna switching assembly are connected.
The switching system according to claim 7, wherein

The determining unit is further configured to: determine six preset connection manners that three terminals of the fixed end are connected one by one with three feeding points of the selection end;

The switching system further includes:

a calculating unit, configured to calculate six resonant frequency bands of the antenna switching component in the six preset connection modes;

And a storage unit, configured to store a one-to-one correspondence between the six resonant frequency bands and the six preset connection manners.
An antenna comprising an antenna switching component, and/or a switching system, one side of the antenna switching component is connected to an antenna body for transmitting a radio frequency signal, and the other side of the antenna switching component is connected to a radio frequency Processing module, where:

The antenna switching component includes:

Three-phase switching switch;

a fixed end and a selection end, wherein the first terminal and the second terminal of the fixed end are grounded, the fixing a third terminal of the terminal is connected to the radio frequency processing module, and the selection end is connected to the first feed point, the second feed point and the third feed point of the antenna body, the first end, the second end And connecting any one of the terminal and the third terminal to the first feed point, the second feed point, and the third feed point through the three-phase changeover switch;

The switching system includes:

And a switching unit, configured to determine, according to the radio frequency signal to be transmitted, a connection state of the three-phase switching switch of the antenna switching component.
The antenna according to claim 9, wherein the antenna switching component further comprises:

An impedance matching module is connected between the selection end and the antenna body, and the impedance matching module includes a first impedance matching unit, a second impedance matching unit, and a third impedance matching unit.

The first impedance matching unit is connected between the first feed point and the antenna body, and the second impedance matching unit is connected between the second feed point and the antenna body. A third impedance matching unit is coupled between the third feed point and the antenna body.
The antenna according to claim 9, wherein the switching unit further comprises:

a parsing unit, configured to parse a working frequency band of the radio frequency signal;

a determining unit, configured to determine a resonant frequency band to which the working frequency band belongs;

The determining unit is further configured to: determine a connection manner of the three-phase switch according to a correspondence between the resonant frequency band and the preset connection manner, to control the three-phase switch to be in the preset connection manner A fixed end and a selective end of the antenna switching assembly are connected.
The antenna according to claim 11, wherein

The determining unit is further configured to: determine six preset connection manners that three terminals of the fixed end are connected one by one with three feeding points of the selection end;

The switching system further includes:

a calculating unit, configured to calculate six resonant frequency bands of the antenna switching component in the six preset connection modes;

And a storage unit, configured to store a one-to-one correspondence between the six resonant frequency bands and the six preset connection manners.
A mobile terminal, comprising: a memory, a processor, and an antenna switching component, the antenna switching component comprising: a radio frequency processing module, an antenna body, a three-phase switching switch, a fixed end, and Selecting a terminal, the first terminal and the second terminal of the fixed end are both grounded, a third terminal of the fixed end is connected to the radio frequency processing module, and the selection end is connected to the first feed of the antenna body a point, a second feed point, and a third feed point, any one of the first end, the second end, and the third end, and the first feed point, the second feed point, and Any one of the third feed points is connected by the three-phase switch;

The program stores a set of program codes, and the processor is configured to call program code stored in the memory to perform the following operations:

Determining a connection state of the three-phase switch according to a radio frequency signal to be transmitted.
A mobile terminal according to claim 13, wherein

The antenna switching component further includes:

An impedance matching module is connected between the selection end and the antenna body, and the impedance matching module includes a first impedance matching unit, a second impedance matching unit, and a third impedance matching unit.

The first impedance matching unit is connected between the first feed point and the antenna body, and the second impedance matching unit is connected between the second feed point and the antenna body. A third impedance matching unit is coupled between the third feed point and the antenna body.
The mobile terminal according to claim 13, wherein the processor determines the connection state of the three-phase switch according to the radio frequency signal to be transmitted, and specifically includes:

Parsing a working frequency band of the radio frequency signal;

Determining a resonant frequency band to which the working frequency band belongs;

Determining, according to a correspondence between the resonant frequency band and the preset connection mode, a connection manner of the three-phase switching switch, to control the three-phase switching switch to connect the fixed end and the selective end by using the preset connection manner .
The mobile terminal of claim 15, wherein

The processor also performs the following operations:

Determining six preset connection manners in which three terminals of the fixed end are connected one by one with three feeding points of the selection end;

Calculating six resonant frequency bands of the antenna switching component in the six preset connection modes;

And storing a one-to-one correspondence between the six resonant frequency bands and the six preset connection modes.