CN113949391A

CN113949391A - Antenna device, electronic equipment and communication method

Info

Publication number: CN113949391A
Application number: CN202010684895.0A
Authority: CN
Inventors: 薛孙曦; 张亮; 朱余浩
Original assignee: Shenzhen Gongjin Electronics Co Ltd
Current assignee: Shenzhen Gongjin Electronics Co Ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2022-01-18

Abstract

An antenna device, an electronic apparatus and a communication method, wherein the antenna device includes at least two antennas, at least two filter circuits and at least two wireless communication modules. The out-of-band noise in the received radio-frequency signals is attenuated through the filter circuit, so that signals at non-working frequency sections are restrained, the isolation degree between the antennas is increased, the out-of-band noise of the radio-frequency signals corresponding to a certain wireless communication module is prevented from falling into the working frequency band of another wireless communication module, a plurality of wireless communication modules can work simultaneously, mutual influence is reduced as much as possible, and the respective performance is guaranteed to be optimal.

Description

Antenna device, electronic equipment and communication method

Technical Field

The present application belongs to the field of wireless communication technologies, and in particular, to an antenna device, an electronic device, and a communication method.

Background

In recent years, wireless communication technology has been rapidly developed, user demands have been further increased, and more electronic products need to be provided with more than two wireless communication modules to be applied to different communication scenes. However, the working frequency bands between every two wireless communication modules are adjacent to each other, so that interference such as adjacent frequency and harmonic wave is easily generated, and respective out-of-band noise falls into the working frequency band of the other side, thereby affecting the receiving performance, and in severe cases, one side cannot work; for example, when a smartphone makes a call through the fifth generation mobile communication module, software (such as WeChat) on the smartphone that relies on the sixth generation Wi-Fi communication module to make a communication often cannot send and receive signals.

Therefore, the conventional wireless communication technical scheme has the problem that the working frequency bands of every two wireless communication modules are adjacent to each other, so that interference such as adjacent frequency and harmonic waves is easily generated.

Disclosure of Invention

An object of the present application is to provide an antenna apparatus, an electronic device and a communication method, which are used to solve the problem that the interference of adjacent frequency, harmonic wave and the like is easily generated due to the fact that the working frequency bands of two wireless communication modules are adjacent to each other in the conventional wireless communication technical scheme.

A first aspect of embodiments of the present application provides an antenna apparatus, connected to a transceiver, where the transceiver is configured to output an initial signal, and the antenna apparatus includes:

the antenna comprises at least two antennas, a plurality of antenna groups and a plurality of antenna groups, wherein the working frequency bands of the antennas are different, and the antennas are used for wirelessly receiving and transmitting corresponding radio frequency signals;

the antenna comprises at least two filter circuits, wherein one filter circuit is correspondingly connected with one antenna and used for receiving the radio frequency signals and attenuating out-of-band noise in the radio frequency signals; and

the wireless communication module is used for converting the initial signal into a corresponding radio frequency signal and outputting the radio frequency signal to the filter circuit, or converting the radio frequency signal output by the filter circuit and outputting the radio frequency signal to the transceiver.

According to the antenna device, the filtering circuit is used for attenuating the out-of-band noise in the received radio frequency signals, so that the signals at the non-working frequency band section are restrained, the isolation degree among the antennas is increased, the out-of-band noise of the radio frequency signals corresponding to a certain wireless communication module is prevented from falling into the working frequency band of another wireless communication module, the multiple wireless communication modules can work simultaneously, the mutual influence is reduced as much as possible, and the respective performance is ensured to be optimal.

Optionally, one of the filter circuits includes:

a first filter, a second filter and a duplexer;

the working frequency of the first filter is 2.442GHz, and the working frequency of the first filter is 5.515 GHz; the first transmission end of the first filter and the first transmission end of the second filter are connected with the same wireless communication module, the second transmission end of the first filter and the second transmission end of the second filter are connected with the duplexer, and the duplexer is connected with the antenna.

According to the filter circuit, the first filter is used for filtering the radio-frequency signals in the wireless communication channel of 2.4GHz, the second filter is used for filtering the radio-frequency signals in the wireless communication channel of 5GHz, the radio-frequency signals are processed by the first filter or the second filter, out-of-band noise falls into the working frequency band of a certain wireless communication module, the influence of each wireless communication module is guaranteed, and the performance of each wireless communication module is guaranteed to be optimal.

Optionally, the first filter is implemented by a surface acoustic wave filter.

Optionally, the second filter is implemented by a band-pass filter.

Through the cooperation of the surface acoustic wave filter and the band-pass filter, out-of-band noise including adjacent frequency interference and harmonic interference is suppressed, and a plurality of wireless communication modules can work simultaneously.

Optionally, one of the filter circuits includes:

and the first transmission end of the band-pass filter is connected with one wireless communication module, and the second transmission end of the band-pass filter is connected with one antenna.

Specifically, the working frequency band of the band-pass filter is any one of 2.515 GHz-2.675 GHz, 3.400 GHz-3.600 GHz or 4.800 GHz-4.900 GHz. And selecting a band-pass filter corresponding to the center frequency corresponding to different wireless communication modules, and performing band-pass filtering to suppress out-of-band noise.

Optionally, the method further includes:

and the communication bus is connected with each wireless communication module and is used for transmitting the working state information and the wireless channel information of each wireless communication module to the rest wireless communication modules.

Specifically, each wireless communication module knows the working state of each other through the communication bus and cooperates with each other, and when the respective working frequency bands of the two wireless communication modules are close, the wireless channel of the wireless communication module with the lower working priority in the two wireless communication modules is switched to a lower or higher wireless channel, so that the frequency spectrum distance between the two wireless communication modules is increased, and the physical isolation of the antenna is improved.

Optionally, the wireless communication module is implemented by any one of a fifth-generation mobile communication network module, a WiFi module, a bluetooth module, a Zigbee module, or a Z-wave module.

A second aspect of an embodiment of the present application provides an electronic device, including:

the above-described antenna device; and

and the transceiver is connected with the antenna device and used for outputting the initial signal.

A third aspect of an embodiment of the present application provides a communication method, including:

at least two antennas are adopted to wirelessly receive and transmit corresponding radio frequency signals, and the working frequency bands of the antennas are different;

adopting at least two filter circuits to attenuate out-of-band noise in the received radio frequency signal and then outputting the attenuated out-of-band noise;

converting the initial signal into a corresponding radio frequency signal by adopting at least two wireless communication modules and outputting the radio frequency signal to the corresponding filter circuit, or converting the radio frequency signal output by the corresponding filter circuit and outputting the radio frequency signal;

and transmitting the working state information and the wireless channel information of each wireless communication module to the rest wireless communication modules by adopting a communication bus.

Optionally, the method further includes:

dividing the working priority of each wireless communication module;

acquiring the working frequency band of each wireless communication module;

and when the difference of the working frequency bands between any two working wireless communication modules is judged to be smaller than a preset value, performing wireless channel switching on one of the two wireless communication modules with a lower working priority.

The wireless channel of the wireless communication module with lower working priority in the two wireless communication modules is switched to a lower wireless channel or a higher wireless channel, so that the frequency spectrum distance between the two wireless communication modules is increased, and the physical isolation of the antenna is further improved.

Compared with the prior art, the embodiment of the invention has the following beneficial effects: according to the antenna device, the electronic equipment and the communication method, the filtering circuit is used for attenuating the out-of-band noise in the received radio frequency signals, so that the signals at the non-working frequency band section are restrained, the isolation degree among the antennas is increased, the out-of-band noise of the radio frequency signals corresponding to a certain wireless communication module is prevented from falling into the working frequency band of another wireless communication module, the multiple wireless communication modules can work simultaneously, the mutual influence is reduced as much as possible, and the respective performances are ensured to be optimal.

Drawings

Fig. 1 is a schematic block diagram of an antenna device according to an embodiment of the present disclosure;

fig. 2 is an exemplary schematic diagram of a filter circuit in the antenna arrangement shown in fig. 1;

fig. 3 is a schematic diagram showing a specific example of the filter circuit 1 in the antenna device shown in fig. 2;

fig. 4 is a schematic diagram of a specific example of the antenna apparatus shown in fig. 1;

fig. 5 is a schematic block diagram of an antenna apparatus according to another embodiment of the present application;

fig. 6 is a detailed flowchart of a communication method according to an embodiment of the present application;

fig. 7 is a detailed flowchart of a communication method according to another embodiment of the present application;

fig. 8 is an operation diagram of the antenna device shown in fig. 1.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, a schematic block diagram of an antenna device according to an embodiment of the present disclosure is shown, for convenience of description, only the parts related to the embodiment are shown, and the following details are described:

an antenna device is connected to a transceiver 100, and the transceiver 100 is used for outputting an initial signal. Specifically, the initial signal may be an analog audio signal, or an analog image signal.

The antenna device comprises at least two antennas 30, at least two filter circuits 20 and at least two wireless communication modules 10. Fig. 1 shows an antenna 1, an antenna 2, … …, an antenna n, a filter circuit 1, a filter circuit 2, … …, a filter circuit n, a wireless communication module 1, a wireless communication module 2, … …, a wireless communication module n.

One filter circuit 20 is correspondingly connected to one antenna 30, each wireless communication module 10 is connected to the transceiver 100, and one wireless communication module 10 is correspondingly connected to one filter circuit 20.

The operating frequency band of each antenna 30 is different, and each antenna 30 is used for wirelessly receiving and transmitting corresponding radio frequency signals.

In particular, the antenna 30 may be an on-board antenna, a ceramic antenna, an IPX antenna, or an IPEX antenna.

The filter circuit 20 attenuates out-of-band noise in the received radio frequency signal and outputs the attenuated out-of-band noise.

Specifically, the rf signal received by the filter circuit 20 may be from the correspondingly connected wireless communication module 10, or may be from the correspondingly connected antenna 30.

The wireless communication module 10 converts the initial signal into a corresponding radio frequency signal and outputs the radio frequency signal to the corresponding filter circuit 20, or converts the radio frequency signal output by the corresponding filter circuit 20 and outputs the radio frequency signal to the transceiver 100.

Specifically, when the wireless communication module 10 converts the initial signal into a corresponding radio frequency signal, the conversion process includes amplification processing, analog-to-digital conversion processing, and modulation processing, and in addition, encryption processing may also be performed; when the wireless communication module 10 converts the radio frequency signal output by the corresponding filter circuit 20, the conversion process includes demodulation, digital-to-analog conversion, and amplification, and in addition, decryption may also be performed, and after the wireless communication module 10 converts the radio frequency signal output by the corresponding filter circuit 20, the radio frequency signal is output to a signal playing component, which may be a speaker or a picture display.

Optionally, the wireless communication module 10 is implemented by any one of a fifth generation mobile communication network module (5th generation wireless systems, 5G), a WiFi module, a bluetooth module, a Zigbee module, an LTE module, or a Z-wave module.

The following describes an operating mechanism of the wireless device according to this embodiment by taking two wireless communication modules 10, i.e., an LTE module and a WiFi module, as an example, with reference to fig. 8.

As shown in fig. 8, two operating BANDs BAND40 and BAND7 of the LTE module are respectively located at two sides of a partial operating BAND of the WiFi module, and when the LTE module transmits a radio frequency signal at the operating BAND40, out-of-BAND noise of the LTE module falls into wireless channels CH 1-CH 6 of the WiFi module; when the LTE module transmits radio frequency signals at the operating BAND7, out-of-BAND noise thereof falls into a plurality of radio channels behind the radio channel CH11 and the radio channel CH11 of the WiFi module.

This application is through introducing filter circuit 20, carries out attenuation treatment to the outband noise in the radio frequency signal that receives to restrain the signal of non-working frequency section department, increase the isolation between each antenna 30, avoid the outband noise of the radio frequency signal that certain wireless communication module 10 corresponds to fall into in another wireless communication module 10's the working frequency channel, realize that a plurality of wireless communication modules 10 can work simultaneously, and minimize influences each other, ensure that respective performance reaches the best.

Fig. 2 is a schematic diagram of an example of a filter circuit in the antenna device shown in fig. 1, which only shows the parts related to the present embodiment for convenience of description, and the details are as follows:

optionally, the filter circuit 1 includes a first filter 21, a second filter 22, and a duplexer 23.

The first filter 21 operates at 2.442GHz, and the second filter 22 operates at 5.515 GHz.

The first transmission end of the first filter 21 and the first transmission end of the second filter 22 are both connected to the wireless communication module 1, the second transmission end of the first filter 21 and the second transmission end of the second filter 22 are both connected to the duplexer 23, and the duplexer 23 is connected to an antenna.

Specifically, when the operating frequency band of the wireless communication module 1 is 5GHz, the second filter 22 operates; when the operating frequency band of the wireless communication module 1 is 2.4GHz, the first filter 21 operates.

In the filter circuit, the first filter 21 filters the radio frequency signals in the 2.4G wireless channel, the second filter 22 filters the radio frequency signals in the 5GHz wireless channel, the radio frequency signals are processed by the first filter 21 or the second filter 22, and out-of-band noise falls into the working frequency band of a certain wireless communication module, so that each wireless communication module 10 is ensured to be affected, and the respective performance is ensured to be optimal.

Referring to fig. 3, a schematic diagram of a specific example of the filter circuit 1 in the antenna device shown in fig. 2 is shown, and for convenience of description, only the parts related to the present embodiment are shown, and detailed descriptions are as follows:

alternatively, the first filter 21 is implemented by a surface acoustic wave filter, and the second filter 22 is implemented by the band pass filter 1.

Specifically, the surface acoustic wave filter has the characteristics of wide passband, high working frequency, small volume, good frequency selection characteristic, light weight and the like, can adopt the same production process as the integrated circuit, and has the advantages of simple manufacture, low cost and higher consistency of frequency characteristic. The signal is converted for two times from electricity to sound to electricity in the surface acoustic wave filter, and the interdigital transducer has frequency selection characteristic due to the piezoelectric effect of the substrate; the frequency selection characteristic of the surface acoustic wave filter is ideal under the combined action of the two interdigital transducers.

Through the cooperation of the surface acoustic wave filter and the band-pass filter 1, out-of-band noise including adjacent frequency interference and harmonic interference is suppressed, and a plurality of wireless communication modules can work simultaneously.

Referring to fig. 4, a schematic diagram of a specific example of the antenna device shown in fig. 1 is shown, for convenience of description, only the parts related to the present embodiment are shown, and the details are as follows:

the filter circuit 2 comprises a band-pass filter 2, a first transmission end of the band-pass filter 2 is connected with a wireless communication module 2, and a second transmission end of the band-pass filter 2 is connected with the antenna 2.

Please refer to fig. 5, which is a schematic diagram of a module structure of an antenna apparatus according to another embodiment of the present application, and for convenience of description, only the parts related to the embodiment are shown, and the detailed description is as follows:

in an optional embodiment, the antenna apparatus further includes a communication bus.

A communication bus connects each wireless communication module 10, and the communication bus transmits the operating state information and the wireless channel information of the respective wireless communication module 10 to the remaining wireless communication modules 10.

Specifically, each wireless communication module 10 learns and cooperates the working state of each other through the communication bus, and when the respective working frequency bands of the two wireless communication modules 10 are close, the wireless channel of the wireless communication module with the lower working priority in the two wireless communication modules 10 is switched to a lower or higher wireless channel, so that the spectral distance between the two wireless communication modules 10 is increased, and the physical isolation between the antennas 30 is improved.

Whether a wireless communication module 10 is powered on and whether a radio frequency signal is being transmitted/received can be known through the working state information, and the working frequency band of the wireless communication module 10 can be known through the wireless channel information.

Optionally, the software determines the working priority of each wireless communication module 10, for example, the software determines that the working priority of the wireless communication module 1 is smaller than the working priority of the wireless communication module 2; when the wireless communication module 1 and the wireless communication module 2 work simultaneously, the working frequency bands of the two are read, and if the distance value between the working frequency bands of the two is smaller than the preset value, the wireless communication module 1 with the lower working priority in the two corresponding wireless communication modules 10 is switched to the wireless channel. The software is stored in a computer readable storage medium.

An embodiment of the present application provides an electronic device, which includes the above antenna apparatus, and further includes a transceiver 100. The transceiver 100 is connected to the antenna device for outputting an initial signal to the antenna device.

Optionally, the electronic device is implemented by any one of a smart phone, a smart watch, a tablet, or a notebook computer.

Please refer to fig. 6, which is a detailed flowchart of a communication method according to an embodiment of the present application, wherein for convenience of description, only the relevant portions of the embodiment are shown, and the detailed description is as follows:

a method of communication, comprising the steps of:

s01: at least two antennas 30 are adopted to wirelessly receive and transmit corresponding radio frequency signals, and the working frequency range of each antenna is different;

s02: at least two filter circuits 20 are adopted to perform attenuation processing on out-of-band noise in the received radio frequency signals, and then output the processed out-of-band noise;

s03: at least two wireless communication modules 10 are adopted to convert the initial signals into corresponding radio frequency signals and output the radio frequency signals to corresponding filter circuits 20, or the radio frequency signals output by the corresponding filter circuits 20 are converted and then output;

s04: the operating state information and the wireless channel information of each wireless communication module 10 are transmitted to the remaining wireless communication modules 10 using a communication bus.

Specifically, whether a wireless communication module 10 is powered on or not and whether a radio frequency signal is being transmitted/received can be known through the operating state information, and the operating frequency band of the wireless communication module 10 can be known through the wireless channel information.

Referring to fig. 7, a detailed flowchart of a communication method according to another embodiment of the present application is shown, for convenience of description, only the relevant portions of the embodiment are shown, and the following details are described:

optionally, the communication method further includes the following steps:

s05: dividing the working priority of each wireless communication module 10;

s06: acquiring a working frequency band of the wireless communication module 10;

s07: judging the distance value of the working frequency band between any two wireless communication modules 10 in work;

s08: when the distance value is smaller than the preset value, the wireless channel 10 is switched to the corresponding one of the two wireless communication modules 10 with the lower priority.

Specifically, the software determines the working priority of each wireless communication module, for example, the software determines that the working priority of the wireless communication module 1 is smaller than that of the wireless communication module 2; when the wireless communication module 1 and the wireless communication module 2 work simultaneously, the working frequency bands of the wireless communication module 1 and the wireless communication module 2 are read, and if the distance value between the working frequency bands of the wireless communication module and the wireless communication module is smaller than the preset value, the wireless communication module 1 with the lower working priority in the two corresponding wireless communication modules is switched to a wireless channel. The software is stored in a computer readable storage medium.

In step S08, the preset value may be set by a user according to actual working requirements, and when switching the wireless channel, the wireless channel of the wireless communication module to be switched is switched to a wireless channel higher or lower than the original wireless channel, so as to increase the isolation between the wireless channels corresponding to the two wireless communication modules.

It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

In summary, the present application provides an antenna apparatus, an electronic device and a communication method. The out-of-band noise in the received radio-frequency signals is attenuated through the filter circuit, so that signals at non-working frequency sections are restrained, the isolation degree between the antennas is increased, the out-of-band noise of the radio-frequency signals corresponding to a certain wireless communication module is prevented from falling into the working frequency band of another wireless communication module, a plurality of wireless communication modules can work simultaneously, mutual influence is reduced as much as possible, and the respective performance is guaranteed to be optimal.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.

Claims

1. An antenna device connected to a transceiver for outputting an initial signal, the antenna device comprising:

2. The antenna assembly of claim 1, wherein one of said filter circuits comprises:

a first filter, a second filter and a duplexer;

the center frequency of the first filter is 2.442GHz, and the center frequency of the second filter is 5.515 GHz; the first transmission end of the first filter and the first transmission end of the second filter are connected with the same wireless communication module, the second transmission end of the first filter and the second transmission end of the second filter are connected with the duplexer, and the duplexer is connected with the antenna.

3. The antenna device of claim 2, wherein said first filter is implemented as a surface acoustic wave filter.

4. The antenna arrangement according to claim 3, wherein the second filter is implemented as a band pass filter.

5. The antenna assembly of claim 1, wherein one of said filter circuits comprises:

6. The antenna device of claim 5, wherein the band pass filter has an operating frequency range of any one of 2.515 GHz-2.675 GHz, 3.400 GHz-3.600 GHz, or 4.800 GHz-4.900 GHz.

7. The antenna apparatus of claim 1, further comprising:

8. The antenna device of claim 1, wherein the wireless communication module is implemented by using any one of a fifth generation mobile communication network module, a WiFi module, a bluetooth module, a Zigbee module, or a Z-wave module.

9. An electronic device, comprising:

an antenna arrangement as claimed in any one of claims 1 to 8; and

10. A communication method based on the antenna device of claim 7, comprising:

receiving radio frequency signals by adopting at least two filter circuits, and attenuating out-of-band noise in the radio frequency signals;

converting the initial signal into a corresponding radio frequency signal by adopting at least two wireless communication modules and outputting the radio frequency signal to the filter circuit, or converting the radio frequency signal output by the filter circuit and outputting the radio frequency signal;

11. The communication method of claim 10, further comprising:

dividing the working priority of each wireless communication module;

acquiring a working frequency band of the wireless communication module;

judging the distance value of the working frequency band between any two working wireless communication modules;

and when the distance value is smaller than a preset value, performing wireless channel switching on the one with the lower working priority in the two corresponding wireless communication modules.