CN109194355B - An antenna tuning circuit, method, system and wireless communication device - Google Patents

Abstract

The application is suitable for the technical field of communication, and provides an antenna tuning circuit, a method, a system and wireless communication equipment, wherein a protective sleeve is sleeved on the wireless communication equipment through detection, the signal intensity and/or the error rate of a communication signal sent by an antenna of the wireless communication equipment are/is detected, when the protective sleeve is sleeved on the wireless communication equipment and the signal intensity is lower than the preset intensity and/or the error rate is higher than the preset rate, the working frequency of the antenna is increased, the influence of the working frequency of the antenna on low-frequency deviation caused by the sleeved protective sleeve can be effectively eliminated, and the communication performance of the wireless communication equipment is improved.

Description

An antenna tuning circuit, method, system and wireless communication device

technical field

The present application belongs to the field of communication technologies, and in particular, relates to an antenna tuning circuit, method, system and wireless communication device.

Background technique

With the continuous development of communication technology, wireless communication devices are constantly developing in the direction of large-screen, thin, and portable. In addition, with the increase in the number of communication satellites and ground base stations, the communication quality of wireless communication devices has also been significantly improved, so that people can remotely connect to the Internet through wireless communication devices anytime, anywhere.

However, in actual use, external environmental factors such as a protective cover, geographical environment, building density, and layout of the wireless communication device will still have a certain impact on the communication performance of the wireless communication device.

SUMMARY OF THE INVENTION

In view of this, the embodiments of the present application provide an antenna tuning circuit, method, system, and wireless communication device, aiming to solve the problem that the protective cover of the wireless communication device will affect the communication performance of the wireless communication device.

A first aspect of the embodiments of the present application provides an antenna tuning circuit, which is applied to a wireless communication device, where the wireless communication device includes at least one radio frequency module, and the antenna tuning circuit includes:

at least one antenna, each of the radio frequency modules corresponds to one antenna;

a protective cover detection module, the protective cover detection module is used to detect whether the wireless communication device is covered with a protective cover, and when the wireless communication device is covered with a protective cover, a first tuning signal is issued;

A signal quality detection module, configured to detect the signal strength and/or bit error rate of the communication signal sent by the antenna, and when the signal strength is lower than a preset strength and/or the bit error rate is higher than a preset rate , sending out a second tuning signal; and

A tuning module, which is electrically connected to the radio frequency module, the antenna, the protective sleeve detection module and the signal quality detection module, respectively, and is used for receiving the first tuning signal and the second tuning signal. When tuning the signal, increase the working frequency of the antenna until the signal strength of the communication signal sent by the antenna is greater than or equal to the preset strength and the bit error rate is less than or equal to the preset ratio, or the antenna works until the frequency reaches the maximum.

In one embodiment, the at least one radio frequency module includes at least one of a GPS module, a WiFi module, a Bluetooth module, a GSM module, and an NFC module.

In one embodiment, the at least one radio frequency module includes a GPS module, and the minimum operating frequency of the antenna corresponding to the GPS module is the L1 frequency band.

In one embodiment, the antenna is a monopole antenna or IFA.

In one embodiment, the tuning module includes at least one electronic switch unit and at least one impedance unit, and each of the radio frequency modules corresponds to one electronic switch unit and one impedance unit;

The input end of the electronic switch unit is electrically connected to the corresponding radio frequency module, the controlled end of the electronic switch unit is electrically connected to the protective cover detection module and the signal quality detection module, and the electronic switch corresponding to the radio frequency module is electrically connected The output end of the unit is electrically connected to the input end of the impedance unit corresponding to the radio frequency module, and the output end of the impedance unit corresponding to the radio frequency module is electrically connected to the antenna corresponding to the radio frequency module;

Alternatively, the radio frequency module is electrically connected to the input end of the corresponding impedance unit, the output end of the impedance unit corresponding to the radio frequency module is electrically connected to the input end of the electronic switch unit corresponding to the radio frequency module, and the The controlled end is electrically connected to the protective cover detection module and the signal quality detection module, and the output end of the electronic switch unit corresponding to the radio frequency module is electrically connected to the antenna corresponding to the radio frequency module.

In one embodiment, the electronic switch unit includes at least one SPST analog switch, at least one SPDT analog switch, or at least one SPMT analog switch, and the impedance unit includes at least one resistor;

The output end of the single-pole single-throw analog switch, each output end of the single-pole double-throw analog switch, or each output end of the single-pole multi-throw analog switch is electrically connected with or a series circuit composed of at least two of the resistors .

In one embodiment, the tuning module includes at least one digital potentiometer, and each of the radio frequency modules corresponds to one digital potentiometer;

The input end of the digital potentiometer corresponding to the radio frequency module is electrically connected to the radio frequency module, the controlled end of the digital potentiometer is electrically connected to the protective sleeve detection module and the signal quality detection module, and the radio frequency module The output end of the corresponding digital potentiometer is electrically connected with the antenna corresponding to the radio frequency module.

A second aspect of the embodiments of the present application provides an antenna tuning method, which is applied to a wireless communication device, where the wireless communication device includes the above-mentioned antenna tuning circuit, and the antenna tuning method includes:

controlling the protective cover detection module to detect whether the wireless communication device is covered with a protective cover;

When the wireless communication device is covered with a protective cover, the protective cover detection module is controlled to send out a first tuning signal;

controlling the signal quality detection module to detect the signal strength and/or the bit error rate of the communication signal sent by the antenna;

When the signal strength is lower than a preset strength and/or the bit error rate is higher than a preset ratio, the signal quality detection module is controlled to send a second tuning signal.

A third aspect of the embodiments of the present application provides an antenna tuning system, which is applied to a wireless communication device, where the wireless communication device includes the above-mentioned antenna tuning circuit, and the antenna tuning system includes:

a first control module, configured to control the protective cover detection module to detect whether the wireless communication device is covered with a protective cover;

a second control module, configured to control the protective cover detection module to send out a first tuning signal when the wireless communication device is equipped with a protective cover;

a third control module, configured to control the signal quality detection module to detect the signal strength and/or the bit error rate of the communication signal sent by the antenna;

A fourth control module, configured to control the signal quality detection module to send out a second tuning signal when the signal strength is lower than a preset strength and/or the bit error rate is higher than a preset ratio.

A fourth aspect of the embodiments of the present application provides a wireless communication device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the computer program When implementing the steps of the above method.

A fifth aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the foregoing method are implemented.

In the embodiment of the present application, by detecting whether the wireless communication device is covered with a protective cover, and detecting the signal strength and/or the bit error rate of the communication signal sent by the antenna of the wireless communication device, a protective cover is installed on the wireless communication device and the signal strength is lower than the predetermined value. When the strength and/or the bit error rate is higher than the preset ratio, increasing the working frequency of the antenna can effectively eliminate the influence of the working frequency of the antenna shifting to the low frequency caused by the protective cover, and improve the communication of wireless communication equipment. performance.

Description of drawings

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

1 is a schematic structural diagram of an antenna tuning circuit provided in Embodiment 1 of the present application;

2 and 3 are schematic structural diagrams of an antenna tuning circuit provided in Embodiment 2 of the present application;

4 and 5 are schematic structural diagrams of an antenna tuning circuit provided in Embodiment 3 of the present application;

6 is a schematic structural diagram of an antenna tuning circuit provided in Embodiment 4 of the present application;

7 is a schematic flowchart of an antenna tuning method provided in Embodiment 5 of the present application;

8 is a schematic structural diagram of an antenna tuning system provided in Embodiment 6 of the present application;

FIG. 9 is a schematic structural diagram of a wireless communication device according to Embodiment 7 of the present application.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are of the present application. Some examples, but not all examples. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

The term "comprising" and any variations thereof in the description and claims of this application and the above-mentioned drawings are intended to cover the non-exclusive inclusion. For example, a process, method or system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes Other steps or units inherent in these processes, methods, products or devices.

Example 1

As shown in FIG. 1 , this embodiment provides an antenna tuning circuit 10, which is applied to a wireless communication device 100. The wireless communication device 100 includes at least one radio frequency module 101-10M (FIG. 1 exemplarily shows the radio frequency module 101, the radio frequency The modules 102, . . . , and the radio frequency module 10M have a total of M radio frequency modules; wherein, M≧1 and an integer).

In a specific application, the wireless communication device may be any device with a wireless communication function, such as a mobile phone, a tablet computer, a smart bracelet, a personal digital assistant, a mobile POS (point of sale, sales terminal) machine. The radio frequency module may be any circuit, chip or device provided in the wireless communication device that transmits radio frequency signals for wireless communication, for example, a GPS (Global Positioning System, global positioning system) module, a WiFi module, a Bluetooth module, a GSM (Global System For Mobile Communications) module and NFC (Near Field Communication, short-range wireless communication technology) module and so on. The radio frequency module can be set independently of the baseband chip or integrated with the baseband chip.

In one embodiment, the at least one radio frequency module includes at least one of a GPS module, a WiFi module, a Bluetooth module, a GSM module, and an NFC module.

As shown in FIG. 1, the antenna tuning circuit 10 includes:

at least one antenna 11-1M (in FIG. 1, the antenna 11, the antenna 12, . . . , and the antenna 1M are shown as M antennas in total);

A protective cover detection module 2, the protective cover detection module 2 is used to detect whether the wireless communication device 100 is covered with a protective cover, and when the wireless communication device 100 is covered with a protective cover, it sends a first tuning signal;

The signal quality detection module 3 is used to detect the signal strength and/or bit error rate of the communication signals sent by the antennas 11-1M, and when the signal strength is lower than the preset strength and/or the bit error rate is higher than the preset ratio, send out a second tuning signal; and

Tuning module 4, the tuning module 4 is respectively electrically connected with the radio frequency modules 101-10M, the antennas 11-1M, the protective cover detection module 2 and the signal quality detection module 3, and is used for receiving the first tuning signal and the second tuning signal, Increase the working frequency of the antennas 11 to 1M until the signal strength of the communication signals sent by the antennas 11 to 1M is greater than or equal to the preset strength and the bit error rate is less than or equal to the preset ratio, or when the working frequency of the antenna reaches the maximum until.

In this embodiment, the protective cover refers to a protective cover that is set on the wireless communication device according to the actual needs of the user, and is mainly used to protect the wireless communication device from falling, anti-skid, scratches, etc., and is both aesthetically pleasing or interesting. Protect the structure. The protective case can be made of silicone, plastic, metal, wood and other materials.

In specific applications, depending on the type of radio frequency module, the initial operating frequency of the antenna corresponding to the radio frequency module (that is, the operating frequency before frequency adjustment by the tuning module) is also different. Specifically, the radio frequency transmitted by the corresponding type of radio frequency module is different. frequency of the signal.

In one embodiment, the at least one radio frequency module includes a GPS module, and the minimum operating frequency of the antenna corresponding to the GPS module is the L1 frequency band.

In specific applications, the frequency range of the L1 frequency band is 1.57542±1.023MHz. When the wireless communication device is equipped with a protective cover and the signal strength of the antenna is lower than the preset strength and/or the bit error rate is higher than the preset ratio, it is necessary to connect the GPS The operating frequency of the antenna corresponding to the module is adjusted to be greater than 1.57542±1.023MHz, and the specific operating frequency to be adjusted is related to the thickness, material, structure of the protective cover and the specific position of the wireless communication device.

In one embodiment, the tuning module is configured to, when receiving the first tuning signal and the second tuning signal, adjust the working frequency of the antenna corresponding to the GPS module to B3, B4, Bands B9, B10 or B24.

In specific applications, the full name of the letter B in B3, B4, B9, B10 and B24 is BAND, which means frequency band. The uplink frequency range of B3 frequency band is 1710MHz～1785MHz, the uplink frequency range of B4 frequency band is 1710MHz～1755MHz, the uplink frequency range of B9 frequency band is 1749.9MHz～1784.9MHz, the uplink frequency range of B10 frequency band is 1710MHz～1770MHz, and the uplink frequency range of B24 frequency band is 1710MHz～1770MHz. The frequency range is 1626.5MHz～1660.5MHz.

In one embodiment, the antenna is a monopole antenna or IFA.

In specific applications, due to the narrow operating frequency bands of monopole antennas (monopole antennas) and IFA (Inverted-F antennas, inverted-F antennas), they are easily affected by changes in the external environment such as protective covers. When the device is equipped with a protective cover and the communication performance is poor, adjust the working frequency of the antenna.

In a specific application, the protective cover detection module may be a software program module in the system setting program of the wireless communication device, and its working principle is: the user sets the protective cover detection module to detect the wireless communication device through any human-computer interaction method. Covered or uncovered. The protective cover detection module can also be a proximity sensor or a light sensor disposed in the wireless communication device, and detects whether the wireless communication device is protected by detecting whether an object contacts the wireless communication device or the light intensity of the environment where the wireless communication device is located. set. The specific implementation manner of the protective cover detection module may include at least one or a combination of the foregoing manners.

In a specific application, the signal quality detection module may be a system program of a wireless communication device or a software program module in a system setting program, and its working principle is: the user sets the signal strength of the communication signal sent by the antenna through any human-computer interaction method and/or bit error rate; or, the signal quality detection module detects the speed and/or bit error rate at which the wireless communication device receives and/or transmits communication information during the communication process. The signal quality detection module may also be a detection device, circuit or chip provided in the wireless communication device for detecting communication performance.

In specific applications, the tuning module can be implemented by analog switches, electronic switches, chips or circuit structures with corresponding functions. The electrical connection between the tuning module and the antenna may be electrical connection with any position in the communication link where the antenna is located.

In a specific application, since the protective cover does not necessarily have an adverse effect on the communication performance of the wireless communication device, it is necessary to further detect the signal strength and and/or bit error rate, and the working frequency of the antenna is increased only when the wireless communication device is equipped with a protective cover and the signal strength is lower than the preset strength and/or the bit error rate is higher than the preset ratio. And by repeatedly detecting the signal strength and/or bit error rate, until the signal strength is greater than or equal to the preset strength and the bit error rate is less than or equal to the preset ratio, or when the operating frequency of the antenna reaches the maximum, the maximum improvement can be achieved. Communication performance of wireless communication devices.

In specific applications, the preset intensity and preset ratio can be set according to actual needs.

In a specific application, the electrical connection refers to a communication connection implemented by cables, data buses and the like for transmitting electrical signals. The electrical signal may be a current signal, a voltage signal, or a pulse signal, or the like. The first tuning signal and the second tuning signal are electrical signals.

In this embodiment, by detecting whether the wireless communication device is covered with a protective cover, and detecting the signal strength and/or bit error rate of the communication signal sent by the antenna of the wireless communication device, the wireless communication device is covered with a protective cover and the signal strength is lower than the preset value. When the strength and/or the bit error rate is higher than the preset ratio, increasing the working frequency of the antenna can effectively eliminate the influence of the working frequency of the antenna shifting to the low frequency caused by the protective cover, and improve the communication performance of the wireless communication device .

Embodiment 2

As shown in FIG. 2 and FIG. 3 , in this embodiment, the tuning module 4 in the first embodiment includes at least one electronic switch unit 411 to 41M (exemplarily represented as electronic switch unit 411 and electronic switch unit 412 in FIG. 2 ) , . unit and an impedance unit.

As shown in FIG. 2, in this embodiment, the first electrical connection relationship between the electronic switch units 411-41M and the impedance units 421-42M and other components in the wireless communication device 100 is as follows:

The input terminals of the electronic switch units 411-41M are electrically connected to the radio frequency modules 101-10M in a one-to-one correspondence, and the controlled terminals of the electronic switch units 411-41M are electrically connected to the protective cover detection module 2 and the signal quality detection module 3, and the electronic switch unit 411 The output terminals of ˜41M are electrically connected to the input terminals of the impedance units 421˜42M in a one-to-one correspondence, and the output terminals of the impedance units 421˜42M are electrically connected to the antennas 11˜1M in a one-to-one correspondence.

As shown in FIG. 3, in this embodiment, the second electrical connection relationship between the electronic switch units 411-41M and the impedance units 421-42M and other components in the wireless communication device 100 is as follows:

The radio frequency modules 101-10M are electrically connected to the input terminals of the impedance units 421-42M in a one-to-one correspondence, and the output terminals of the impedance units 421-42M are electrically connected to the input terminals of the electronic switch units 411-41M in a one-to-one correspondence, and the electronic switch units 411-41M are electrically connected in a one-to-one correspondence. The controlled end of the electronic switch unit is electrically connected with the protective cover detection module 2 and the signal quality detection module 3, and the output ends of the electronic switch units 411-41M are electrically connected with the antennas 11-1M in one-to-one correspondence.

In this embodiment, an electronic switch and an impedance device are used to form a tuning module, so as to realize the function of adjusting the working frequency of the antenna, and the structure is simple, easy to implement, and low in cost.

Embodiment 3

In this embodiment, the electronic switch unit in the second embodiment includes at least one SPST analog switch, at least one SPDT analog switch, or at least one SPDT analog switch, and the impedance unit includes at least one resistor;

The output end of the single-pole single-throw analog switch, each output end of the single-pole double-throw analog switch, or each output end of the single-pole multi-throw analog switch is electrically connected with or a series circuit composed of at least two resistors.

In a specific application, the electronic switch unit may include at least one or a combination of a single-pole single-throw analog switch, a single-pole double-throw analog switch, and a single-pole multi-throw analog switch.

4 and 5 only exemplarily show that on the basis of the first electrical connection relationship in the second embodiment, the tuning module 4 includes two electronic switch units (the electronic switch unit 411 and the electronic switch unit 411). unit 412) and two impedance units (impedance unit 421 and impedance unit 422).

As shown in FIG. 4 , the electronic switch unit 411 exemplarily includes a SPST analog switch K1, a SPST analog switch K2, ..., a SPST analog switch KN, a total of N SPST analog switches, wherein, N≥1 and N is an integer;

The electronic switch unit 412 includes a SPST analog switch K1, a SPST analog switch K2, ..., a SPST analog switch Kn, a total of n SPST analog switches, where n≥1 and n is an integer;

The impedance unit 421 includes a resistor R1, a resistor R2, ..., a resistor RI1, ..., a resistor R1, a resistor R2, ..., a resistor RI2, ..., a resistor R1, a resistor R2, ..., a resistor RIn in total I1+I2+... ...+In resistors, where I1, I2, ..., In ≥ 1 and are integers;

The impedance unit 422 includes a resistor R1, a resistor R2,..., a resistor Ri1..., a resistor R1, a resistor R2,..., a resistor Ri2,... +in resistors, where i1, i2, ..., in ≥ 1 and are integers.

As shown in FIG. 5 , the electronic switch unit 411 exemplarily includes a single-pole, multi-throw analog switch Q1;

The electronic switch unit 412 includes a single-pole, multi-throw analog switch Q2;

The impedance unit 421 includes a resistor R1, a resistor R2,..., a resistor RI1..., a resistor R1, a resistor R2,..., a resistor RI2,..., a resistor R1, a resistor R2,... +In resistors, where I1, I2, ..., In ≥ 1 and are integers;

The impedance unit 422 includes a resistor R1, a resistor R2,..., a resistor Ri1..., a resistor R1, a resistor R2,..., a resistor Ri2,... +in resistors, where i1, i2, ..., in ≥ 1 and are integers.

Embodiment 4

As shown in FIG. 6, in this embodiment, the tuning module 4 in the first embodiment includes at least one digital potentiometer 41-4M (Fig. 6 exemplarily shows the digital potentiometer 41, the digital potentiometer 42, ... , digital potentiometer 4M a total of M digital potentiometers), each radio frequency module corresponds to a digital potentiometer;

The radio frequency modules 101-10M are electrically connected with the input terminals of the digital potentiometers 41-4M in one-to-one correspondence, and the controlled terminals of the digital potentiometers 41-4M are electrically connected with the protective sleeve detection module 2 and the signal quality detection module 3, and the digital potentiometer 41 The output terminals of ~4M are electrically connected to the antennas 11 to 1M in a one-to-one correspondence.

In specific applications, a digital potentiometer with a suitable resistance adjustment range can be selected according to actual needs. The wider the resistance adjustment range, the wider the frequency band of the antenna's operating frequency. Theoretically, the resistance of the digital potentiometer can be adjusted linearly or in steps within its resistance adjustment range. Therefore, it is also possible to realize linear adjustment or step adjustment of the operating frequency of the antenna.

In this embodiment, by using a digital potentiometer to form a tuning module, the linear adjustment or stepwise adjustment of the working frequency of the antenna can be realized, the structure is simple, the implementation is easy, and the cost is low.

Embodiment 5

As shown in FIG. 7 , this embodiment provides an antenna tuning method based on the wireless communication device 100 in any one of Embodiments 1 to 4. The antenna tuning method includes:

Step S701, controlling the protective cover detection module to detect whether the wireless communication device is covered with a protective cover;

Step S702, when the wireless communication device is sheathed with a protective cover, control the protective cover detection module to issue a first tuning signal;

Step S703, controlling the signal quality detection module to detect the signal strength and/or the bit error rate of the communication signal sent by the antenna;

Step S704, when the signal strength is lower than a preset strength and/or the bit error rate is higher than a preset ratio, control the signal quality detection module to send out a second tuning signal.

In a specific application, the antenna tuning method may be specifically performed by a baseband chip or a processor of a wireless communication device, and the processor may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In this embodiment, by detecting whether the wireless communication device is covered with a protective cover, and detecting the signal strength and/or bit error rate of the communication signal sent by the antenna of the wireless communication device, the wireless communication device is covered with a protective cover and the signal strength is lower than the preset value. When the strength and/or the bit error rate is higher than the preset ratio, increasing the working frequency of the antenna can effectively eliminate the influence of the working frequency of the antenna shifting to the low frequency caused by the protective cover, and improve the communication performance of the wireless communication device .

It should be understood that the size of the sequence numbers of the steps in the above embodiments does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Embodiment 6

As shown in FIG. 8 , this embodiment provides an antenna tuning system 8 for performing the method steps in Embodiment 5. The antenna tuning system 8 may be the wireless communication device 100 in any one of Embodiments 1 to 4. In the software program system, the antenna tuning system 8 includes:

a first control module 801, configured to control the protective cover detection module to detect whether the wireless communication device is covered with a protective cover;

A second control module 802, configured to control the protective cover detection module to send out a first tuning signal when the wireless communication device is fitted with a protective cover;

A third control module 803, configured to control the signal quality detection module to detect the signal strength and/or the bit error rate of the communication signal sent by the antenna;

The fourth control module 804 is configured to control the signal quality detection module to send a second tuning signal when the signal strength is lower than a preset strength and/or the bit error rate is higher than a preset ratio.

In specific applications, the first control module, the second control module, the third control module and the fourth control module may be logic circuits, chips or devices that exist independently or are integrated in a baseband chip or processor of a wireless communication device. The processor may be a central processing unit (Central Processing Unit, CPU), other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), ready-made Field-Programmable GateArray (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In this embodiment, by detecting whether the wireless communication device is covered with a protective cover, and detecting the signal strength and/or bit error rate of the communication signal sent by the antenna of the wireless communication device, the wireless communication device is covered with a protective cover and the signal strength is lower than the preset value. When the strength and/or the bit error rate is higher than the preset ratio, increasing the working frequency of the antenna can effectively eliminate the influence of the working frequency of the antenna shifting to the low frequency caused by the protective cover, and improve the communication performance of the wireless communication device .

Embodiment 7

As shown in FIG. 9 , this embodiment provides a wireless communication device 9, which includes: the antenna tuning circuit 10 in any one of Embodiments 1 to 4, and further includes a processor 90, a memory 91, and a A computer program 92 in memory 91 and executable on said processor 90, such as an antenna tuning program. When the processor 90 executes the computer program 92 , the steps in each of the foregoing antenna tuning method embodiments are implemented, for example, steps S701 to S704 shown in FIG. 7 . Alternatively, when the processor 90 executes the computer program 92 , the functions of the modules in the foregoing device embodiments, such as the functions of the modules 801 to 804 shown in FIG. 8 , are implemented.

Exemplarily, the computer program 92 may be divided into one or more modules, and the one or more modules are stored in the memory 91 and executed by the processor 90 to complete the present application. The one or more modules may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program 92 in the wireless communication device 9 . For example, the computer program 92 can be divided into a first control module, a second control module, a third control module and a fourth control module, and the specific functions of each module are as follows:

a first control module, configured to control the protective cover detection module to detect whether the wireless communication device is covered with a protective cover;

a second control module, configured to control the protective cover detection module to send out a first tuning signal when the wireless communication device is equipped with a protective cover;

a third control module, configured to control the signal quality detection module to detect the signal strength and/or the bit error rate of the communication signal sent by the antenna;

A fourth control module, configured to control the signal quality detection module to send out a second tuning signal when the signal strength is lower than a preset strength and/or the bit error rate is higher than a preset ratio.

The wireless communication device 9 may be a computing device such as a notebook computer and a palmtop computer. The wireless communication device may include, but is not limited to, a processor 90 and a memory 91 . Those skilled in the art can understand that FIG. 9 is only an example of the wireless communication device 9, and does not constitute a limitation on the wireless communication device 9, and may include more or less components than the one shown, or combine some components, or different components, for example, the wireless communication device may also include input and output devices, network access devices, buses, and the like.

The so-called processor 90 may be a central processing unit (Central Processing Unit, CPU), and may also be other general-purpose processors, digital signal processors (Digital Signal Processors, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 91 may be an internal storage unit of the wireless communication device 9 , such as a hard disk or a memory of the wireless communication device 9 . The memory 91 may also be an external storage device of the wireless communication device 9, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) equipped on the wireless communication device 9. ) card, flash card (Flash Card) and so on. Further, the memory 91 may also include both an internal storage unit of the wireless communication device 9 and an external storage device. The memory 91 is used to store the computer program and other programs and data required by the wireless communication device. The memory 91 can also be used to temporarily store data that has been output or will be output.

Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. Module completion, that is, dividing the internal structure of the device into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated in one processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit, and the above-mentioned integrated units may adopt hardware. It can also be realized in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application. For the specific working processes of the units and modules in the above-mentioned system, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the foregoing embodiments, the description of each embodiment has its own emphasis. For parts that are not described or described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In the embodiments provided in this application, it should be understood that the disclosed wireless communication devices, systems and methods may be implemented in other manners. For example, the wireless communication device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be Incorporation may either be integrated into another system, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated modules, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the present application can implement all or part of the processes in the methods of the above embodiments, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer When the program is executed by the processor, the steps of the foregoing method embodiments can be implemented. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form, and the like. The computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, RandomAccess Memory), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable media may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer-readable media Electric carrier signals and telecommunication signals are not included.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should understand that: it can still be used for the above-mentioned implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the application, and should be included in the within the scope of protection of this application.

Claims (10)

1. An antenna tuning circuit for use in a wireless communication device, the wireless communication device including at least one radio frequency module, the antenna tuning circuit comprising:

each radio frequency module corresponds to one antenna;

the wireless communication equipment comprises a wireless communication equipment, a protective sleeve detection module and a tuning module, wherein the wireless communication equipment is sleeved with the protective sleeve, the protective sleeve detection module is used for detecting whether the wireless communication equipment is sleeved with the protective sleeve or not and sending a first tuning signal when the wireless communication equipment is sleeved with the protective sleeve, the protective sleeve detection module comprises a software program module in a system setting program of the wireless communication equipment, and a user sets to detect whether the wireless communication equipment is sleeved with the protective sleeve or not through a man-machine interaction mode;

the signal quality detection module is used for detecting the signal intensity and/or the error rate of the communication signal sent by the antenna and sending a second tuning signal when the signal intensity is lower than the preset intensity and/or the error rate is higher than the preset ratio; and

and the tuning module is electrically connected with the radio frequency module, the antenna, the protective sleeve detection module and the signal quality detection module respectively and is used for increasing the working frequency of the antenna when receiving the first tuning signal and the second tuning signal until the signal intensity of the communication signal sent by the antenna is greater than or equal to the preset intensity and the error rate is less than or equal to the preset ratio, or the working frequency of the antenna reaches the maximum.

2. The antenna tuning circuit of claim 1, wherein the at least one radio frequency module comprises at least one of a GPS module, a WiFi module, a bluetooth module, a GSM module, and an NFC module.

3. The antenna tuning circuit of claim 2, wherein the at least one radio frequency module comprises a GPS module, and wherein the GPS module corresponds to an antenna having a minimum operating frequency in the L1 band.

4. The antenna tuning circuit of claim 1, wherein the antenna is a monopole antenna or an IFA.

5. The antenna tuning circuit of any of claims 1-4, wherein the tuning module comprises at least one electronic switch unit and at least one impedance unit, one electronic switch unit and one impedance unit for each of the radio frequency modules;

the input end of the electronic switch unit is electrically connected with the corresponding radio frequency module, the controlled end of the electronic switch unit is electrically connected with the protective sleeve detection module and the signal quality detection module, the output end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the input end of the impedance unit corresponding to the radio frequency module, and the output end of the impedance unit corresponding to the radio frequency module is electrically connected with the antenna corresponding to the radio frequency module;

or, the radio frequency module is electrically connected with the input end of the corresponding impedance unit, the output end of the impedance unit corresponding to the radio frequency module is electrically connected with the input end of the electronic switch unit corresponding to the radio frequency module, the controlled end of the electronic switch unit is electrically connected with the protective sleeve detection module and the signal quality detection module, and the output end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the antenna corresponding to the radio frequency module.

6. The antenna tuning circuit of claim 5, wherein the electronic switching unit comprises at least one single-pole single-throw analog switch, at least one single-pole double-throw analog switch, or at least one single-pole multiple-throw analog switch, the impedance unit comprises at least one resistance;

the output end of the single-pole single-throw analog switch, each output end of the single-pole double-throw analog switch or each output end of the single-pole multi-throw analog switch is electrically connected with or at least two series circuits formed by the resistors.

7. The antenna tuning circuit of any of claims 1-4, wherein the tuning module comprises at least one digital potentiometer, one digital potentiometer for each radio frequency module;

the input end of the digital potentiometer corresponding to the radio frequency module is electrically connected with the radio frequency module, the controlled end of the digital potentiometer is electrically connected with the protective sleeve detection module and the signal quality detection module, and the output end of the digital potentiometer corresponding to the radio frequency module is electrically connected with the antenna corresponding to the radio frequency module.

8. An antenna tuning method applied to a wireless communication device including the antenna tuning circuit of any one of claims 1 to 7, the antenna tuning method comprising:

controlling the protective sleeve detection module to detect whether the wireless communication equipment is sleeved with a protective sleeve or not, wherein the protective sleeve detection module comprises a software program module in a system setting program of the wireless communication equipment, and a user sets the detection result to detect whether the wireless communication equipment is sleeved with the protective sleeve or not through a man-machine interaction mode;

when the wireless communication equipment is sleeved with a protective sleeve, controlling the protective sleeve detection module to send out a first tuning signal;

controlling the signal quality detection module to detect the signal strength and/or the bit error rate of the communication signal sent by the antenna;

and controlling the signal quality detection module to send out a second tuning signal when the signal intensity is lower than a preset intensity and/or the error rate is higher than a preset ratio.

9. An antenna tuning system for use in a wireless communication device including an antenna tuning circuit as claimed in any one of claims 1 to 7, the antenna tuning system comprising:

the first control module is used for controlling the protective sleeve detection module to detect whether the wireless communication equipment is sleeved with a protective sleeve or not, the protective sleeve detection module comprises a software program module in a system setting program of the wireless communication equipment, and a user sets the detection result to detect whether the wireless communication equipment is sleeved with the protective sleeve or not through a man-machine interaction mode;

the second control module is used for controlling the protective sleeve detection module to send out a first tuning signal when the wireless communication equipment is sleeved with the protective sleeve;

the third control module is used for controlling the signal quality detection module to detect the signal intensity and/or the bit error rate of the communication signal sent by the antenna;

and the fourth control module is used for controlling the signal quality detection module to send out a second tuning signal when the signal intensity is lower than a preset intensity and/or the error rate is higher than a preset ratio.

10. A wireless communication device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the steps of the method of claim 8 are implemented when the computer program is executed by the processor.

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