CN112909581B - Mobile terminal, antenna system and control method thereof - Google Patents
Mobile terminal, antenna system and control method thereof Download PDFInfo
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- CN112909581B CN112909581B CN202110120892.9A CN202110120892A CN112909581B CN 112909581 B CN112909581 B CN 112909581B CN 202110120892 A CN202110120892 A CN 202110120892A CN 112909581 B CN112909581 B CN 112909581B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a mobile terminal, an antenna system and a control method thereof, wherein the antenna system comprises an antenna module, a signal processing module and a control module; the signal processing module, the control module and the antenna module are connected in sequence; the signal processing module is used for identifying the current working frequency band of the mobile terminal according to the current radio frequency signal of the mobile terminal and outputting a control signal to the control module according to the current working frequency band; the control module is used for determining conductors in the antenna module according to the control signals to obtain an antenna radiator with a shape matched with the current working frequency band; according to the invention, the antenna module is controlled by the signal processing module and the control module, and the antenna radiator with a corresponding shape can be selected according to different working frequency bands of the mobile terminal, so that the matching degree of the antenna in different frequency bands is greatly improved, the realized antenna performance is more suitable for the frequency bands, and the antenna performance is further improved as a whole.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a mobile terminal, an antenna system, and a control method thereof.
Background
In a wireless communication device, an antenna device that transmits and receives radio waves for transferring an exchange radio data signal is certainly one of the most important components in the wireless communication device.
The conventional antenna is designed, the antenna radiator is fixed and does not change after the design is finished, the same antenna radiator needs to cover all working frequency bands and working scenes, the performance of the antenna radiator cannot be changed according to different working frequency bands, and the performance of the antenna radiator cannot be optimized in all frequency bands; if the tuning device is used for changing the matching of the antennas used in different frequency bands, the bandwidth of the antenna is expanded to improve the performance of the antenna, but the tuning device has a limited tuning frequency range, can be applied to a very limited frequency band, only improves the performance of the antenna in partial frequency bands or scenes, and can not match the required performance of the antenna in each frequency band.
There is thus a need for improvements and improvements in the art.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a mobile terminal, an antenna system and a control method thereof, which can effectively solve the problem that the performance of the antenna radiator cannot be matched with the antenna performance required by each frequency band due to no change in the fixing of the antenna radiator in the existing design.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an antenna system comprises an antenna module, a signal processing module and a control module; the signal processing module is connected with the control module, and the control module is connected with the antenna module; the signal processing module is used for identifying the current working frequency band of the mobile terminal according to the current radio frequency signal of the mobile terminal and outputting a control signal to the control module according to the current working frequency band; the control module is used for determining conductors in the antenna module according to the control signals to obtain the antenna radiator with the shape matched with the current working frequency band.
In the antenna system, the control module is specifically configured to determine the number of conductors in the antenna module according to the control signal, so as to obtain an antenna radiator with a shape matching the current working frequency band.
In the antenna system, the antenna module includes k antenna units arranged in a matrix of m×n, k and m are positive integers greater than 1, and n is a positive integer greater than or equal to 1; the control module is specifically configured to determine, when power is supplied to i adjacent antenna units according to the control signal, that i adjacent antenna units that obtain power are conductors, where i is a positive integer greater than or equal to 1 and less than or equal to k.
The antenna system also comprises a receiving and transmitting module; the receiving and transmitting module is respectively connected with the signal processing module and the antenna module; the transceiver module is used for transmitting radio frequency signals between the signal processing module and the antenna module.
The antenna system also comprises a radio frequency front end module, wherein the radio frequency front end module is respectively connected with the transceiver module and the antenna module; the radio frequency front end module is used for transmitting radio frequency signals between the transceiver module and the antenna module.
In the antenna system, the signal processing module comprises a baseband chip, and the baseband chip is connected with the control module.
The control method based on the antenna system comprises the following steps:
the signal processing module recognizes the current working frequency band of the mobile terminal according to the current radio frequency signal of the mobile terminal, and outputs a control signal to the control module according to the current working frequency band;
and determining a conductor in the antenna module by the control module according to the control signal to obtain the antenna radiator with the shape matched with the current working frequency band.
In the method for controlling an antenna system, the step of determining, by the control module, a conductor in the antenna module according to the control signal, to obtain an antenna radiator having a shape matching with a current operating frequency band specifically includes:
and determining the number of conductors in the antenna module by the control module according to the control signal to obtain the antenna radiator with the shape matched with the current working frequency band.
In the method for controlling an antenna system, the antenna module includes k antenna units arranged in a matrix of m×n, k and m are positive integers greater than 1, and n is a positive integer greater than or equal to 1; the step of determining, by the control module, the number of conductors in the antenna module based on the control signal specifically includes:
and when the control module provides electric energy for i adjacent antenna units according to the control signal, determining that the i adjacent antenna units obtaining the electric energy are conductors, wherein i is a positive integer greater than or equal to 1 and less than or equal to k.
The mobile terminal is characterized by comprising the antenna system.
Compared with the prior art, the mobile terminal, the antenna system and the control method thereof provided by the invention have the advantages that the antenna system comprises an antenna module, a signal processing module and a control module; the signal processing module is connected with the control module, and the control module is connected with the antenna module; the signal processing module is used for identifying the current working frequency band of the mobile terminal according to the current radio frequency signal of the mobile terminal and outputting a control signal to the control module according to the current working frequency band; the control module is used for determining conductors in the antenna module according to the control signals to obtain an antenna radiator with a shape matched with the current working frequency band; according to the invention, the antenna module is controlled by the signal processing module and the control module, and the antenna radiator with a corresponding shape can be selected according to different working frequency bands of the mobile terminal, so that the matching degree of the antenna in different frequency bands is greatly improved, the realized antenna performance is more suitable for the frequency bands, and the antenna performance is further improved as a whole.
Drawings
Fig. 1 is a block diagram of an antenna system according to the present invention;
fig. 2 is a schematic diagram of an antenna module in the antenna system according to the present invention;
fig. 3 is a flowchart of a control method of an antenna system provided by the present invention.
Detailed Description
The invention provides a mobile terminal, an antenna system and a control method thereof, which can effectively solve the problem that the performance of an antenna radiator cannot be matched with the antenna performance required by each frequency band because the fixing of the antenna radiator of the existing design is not changed.
In order to make the objects, technical solutions and effects of the present invention clearer and more specific, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The invention will be further described by the description of embodiments with reference to the accompanying drawings.
Referring to fig. 1, an antenna system provided by the present invention includes an antenna module 300, a signal processing module 100 and a control module 200; wherein the signal processing module 100 is connected with the control module 200, and the control module 200 is connected with the antenna module 300; the signal processing module 100 is configured to identify a current operating frequency band of a mobile terminal according to a current radio frequency signal of the mobile terminal, and output a control signal to the control module 200 according to the current operating frequency band; the control module 200 is configured to determine a conductor in the antenna module 300 according to the control signal to obtain an antenna radiator 600 with a shape matching with a current working frequency band, and the invention directly and effectively changes antenna characteristics such as impedance and resonant frequency of the antenna by directly changing the shape of the antenna radiator 600, thereby realizing tuning of antenna performance in different frequency bands and enabling the antenna performance to be better.
In a specific implementation, the signal processing module 100 may identify a current working frequency band according to a current radio frequency signal of the mobile terminal, so that in order to obtain an antenna performance matched with the current working frequency band, the signal processing module 100 outputs a control signal to the control module 200, and the control module 200 controls a conductor in the antenna module 300 according to the control signal, so that the antenna module 300 obtains an antenna radiator 600 with a shape matched with the current working frequency band, and the matching of the antenna radiator 600 and the current working frequency band is realized, thereby ensuring that the antenna performance of an antenna radiation problem is optimal; compared with the existing antenna design, the antenna module 300 in the invention can select the antenna radiator 600 with the shape matched with the current working frequency band according to the current working frequency band of the mobile terminal, thereby effectively realizing the change of the shape of the antenna radiator 600, further solving the problem that the performance of the antenna radiator 600 cannot be matched with the antenna performance required by each frequency band due to the fact that the antenna radiator 600 is fixed and is not changed any more in the existing design, realizing the tuning of the antenna performance under different frequency bands, and leading the antenna performance to be better.
Further, the control module 200 is specifically configured to determine, according to the control signal, the number of conductors in the antenna module 300, so as to obtain an antenna radiator 600 with a shape matching the current working frequency band; the signal processing module 100 may identify the current operating frequency band according to the current rf signal of the mobile terminal, so that in order to obtain the antenna performance matched with the current operating frequency band, the signal processing module 100 outputs a control signal to the control module 200, and the control module 200 controls the number of conductors in the antenna module 300 according to the control signal, so that the antenna module 300 obtains the antenna radiator 600 with a shape matched with the current operating frequency band, and the matching between the antenna radiator 600 and the current operating frequency band is achieved, thereby ensuring the optimal antenna performance of the antenna radiation problem.
In particular, referring to fig. 2, the antenna module 300 includes k antenna units 310 arranged in a matrix of m×n, where k and m are positive integers greater than 1, and n is a positive integer greater than or equal to 1; the control module 200 is specifically configured to determine that i adjacent antenna units 310 that obtain electric energy are conductors when the i adjacent antenna units 310 are supplied with electric energy according to the control signal, where i is a positive integer greater than or equal to 1 and less than or equal to k.
The antenna module 300 in this embodiment includes a plurality of antenna units 310 arranged in a matrix, each of the antenna units 310 is in a sheet shape and can be bent to a certain extent, and the whole of the antenna module 300 obtained by connection is also in a sheet shape and can be bent; the antenna module 300 may be attached or fixed to a housing or a stand of the mobile terminal when mounted. The size and function of each of the antenna units 310 are the same, in this embodiment, each of the antenna units 310 is quadrilateral, each of the antenna units 310 is controlled by a separate voltage, and the operations of the antenna units 310 are independent of each other, i.e. do not affect each other. The antenna unit 310 exhibits a conductor characteristic to realize an antenna radiation function when it is powered on, whereas the antenna module 300 exhibits a non-conductor characteristic when it is not powered on, without an antenna radiation function; for example, when a voltage is applied to each of the antenna elements 310, the antenna elements 310 exhibit a conductor characteristic that may be used to perform the function of the antenna radiator 600, and when no voltage or low voltage is applied, the antenna elements exhibit an insulator characteristic that is not conductive.
The control module 200 determines the number of conductors in the antenna module 300, i.e. which of the antenna elements 310 receive power and which of the antenna elements 310 do not receive power, based on the control signal; wherein two or more adjacent antenna units 310 may be mutually conducted when simultaneously exhibiting conductor characteristics; thus, the control module 200 determines that i adjacent antenna units 310 are conductors according to the control signal, and the i adjacent antenna units 310 form an integral antenna radiator 600; when the control module 200 selects different numbers of the antenna units 310 to supply power, the shapes of the corresponding antenna radiators 600 are different. The control signal received by the control module 200 is obtained according to the signal processing module 100, and the control signal output by the signal processing module 100 is obtained according to the current working frequency band, so that according to the difference of the current working frequency band of the mobile terminal, different numbers of antenna units 310 can be controlled to obtain different shapes of the antenna radiator 600, the different working frequency bands are matched with the different shapes of the antenna radiator 600, the antenna characteristics such as the impedance, the resonant frequency and the like of the antenna are directly and effectively changed by changing the shape of the antenna radiator 600, and tuning of the antenna performance under different frequency bands is realized, so that the antenna performance is better.
For example, each antenna unit 310 has a square shape with a side length of 10mm, when the current working frequency band of the mobile terminal is 900MHz, 8 wireless units may be selected to form a linear antenna radiator 600 with a length of 80mm, and when the current working frequency band of the mobile terminal is 700MHz, 10 antenna units 310 may be selected to form a linear antenna radiator 600 with a length of 100 mm; for another example, when the mobile terminal operates in the B1 band, the antenna radiator 600 is in a straight line shape, and when the mobile terminal operates in the B4 band, the antenna radiator 600 is in two branches, so that the antenna radiator 600 may be in a T shape or an L shape, where it can be understood that the shape of the antenna radiator 600 is similar to the shape presented in the "russian square", and what shape is specifically selected is determined according to the control signal output by the signal processing module 100, and the control signal output by the processing module is determined by the current operating band of the mobile terminal, and in order to obtain the antenna performance matched with the current operating band, the signal processing module 100 controls the control module 200 to determine the number of conductors in the antenna module 300, so that the antenna radiator 600 is in a shape matched with the current operating band, and the matching of the antenna radiator 600 with the current operating band is achieved, so as to ensure that the antenna performance of the antenna radiation problem is optimal.
Further, with continued reference to fig. 1, the antenna system further includes a transceiver module 400; the transceiver module 400 is connected to the signal processing module 100 and the antenna module 300, respectively; the transceiver module 400 is configured to transmit radio frequency signals between the signal processing module 100 and the antenna module 300; specifically, the signal processing module 100 is configured to identify a current operating frequency band according to a current radio frequency signal of the mobile terminal, and is further configured to receive and transmit the radio frequency signal, thereby completing a communication function of the mobile terminal. In this embodiment, the receiving module corresponds to a modem, when the mobile terminal sends a communication signal, the signal processing module 100 outputs a radio frequency signal to the transceiver module 400, the transceiver module 400 modulates the radio frequency signal and then outputs the radio frequency signal to the antenna module 300, the antenna module 300 obtains the antenna radiator 600 corresponding to the current working frequency band under the control of the control module 200, and each antenna unit 310, that is, a conductor in the antenna radiator 600 is mutually conducted with a feeder line on the radio frequency circuit, so as to send the radio frequency signal modulated by the transceiver. When the mobile terminal receives a communication signal, the antenna radiator 600 receives an external radio frequency signal and outputs the radio frequency signal to the transceiver module 400, and the transceiver module 400 demodulates the radio frequency signal and outputs the demodulated radio frequency signal to the signal processing module 100, thereby realizing the function of receiving and transmitting the radio frequency signal.
Further, the antenna system further includes a radio frequency front end module 500, where the radio frequency front end module 500 is connected to the transceiver module 400 and the antenna module 300 respectively; the rf front-end module 500 is configured to transmit rf signals between the transceiver module 400 and the antenna module 300; when the mobile terminal sends a communication signal, the signal processing module 100 outputs a radio frequency signal to the transceiver module 400 at this time, the transceiver module 400 modulates the radio frequency signal and then outputs the radio frequency signal to the radio frequency front end module 500, the radio frequency front end module 500 processes the radio frequency signal and then outputs the processed radio frequency signal to the antenna module 300, the antenna module 300 obtains the antenna radiator 600 corresponding to the current working frequency band shape under the control of the control module 200, and each antenna unit 310 in the antenna radiator 600, that is, a conductor is mutually conducted with a feeder line on the radio frequency circuit, and the radio frequency signal processed by the radio frequency front end module 500 is sent out. When the mobile terminal receives a communication signal, the antenna radiator 600 receives an external radio frequency signal at this time and outputs the radio frequency signal to the radio frequency front end module 500, the radio frequency front end module 500 outputs the radio frequency signal to the transceiver module 400, and the transceiver module 400 demodulates the radio frequency signal and outputs the demodulated radio frequency signal to the signal processing module 100, thereby realizing the function of receiving and transmitting the radio frequency signal.
Specifically, in this embodiment, the rf front-end module 500 may be a power amplifier, when the mobile terminal transmits a communication signal, the signal processing module 100 outputs a radio frequency signal to the transceiver module 400 at this time, the transceiver module 400 modulates the radio frequency signal and outputs the radio frequency signal to the power amplifier, the power amplifier amplifies the radio frequency signal and outputs the radio frequency signal to the antenna module 300, the antenna module 300 obtains the antenna radiator 600 corresponding to the shape of the current working frequency band under the control of the control module 200, and the radio frequency signal amplified by the antenna radiator 600 is transmitted.
The rf front-end module 500 may also be a filter, when the mobile terminal receives a communication signal, the antenna radiator 600 receives an external rf signal at this time, outputs the rf signal to the filter, filters the rf signal by the filter, outputs the filtered rf signal to the transceiver module 400, demodulates the rf signal by the transceiver module 400, and outputs the demodulated rf signal to the signal processing module 100, thereby implementing the function of receiving and transmitting the rf signal, and after filtering the rf signal by the filter, only retains the signal required by the current communication, filters the interference and clutter signals, and ensures the stability and reliability of information transmission.
Further, the signal processing module 100 includes a baseband chip, and the baseband chip is connected to the control module 200. The baseband chip is equivalent to a CPU (Central Processing Unit/Processor: central processing unit) of the mobile terminal, and each radio frequency signal of the mobile terminal during communication can enter the baseband chip or be sent out from the baseband chip; the baseband chip in this embodiment can receive and transmit radio frequency signals on one hand, and control the shape of the antenna radiator 600 of the antenna module 300 according to the radio frequency signals on the other hand. Specifically, when the mobile terminal sends a communication signal, the baseband chip outputs a radio frequency signal to the transceiver module 400 at this time, the transceiver module 400 modulates the radio frequency signal and then outputs the radio frequency signal to the radio frequency front end module 500, the radio frequency front end module 500 amplifies the radio frequency signal and then outputs the amplified radio frequency signal to the antenna module 300, and the antenna module 300 obtains the antenna radiator 600 corresponding to the current working frequency band shape under the control of the control module 200, and the radio frequency signal amplified by the antenna radiator 600 is sent out; when the mobile terminal receives a communication signal, the antenna radiator 600 receives an external radio frequency signal and outputs the radio frequency signal to the radio frequency front end module 500, the radio frequency front end module 500 outputs the radio frequency signal to the transceiver module 400, and at this time, the transceiver module 400 demodulates the radio frequency signal and outputs the demodulated radio frequency signal to the baseband chip, thereby realizing the function of receiving and transmitting the radio frequency signal; meanwhile, the baseband chip identifies the current working frequency band of the radio frequency signal of the mobile terminal, outputs a corresponding control signal to the control module 200 according to the current working frequency band, and the control module 200 controls the conductors in the antenna module 300 according to the control signal, so as to obtain the antenna radiator 600 with the shape matched with the current working frequency band, realize the matching of the antenna radiator 600 and the current working frequency band, and ensure the optimal antenna performance of the antenna radiation problem.
The shape of the antenna conductor directly solves the characteristics of impedance, resonant frequency and the like of the antenna, and is the most main factor for realizing the antenna performance, in the invention, when the current working frequency band of the mobile terminal is identified through the signal baseband chip, a control signal is output to the control module 200, the number of conductors in the antenna module 300 is determined by the control module 200, and then the antenna radiator 600 with different shapes is obtained, namely, the antenna system in the invention can select the antenna radiator 600 with corresponding shapes according to the different working frequency bands of the mobile terminal, the matching degree of the antenna in different frequency bands is greatly improved, the realized antenna performance is more suitable for different frequency bands and different scenes, and the antenna performance is further improved as a whole.
Further, the present invention also provides a control method of an antenna system, where the control method is based on the above antenna system, referring to fig. 3, and the control method of an antenna system includes the following steps:
s100, a signal processing module recognizes the current working frequency band of the mobile terminal according to the current radio frequency signal of the mobile terminal, and outputs a control signal to a control module according to the current working frequency band;
and S200, determining a conductor in the antenna module by the control module according to the control signal to obtain the antenna radiator with the shape matched with the current working frequency band.
According to the invention, the signal processing module recognizes the current working frequency band of the mobile terminal according to the current radio frequency signal of the mobile terminal, and outputs the control signal to the control module according to the current working frequency band, the control module determines the conductor in the antenna module according to the control signal, so that the antenna radiator with the shape matched with the current working frequency band is obtained, which is equivalent to directly and effectively changing the antenna characteristics such as impedance, resonant frequency and the like of the antenna by directly changing the shape of the antenna radiator, thereby realizing tuning of the antenna performance under different frequency bands and leading the antenna performance to be better.
Further, the step S200 specifically includes: s210, determining the number of conductors in the antenna module by the control module according to the control signal to obtain the antenna radiator with the shape matched with the current working frequency band.
Further, the antenna module includes k antenna elements arranged in a matrix of m×n, where k and m are positive integers greater than 1, and n is a positive integer greater than or equal to 1, and the step S210 includes: and when the control module provides electric energy for i adjacent antenna units according to the control signal, determining that the i adjacent antenna units obtaining the electric energy are conductors, wherein i is a positive integer greater than or equal to 1 and less than or equal to k.
In this embodiment, the size and the function of each antenna unit are the same, in this embodiment, each antenna unit is quadrilateral, each antenna unit is controlled by a separate voltage, and the operations of the antenna units are independent of each other, that is, they do not affect each other. The antenna unit is characterized in that the antenna unit is in a conductor characteristic to realize an antenna radiation function when being powered on, otherwise, the antenna module is in a non-conductor characteristic when not being powered on, and the antenna unit is free of the antenna radiation function; for example, when a voltage is applied to each of the antenna elements, the antenna elements exhibit conductor characteristics that can be used to perform the function of an antenna radiator, and when no voltage or low voltage is applied, the antenna elements exhibit insulator characteristics and are not conductive; wherein two or more adjacent antenna units can be mutually conducted when simultaneously presenting conductor characteristics; the control module determines i adjacent antenna units as conductors according to the control signals, and the i adjacent antenna units form an integral antenna radiator; when the control module selects different numbers of antenna units to supply power, the shapes of the corresponding antenna radiators are different, so that the antenna radiators with corresponding shapes are selected according to different working frequency bands, and the matching degree of the antenna module in different frequency bands is greatly improved.
Based on the antenna system, the invention also correspondingly provides a mobile terminal, wherein the antenna system is arranged in the mobile terminal, and the antenna system antenna module, the signal processing module and the control module are arranged in the mobile terminal; the antenna module comprises a plurality of antenna units which are arranged in a matrix, wherein each antenna unit is in a sheet shape and can be bent to a certain extent, and the whole antenna module obtained by connection is also in a sheet shape and can be bent; the antenna module may be attached or fixed to the housing of the mobile terminal when mounted.
The signal processing module is used for identifying the current working frequency band of the mobile terminal according to the current radio frequency signal of the mobile terminal and outputting a control signal to the control module according to the current working frequency band; the control module is used for determining conductors in the antenna module according to the control signals to obtain the antenna radiator with the shape matched with the current working frequency band, namely, the mobile terminal can select the antenna radiator with the corresponding shape according to the different working frequency bands, so that the matching degree of the antenna module in different frequency bands is greatly improved, the realized antenna performance is more suitable for the frequency bands, and the antenna performance is further improved as a whole. Since the antenna system is described in detail above, a detailed description thereof is omitted.
In summary, the present invention provides a mobile terminal, an antenna system and a control method thereof, where the antenna system includes an antenna module, a signal processing module and a control module; the signal processing module is connected with the control module, and the control module is connected with the antenna module; the signal processing module is used for identifying the current working frequency band of the mobile terminal according to the current radio frequency signal of the mobile terminal and outputting a control signal to the control module according to the current working frequency band; the control module is used for determining conductors in the antenna module according to the control signals to obtain an antenna radiator with a shape matched with the current working frequency band; according to the invention, the antenna module is controlled by the signal processing module and the control module, and the antenna radiator with a corresponding shape can be selected according to different working frequency bands of the mobile terminal, so that the matching degree of the antenna in different frequency bands is greatly improved, the realized antenna performance is more suitable for the frequency bands, and the antenna performance is further improved as a whole.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present invention and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the following claims.
Claims (5)
1. An antenna system is characterized by comprising an antenna module, a signal processing module and a control module; the signal processing module is connected with the control module, and the control module is connected with the antenna module; the signal processing module is used for identifying the current working frequency band of the mobile terminal according to the current radio frequency signal of the mobile terminal and outputting a control signal to the control module according to the current working frequency band; the control module is used for determining conductors in the antenna module according to the control signals to obtain an antenna radiator with a shape matched with the current working frequency band;
the device also comprises a transceiver module; the receiving and transmitting module is respectively connected with the signal processing module and the antenna module; the receiving and transmitting module is used for transmitting radio frequency signals between the signal processing module and the antenna module;
the system also comprises a radio frequency front-end module; the radio frequency front end module is respectively connected with the transceiver module and the antenna module; the radio frequency front end module is used for transmitting radio frequency signals between the transceiver module and the antenna module;
each antenna unit is controlled by an independent voltage, and the work among the antenna units is independent; the antenna unit is characterized by being conductive when being powered on, and being nonconductive when not being powered on;
the antenna module comprises k antenna units which are arranged in a matrix of m x n, wherein k and m are positive integers which are larger than 1, and n is a positive integer which is larger than or equal to 1; the control module is specifically configured to determine, when power is supplied to i adjacent antenna units according to the control signal, that i adjacent antenna units that obtain power are conductors, where i is a positive integer greater than or equal to 1 and less than or equal to k.
2. The antenna system according to claim 1, wherein the control module is specifically configured to determine the number of conductors in the antenna module according to the control signal, so as to obtain an antenna radiator with a shape matching the current operating frequency band.
3. The antenna system according to any of claims 1-2, wherein the signal processing module comprises a baseband chip, the baseband chip being connected to the control module.
4. A control method based on the antenna system of claim 1, characterized by comprising the steps of:
the signal processing module recognizes the current working frequency band of the mobile terminal according to the current radio frequency signal of the mobile terminal, and outputs a control signal to the control module according to the current working frequency band;
determining a conductor in the antenna module by the control module according to the control signal to obtain an antenna radiator with a shape matched with the current working frequency band;
determining the number of conductors in the antenna module by the control module according to the control signal to obtain an antenna radiator with a shape matched with the current working frequency band;
each antenna unit is controlled by an independent voltage, and the work among the antenna units is independent; the antenna unit is characterized by being conductive when being powered on, and being nonconductive when not being powered on;
the antenna module comprises k antenna units which are arranged in a matrix of m x n, wherein k and m are positive integers which are larger than 1, and n is a positive integer which is larger than or equal to 1; the step of determining, by the control module, the number of conductors in the antenna module based on the control signal specifically includes:
and when the control module provides electric energy for i adjacent antenna units according to the control signal, determining that the i adjacent antenna units obtaining the electric energy are conductors, wherein i is a positive integer greater than or equal to 1 and less than or equal to k.
5. A mobile terminal comprising the antenna system of any of claims 1-3.
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