CN106656055A - Impedance matching device and method for terminal power amplifier - Google Patents
Impedance matching device and method for terminal power amplifier Download PDFInfo
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- CN106656055A CN106656055A CN201611073935.8A CN201611073935A CN106656055A CN 106656055 A CN106656055 A CN 106656055A CN 201611073935 A CN201611073935 A CN 201611073935A CN 106656055 A CN106656055 A CN 106656055A
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- impedance matching
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- power
- running parameters
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
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Abstract
The invention discloses an impedance matching device and method for a terminal power amplifier. The device comprises a power amplifier (PA), a PA operating parameter detection module, a storage module, a tunable impedance matching network and an impedance matching network control circuit, wherein the PA operating parameter detection module is used for acquiring the operating parameter of the PA, and the operating parameter of the PA comprises the operating temperature of the PA; the storage module is used for storing the operating parameter of the PA and the impedance matching network parameter which is matched with the operating parameter of the PA; and the impedance matching network control circuit is used for controlling the tunable impedance matching network to work with the matched impedance matching network parameter after acquiring the matched impedance matching network parameter from the storage module according to the operating parameter of the PA. According to the technical scheme disclosed by the invention, the impedance matching of the PA can be maintained.
Description
Technical field
The present invention relates to the impedance-matching art of power amplifier, espespecially a kind of terminal power amplifier impedance-matching device
And method.
Background technology
With the popularization of 4G intelligent mobile terminals and enriching for function, its power consumption is also being continuously increased, intelligent mobile end
The length in end cruising time affects the experience of user, so in this area, how to save the power consumption of intelligent mobile terminal becomes
One study hotspot.
In intelligent mobile terminal, the power consumption of power amplifier (Power Amplifier, PA) is very big.The load resistance of PA
It is anti-that usually because of layout cabling, the difference of the rear end radio-frequency devices for using is presented different states on different circuit boards, therefore
Radio frequency research staff would generally carry out the impedance matching debugging of PA according to the actual conditions of circuit board, to improve the efficiency of PA.And
The efficiency of PA is higher, and transmission power circuit is less, and power consumption is less, and power consumption is lower, and the experience brought to user is also better.Radio frequency
Research staff has found in impedance matching debugging efforts are carried out to PA, even if PA improved efficiencies after debugging, but with intelligent sliding
The change of dynamic terminal works environment, the efficiency of PA may decline, and the impedance matching network debugged no longer is suitable for.
The content of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of terminal power amplifier impedance-matching device and side
Method, is able to maintain that the impedance matching of power amplifier.
In order to reach the object of the invention, the invention provides a kind of terminal amplifier impedance-matching device, including：
Power amplifier PA；
PA running parameter detection modules, for obtaining PA running parameters, the PA running parameters include：The work temperature of PA
Degree；
Memory module, for storing PA running parameters and matching impedance matching network parameter；
Tunable impedance matching networks；
Impedance matching network control circuit, for getting the impedance matching of matching from memory module according to PA running parameters
After network parameter, control tunable impedance matching networks are operated with the impedance matching network parameter of the matching.
Optionally, the PA running parameters also include：PA working frequency range.
Optionally, described device also includes:
PA gain acquisition modules, for whether judging PA in high-gain working condition, when the PA is in high-gain work
When making state, the PA running parameters detection module work is triggered；
The PA running parameters detection module, is additionally operable to after the trigger for receiving PA gain acquisition modules, obtains
The running parameter of PA.
Optionally, described device also includes:
Output power acquisition module, for judging the power output size of PA, when the power output is more than predetermined threshold value
When, trigger the PA running parameters detection module work；
The PA running parameters detection module, is additionally operable to after the trigger for receiving output power acquisition module, obtains
Take the running parameter of PA.
Optionally, described device also includes:
Input power acquisition module, for judging the input power size of PA, when the input power is more than predetermined threshold value
When, trigger the PA running parameters detection module work；
The PA running parameters detection module, is additionally operable to after the trigger for receiving input power acquisition module, obtains
Take the running parameter of PA.
Present invention also offers a kind of method of terminal power amplifier impedance matching, including：
The running parameter of power amplifier PA is obtained, the running parameter includes：PA operating temperatures；
Matching impedance matching network parameter is obtained according to the PA running parameters；
Impedance matching network in control terminal is operated with the parameter of the acquisition.
Optionally, the PA running parameters also include：PA working frequency range.
Optionally, methods described also includes：
Before the operating temperature of the acquisition PA, whether PA is judged in high-gain working condition, when the PA is in height
During gain working condition, the running parameter of PA is just obtained.
Optionally, methods described also includes：
Before the operating temperature of the acquisition PA, the power output size of PA is judged, when the power output is more than default
During threshold value, the running parameter of PA is just obtained.
Optionally, methods described also includes：
Before the operating temperature of the acquisition PA, the input power size of PA is judged, when the input power is more than default
During threshold value, the running parameter of PA is just obtained.
Technical solution of the present invention includes：The running parameter of power amplifier PA is obtained, the PA running parameters include：PA's
Operating temperature；Matching impedance matching network parameter is obtained according to the PA running parameters；Impedance in control terminal
Distribution network is operated with the parameter of the acquisition.Technical solution of the present invention can realize that PA is obtained under different state of temperatures
Matching impedance is obtained, makes PA to reach optimal power in different temperature.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is that the hardware configuration of the mobile terminal for realizing each embodiment of the invention is illustrated；
Fig. 2 is embodiment of the present invention terminal power amplifier impedance-matching device construction module figure；
Fig. 3 is embodiment of the present invention terminal power amplifier impedance matching methods flow chart；
Fig. 4 is schematic flow sheet of the present invention using example.
Specific embodiment
Technical scheme is described in detail below in conjunction with drawings and Examples.
The mobile terminal of each embodiment of the invention is realized referring now to Description of Drawings.In follow-up description, use
For represent element such as " module ", " part " or " unit " suffix only for be conducive to the present invention explanation, itself
Not specific meaning.Therefore, " module " can be used mixedly with " part ".
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
Phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP
The mobile terminal of (portable media player), guider etc. and such as numeral TV, desktop computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for movement
Outside the element of purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is the hardware architecture diagram of the mobile terminal for realizing each embodiment of the invention.
Mobile terminal 1 00 can include wireless communication unit 110, A/V (audio/video) input block 120, user input
Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power subsystem 190
Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups for illustrating
Part.More or less of component can alternatively be implemented.Will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assemblies, and it allows mobile terminal 1 00 and wireless communication system
Or the radio communication between network.For example, wireless communication unit can include broadcasting reception module 111, mobile communication module
112nd, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.
Broadcasting reception module 111 receives broadcast singal and/or broadcast via broadcast channel from external broadcast management server
Relevant information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can be generated and sent
The broadcast singal generated before the server or reception of broadcast singal and/or broadcast related information and/or broadcast related information
And send it to the server of terminal.Broadcast singal can include TV broadcast singals, radio signals, data broadcasting
Signal etc..And, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Pass information can also be provided via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 is receiving.Broadcast singal can be present in a variety of manners, and for example, it can be with the electronics of DMB (DMB)
The form of program guide (EPG), the electronic service guidebooks (ESG) of digital video broadcast-handheld (DVB-H) etc. and exist.Broadcast
Receiver module 111 can receive signal broadcast by using various types of broadcast systems.Especially, broadcasting reception module 111
Can be wide by using such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), digital video
Broadcast-hand-held (DVB-H), forward link media (MediaFLO@) Radio Data System, received terrestrial digital broadcasting integrated service
Etc. (ISDB-T) digit broadcasting system receives digital broadcasting.Broadcasting reception module 111 may be constructed such that and be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via broadcasting reception module 111 receive broadcast singal and/
Or broadcast related information can be stored in memory 160 (or other types of storage medium).
Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal can be logical including voice
Words signal, video calling signal or the various types of data for sending and/or receiving according to text and/or Multimedia Message.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by the module can include WLAN (WLAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology include indigo plant
ToothTM, RF identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybeeTMEtc..
Location information module 115 is the module for checking or obtaining the positional information of mobile terminal.Location information module
Typical case be GPS (global positioning system).According to current technology, GPS module 115 is calculated from three or more satellites
Range information and correct time information and for calculate Information application triangulation, so as to according to longitude, latitude
Highly accurately calculate three-dimensional current location information.Currently, the method for calculating position and temporal information is defended using three
The error of star and the position that calculated by using other satellite correction and temporal information.Additionally, GPS module 115
Can be by Continuous plus current location information in real time come calculating speed information.
A/V input blocks 120 are used to receive audio or video signal.A/V input blocks 120 can include the He of camera 121
Microphone 1220, the static map that 121 pairs, camera is obtained in Video Capture pattern or image capture mode by image capture apparatus
The view data of piece or video is processed.Picture frame after process may be displayed on display unit 151.At Jing cameras 121
Picture frame after reason can be stored in memory 160 (or other storage mediums) or via wireless communication unit 110 and carry out
Send, two or more cameras 1210 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone relation mould
Sound (voice data) is received via microphone in formula, logging mode, speech recognition mode etc. operational mode, and can be by
Such acoustic processing is voice data.Audio frequency (voice) data after process can be changed in the case of telephone calling model
For the form output of mobile communication base station can be sent to via mobile communication module 112.Microphone 122 can implement all kinds
Noise eliminate (or suppress) algorithm eliminating (or suppression) in the noise for receiving and producing during sending audio signal or
Person disturbs.
User input unit 130 can generate key input data to control each of mobile terminal according to the order of user input
Plant operation.User input unit 130 allows the various types of information of user input, and can include keyboard, metal dome, touch
Plate (for example, detection is due to the sensitive component of the change of touched and caused resistance, pressure, electric capacity etc.), roller, rocking bar etc.
Deng.Especially, when touch pad is superimposed upon in the form of layer on display unit 151, touch-screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 1 00, and (for example, mobile terminal 1 00 opens or closes shape
State), the presence or absence of contact (that is, touch input), the mobile terminal of the position of mobile terminal 1 00, user for mobile terminal 1 00
100 orientation, the acceleration or deceleration movement of mobile terminal 1 00 and direction etc., and generate for controlling mobile terminal 1 00
The order of operation or signal.For example, when mobile terminal 1 00 is embodied as sliding-type mobile phone, sensing unit 140 can be sensed
The sliding-type phone is opened or closed.In addition, sensing unit 140 can detect power subsystem 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 can will be combined below including proximity transducer 1410
Touch-screen to this being described.
Interface unit 170 is connected the interface that can pass through with mobile terminal 1 00 as at least one external device (ED).For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port for device of the connection with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be that storage uses each of mobile terminal 1 00 for verifying user
Kind of information and subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) can be included
Etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can take the form of smart card, therefore, know
Other device can be connected via port or other attachment means with mobile terminal 1 00.Interface unit 170 can be used for receive from
The input (for example, data message, electric power etc.) of external device (ED) and the input for receiving is transferred in mobile terminal 1 00
One or more elements can be used for the transmission data between mobile terminal and external device (ED).
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing to pass through it by electricity
Power from base provide to mobile terminal 1 00 path or can serve as allow from base be input into various command signals pass through its
It is transferred to the path of mobile terminal.Can serve as recognizing that mobile terminal is from the various command signals or electric power of base input
The no signal being accurately fitted within base.Output unit 150 is configured to provide defeated with vision, audio frequency and/or tactile manner
Go out signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.).Output unit 150 can include showing
Unit 151, dio Output Modules 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information processed in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia files
Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, illustrate video or figure
UI or GUI of picture and correlation function etc..
Meanwhile, when the display unit 151 and touch pad touch-screen with formation superposed on one another in the form of layer, display unit
151 can serve as input unit and output device.Display unit 151 can include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user from outside viewing, and this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
The embodiment wanted, mobile terminal 1 00 can include two or more display units (or other display devices), for example, move
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch-screen can be used for detection and touch
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal in call signal reception pattern, call mode, logging mode,
It is that wireless communication unit 110 is received or in memory 160 when under the isotypes such as speech recognition mode, broadcast reception mode
The voice data transducing audio signal of middle storage and it is output as sound.And, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation that terminal 100 is performed.
Dio Output Modules 152 can include loudspeaker, buzzer etc..
Alarm unit 153 can provide output so that event is notified to mobile terminal 1 00.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video is exported, alarm unit
153 can in a different manner provide output with the generation of notification event.For example, alarm unit 153 can be in the form of vibrating
Output is provided, when calling, message or some other entrance communication (incoming communication) are received, alarm list
Unit 153 can provide tactile output (that is, vibrating) to notify to user.By providing such tactile output, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can be provided via display unit 151 or dio Output Modules 152.
Memory 160 can store software program for the process and control operation performed by controller 180 etc., Huo Zheke
With the data (for example, telephone directory, message, still image, video etc.) for temporarily storing own Jing outputs or will export.And
And, memory 160 can be storing the vibration of various modes with regard to exporting when touching and being applied to touch-screen and audio signal
Data.
Memory 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memory (for example, SD or DX memories etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only storage (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can perform memory with by network connection
The network storage device cooperation of 160 store function.
The overall operation of the generally control mobile terminal of controller 180.For example, controller 180 is performed and voice call, data
The related control of communication, video calling etc. and process.In addition, controller 180 can be included for reproducing (or playback) many matchmakers
The multi-media module 1810 of volume data, multi-media module 1810 can be constructed in controller 180, or is so structured that and control
Device processed 180 is separated.Controller 180 can be with execution pattern identifying processing, by the handwriting input for performing on the touchscreen or figure
Piece draws input and is identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit
Appropriate electric power needed for part and component.
Various embodiments described herein can be with using such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implementing.For hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is designed to perform function described herein
Implementing, in some cases, such embodiment can be implemented at least one in electronic unit in controller 180.
For software is implemented, the embodiment of such as process or function can with allow to perform the single of at least one function or operation
Software module is implementing.Software code can be come by the software application (or program) write with any appropriate programming language
Implement, software code can be stored in memory 160 and be performed by controller 180.
So far, own Jing describes mobile terminal according to its function.Below, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc. is used as showing
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
As shown in Figure 1 mobile terminal 1 00 may be constructed such that using via frame or packet transmission data it is all if any
Line and wireless communication system and satellite-based communication system are operating.
Based on above-mentioned mobile terminal hardware configuration, each embodiment of the invention is proposed.
The usual parameter of PA impedance matching networks debugged at present no longer changes, and present inventor has found the matching of PA
Impedance can change with the change of temperature.Following each embodiment of the present invention is proposed based on the thought.
As shown in Fig. 2 the embodiment of the present invention proposes a kind of device of terminal power amplifier impedance matching, described device
Including：
Power amplifier PA201；
PA running parameters detection module 202, for obtaining the running parameter of PA, the PA running parameters include：The work of PA
Make temperature；
Alternatively, the operating temperature of the PA can be showed by the temperature of the thermistor being arranged near PA, and then described
PA running parameters detection module 202 can pass through the operating temperature that the temperature of the thermistor that detection is arranged near PA obtains PA；
Existing PA temperature sensing circuits can be applicable in the PA running parameters detection module 202；
Memory module 205, for storing PA running parameters and matching impedance matching network parameter；
Optionally, in order to obtain the operating temperature and matching impedance matching network parameter of PA, art technology
Personnel can in advance choose different temperature, and impedance matching network is debugged at the different temperature, record the resistance
Anti- matching network is in each component parameter under matching status；Because the circuit layout of impedance matching network also affects impedance matching
Network parameter of the network under matching status, is that the operating efficiency for ensureing PA is optimal, and alternatively, memory module is in storage
The circuit layout of impedance matching network can be indicated when running parameter and matching impedance matching network parameter；
Tunable impedance matching networks 203；
Impedance matching network control circuit 204, for getting matching from memory module according to the PA running parameters
After impedance matching network parameter, control tunable impedance matching networks carry out work with the impedance matching network parameter of the matching
Make.
Alternatively, the impedance matching network control circuit 204, can after the impedance matching network parameter of matching is got
Again to tunable impedance matching networks assignment, so that tunable impedance matching networks are operated with the parameter being endowed.
Above-mentioned technical proposal can realize that PA obtains matching impedance under different state of temperatures, make PA in different temperature
Degree can reach optimal power.
In other embodiments of the present invention, above-mentioned PA running parameters also include：PA working frequency range；Due to going out in prior art
Having showed can support the terminal of many working frequency range, and under different working frequency range, the impedance matching network parameter of PA is also different, therefore
The application can also realize that PA obtains matching impedance under different temperature condition, different operating frequency range, make PA in different temperature
Optimal power can be reached under degree, different working frequency range.
In other embodiments of the present invention, said apparatus also include：
PA gain acquisition modules, for whether judging PA in high-gain working condition, when the PA is in high-gain work
When making state, the PA running parameters detection module work is triggered；
The PA running parameters detection module, is additionally operable to after the trigger for receiving PA gain acquisition modules, obtains
The running parameter of PA.
PA is under high-gain working condition, and operating current is big, and the impact loaded to PA operating currents is also big.In PA in height
Under gain working condition, matching impedance is adjusted according to temperature or temperature and working frequency range, ensure that the power consumption of PA most
It is excellent, and then the power consumption of saving terminal, provide the user the experience of power consumption.
The embodiment of the present invention so that PA is in high-gain working condition as an example although illustrate to be changed according to temperature or temperature and frequency
Become the significant advantage that brings to terminal power consumption of matching impedance, but when PA is under low gain working condition, also dependent on temperature,
Or temperature and frequency shift matching impedance.Or, when PA is in high-gain working condition, according to temperature or temperature and frequency
Change the matching impedance of PA, when PA is in low gain working condition, the impedance matching network of PA uses preset parameter.
In other embodiments of the present invention, said apparatus also include：
Output power acquisition module, for judging the power output size of PA, when the power output is more than predetermined threshold value
When, trigger the PA running parameters detection module work；
The PA running parameters detection module, is additionally operable to after the trigger for receiving output power acquisition module, obtains
Take the running parameter of PA.
In other embodiments of the present invention, said apparatus also include：
Received signal strength detection module, for the received signal strength that detection terminal is received, and by connecing for detecting
Receive signal strength signal intensity to send to power amplifier PA；
The power amplifier PA, is additionally operable to adjust the power output size of PA according to the received signal strength；
Output power acquisition module, for judging the power output size of PA, when the power output is more than predetermined threshold value
When, trigger the PA running parameters detection module work；
The PA running parameters detection module, is additionally operable to after the trigger for receiving output power acquisition module, obtains
Take the running parameter of PA.
In other embodiments of the present invention, said apparatus also include：
Input power acquisition module, for judging the input power size of PA, when the input power is more than predetermined threshold value
When, trigger the PA running parameters detection module work；
The PA running parameters detection module, is additionally operable to after the trigger for receiving input power acquisition module, obtains
Take the running parameter of PA.
When the power output or larger input power of PA, operating current is big, and the impact loaded to PA operating currents is also big.
When PA is under the larger working condition of power output or input power, matching is hindered according to temperature or temperature and working frequency range
It is anti-to be adjusted, ensure that the power consumption of PA is optimum, and then the power consumption of terminal is saved, provide the user the experience of power consumption.
The embodiment of the present invention so that PA is under the larger working condition of power output or input power as an example although illustrate root
According to the significant advantage that temperature or temperature and frequency shift matching impedance are brought to terminal power consumption, but when PA is in other work shapes
When under state, also dependent on temperature or temperature and frequency shift matching impedance.Or, in PA in power output or input power
During larger working condition, according to temperature or the matching impedance of temperature and frequency shift PA, when PA is in other working conditions
When, the impedance matching network of PA uses preset parameter.
Duplexer in Fig. 2, for separting transomission and reception signal；
Duplexer, the receiving-transmitting chain of the different operating frequency range supported for switching terminal.
As shown in figure 3, the embodiment of the present invention proposes a kind of method of terminal power amplifier impedance matching.
S301 obtains the running parameter of power amplifier PA, and the PA running parameters include：PA operating temperatures；
The operating temperature of the PA can be showed by the temperature of the thermistor being arranged near PA, optionally, step S301
The temperature that the thermistor that detection is arranged near PA can be passed through obtains the operating temperature of PA；Existing PA temperature sensing circuits can
It is applied to the embodiment of the present invention；
S302 obtains matching impedance matching network parameter according to the PA running parameters；
Optionally, in order to obtain the operating temperature and matching impedance matching network parameter of PA, art technology
Personnel can in advance choose different temperature, and impedance matching network is debugged at the different temperature, record the resistance
Each component parameter of the anti-matching network under matching status；Because the circuit layout of impedance matching network also affects impedance
Network parameter of the distribution network under matching status, is that the operating efficiency for ensureing PA is optimal, alternatively, in writing task ginseng
The circuit layout of impedance matching network can be indicated during several and matching impedance matching network parameter；
Impedance matching network in S303 control terminals is operated with the parameter of the acquisition；
Alternatively, step S303 can pass through again to tunable impedance matching networks assignment, so that tunable impedance matching
Network is operated with the parameter being endowed.
Above-mentioned technical proposal can realize that PA obtains matching impedance under different state of temperatures, make PA in different temperature
Degree can reach optimal power.
In other embodiments of the present invention, above-mentioned PA running parameters also include：PA working frequency range；Due to going out in prior art
Having showed can support the terminal of many working frequency range, and under different working frequency range, the impedance matching network parameter of PA is also different, therefore
The application can also realize that PA obtains matching impedance under different temperature condition, different operating frequency range, make PA in different temperature
Optimal power can be reached under degree, different working frequency range.
In the application other embodiment, methods described also includes：
Before the operating temperature of the acquisition PA, whether PA is judged in high-gain working condition, when the PA is in height
During gain working condition, the running parameter of PA is just obtained.
PA is under high-gain working condition, and operating current is big, and the impact loaded to PA operating currents is also big.In PA in height
Under gain working condition, matching impedance is adjusted according to temperature or temperature and working frequency range, ensure that the power consumption of PA most
It is excellent, and then the power consumption of saving terminal, provide the user the experience of power consumption.
The embodiment of the present invention so that PA is in high-gain working condition as an example although illustrate to be changed according to temperature or temperature and frequency
Become the significant advantage that brings to terminal power consumption of matching impedance, but when PA is under low gain working condition, also dependent on temperature,
Or temperature and frequency shift matching impedance.Or, when PA is in high-gain working condition, according to temperature or temperature and frequency
Change the matching impedance of PA, when PA is in low gain working condition, the impedance matching network of PA uses preset parameter.
In the application other embodiment, methods described also includes：
Before the operating temperature of the acquisition PA, the power output size of PA is judged, when the power output is more than default
During threshold value, the running parameter of PA is just obtained.
In the application other embodiment, methods described also includes：
The received signal strength that detection terminal is received, according to the received signal strength output power of PA is adjusted
It is little；
Before the operating temperature of the acquisition PA, the power output size of PA is judged, when the power output is more than default
During threshold value, the running parameter of PA is just obtained.
In the application other embodiment, methods described also includes：
Before the operating temperature of the acquisition PA, the input power size of PA is judged, when the input power is more than default
During threshold value, the running parameter of PA is just obtained.
When the power output or larger input power of PA, operating current is big, and the impact loaded to PA operating currents is also big.
When PA is under the larger working condition of power output or input power, matching is hindered according to temperature or temperature and working frequency range
It is anti-to be adjusted, ensure that the power consumption of PA is optimum, and then the power consumption of terminal is saved, provide the user the experience of power consumption.
The embodiment of the present invention so that PA is under the larger working condition of power output or input power as an example although illustrate root
According to the significant advantage that temperature or temperature and frequency shift matching impedance are brought to terminal power consumption, but when PA is in other work shapes
When under state, also dependent on temperature or temperature and frequency shift matching impedance.Or, in PA in power output or input power
During larger working condition, according to temperature or the matching impedance of temperature and frequency shift PA, when PA is in other working conditions
When, the impedance matching network of PA uses preset parameter.
Below example is specifically applied with one, the method for above-mentioned terminal power amplifier impedance matching is illustrated,
As shown in Figure 4.
S401 confirms that mobile phone is in emission state；
Whether S402 judges power amplifier PA in high gain state, if it is, execution step S403；If it is not,
Execution step S406；
S403 obtains the operating temperature and working frequency range of PA；
S404 obtains matching impedance matching network parameter according to the operating temperature of the PA, PA working frequency range；
S405 makes the impedance matching network with the parameter of the acquisition to the impedance matching network in mobile phone again assignment
It is operated, execution step S407；
S406 makes impedance matching network continue to be operated with default value；
S407 flow processs terminate.
It should be noted that herein, term " including ", "comprising" or its any other variant are intended to non-row
His property is included, so that a series of process, method, article or device including key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, computer takes
Business device, air-conditioner, or network equipment etc.) perform method described in each embodiment of the invention.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of device of terminal power amplifier impedance matching, it is characterised in that described device includes：
Power amplifier PA；
PA running parameter detection modules, for obtaining PA running parameters, the PA running parameters include：The operating temperature of PA；
Memory module, for storing PA running parameters and matching impedance matching network parameter；
Tunable impedance matching networks；
Impedance matching network control circuit, for getting the impedance matching network of matching from memory module according to PA running parameters
After parameter, control tunable impedance matching networks are operated with the impedance matching network parameter of the matching.
2. device as claimed in claim 1, it is characterised in that
The PA running parameters also include：PA working frequency range.
3. device as claimed in claim 1 or 2, it is characterised in that described device also includes:
PA gain acquisition modules, for whether judging PA in high-gain working condition, when the PA is in high-gain work shape
During state, the PA running parameters detection module work is triggered；
The PA running parameters detection module, is additionally operable to after the trigger for receiving PA gain acquisition modules, obtains PA's
Running parameter.
4. device as claimed in claim 1 or 2, it is characterised in that described device also includes:
Output power acquisition module, for judging the power output size of PA, when the power output is more than predetermined threshold value, touches
Work of sending out PA running parameters detection module described；
The PA running parameters detection module, is additionally operable to after the trigger for receiving the output power acquisition module, obtains
Take the running parameter of PA.
5. device as claimed in claim 1, it is characterised in that described device also includes:
Input power acquisition module, for judging the input power size of PA, when the input power is more than predetermined threshold value, touches
Work of sending out PA running parameters detection module described；
The PA running parameters detection module, is additionally operable to after the trigger for receiving the input power acquisition module, obtains
Take the running parameter of PA.
6. a kind of method of terminal power amplifier impedance matching, it is characterised in that include：
The running parameter of power amplifier PA is obtained, the running parameter includes：PA operating temperatures；
Matching impedance matching network parameter is obtained according to the PA running parameters；
Impedance matching network in control terminal is operated with the parameter of the acquisition.
7. method as claimed in claim 6, it is characterised in that
The PA running parameters also include：PA working frequency range.
8. method as claimed in claims 6 or 7, it is characterised in that methods described also includes：
Before the operating temperature of the acquisition PA, whether PA is judged in high-gain working condition, when the PA is in high-gain
During working condition, the running parameter of PA is just obtained.
9. method as claimed in claims 6 or 7, it is characterised in that methods described also includes：
Before the operating temperature of the acquisition PA, the power output size of PA is judged, when the power output is more than predetermined threshold value
When, just obtain the running parameter of PA.
10. method as claimed in claims 6 or 7, it is characterised in that methods described also includes：
Before the operating temperature of the acquisition PA, the input power size of PA is judged, when the input power is more than predetermined threshold value
When, just obtain the running parameter of PA.
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| CN201611073935.8A CN106656055A (en) | 2016-11-29 | 2016-11-29 | Impedance matching device and method for terminal power amplifier |
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| CN109274441A (en) * | 2018-11-06 | 2019-01-25 | 维沃移动通信有限公司 | A kind of tuning methods and terminal device |
| CN110311631A (en) * | 2019-05-29 | 2019-10-08 | 上海联影医疗科技有限公司 | Radio-frequency power amplifier, radio-frequency power amplifying method and magnetic resonance imaging system |
| CN110708089A (en) * | 2019-09-23 | 2020-01-17 | 广州慧智微电子有限公司 | Radio frequency front end architecture |
| CN110768634A (en) * | 2019-09-23 | 2020-02-07 | 广州慧智微电子有限公司 | Radio frequency front end architecture |
| CN111162804A (en) * | 2019-12-25 | 2020-05-15 | 普联国际有限公司 | Radio frequency device with adjustable load |
| CN113141187A (en) * | 2021-04-26 | 2021-07-20 | 深圳市广和通无线股份有限公司 | Tuning matching control circuit, method and related equipment |
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| CN113141187A (en) * | 2021-04-26 | 2021-07-20 | 深圳市广和通无线股份有限公司 | Tuning matching control circuit, method and related equipment |
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