CN105743518A - Antenna tuning method and antenna tuning device - Google Patents
Antenna tuning method and antenna tuning device Download PDFInfo
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- CN105743518A CN105743518A CN201610040035.7A CN201610040035A CN105743518A CN 105743518 A CN105743518 A CN 105743518A CN 201610040035 A CN201610040035 A CN 201610040035A CN 105743518 A CN105743518 A CN 105743518A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/103—Reflected power, e.g. return loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- Signal Processing (AREA)
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- Electromagnetism (AREA)
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- Transmitters (AREA)
Abstract
The invention discloses an antenna tuning method, an antenna tuning circuit and an antenna tuning device, and belongs to the technical field of communication. The method comprises the following steps: receiving a signal output by an amplifier, and tuning the signal preliminarily through a tuning network; judging whether the standing wave ratio of the preliminarily-tuned signal is greater than a preset threshold; if the standing wave ratio of the preliminarily-tuned signal is greater than the preset threshold, gradually driving the tuning network to get the best matching tuning network parameters; and secondarily tuning the preliminarily-tuned signal based on the best matching tuning network parameters, and sending the signal out through an antenna. By detecting standing wave intelligently and matching the tuning network to the best, the standing wave ratio is smaller, and more energy is radiated out through the antenna.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of antenna tuning method and device.
Background technology
In the antenna transmission circuit of communication system, usually because resistance matching problem causes that standing wave is excessive, and make the signal through amplifier fail to be entirely through antenna and launch, and the components and parts in circuit also can be had detrimental effect to even result in system cannot to work by the energy reflected.In existing technical scheme, the radio circuit part of a lot of electric terminal equipments is often through the parameter of its load impedance of apparatus measures and standing wave, on hardware, the parameter of impedance is improved again, impedance is mated more, to reduce the reflected signal impact on circuit.
But, the parameter of manual amendment Hardware match seems in the process of debugging and excessively bothers, and workload is very big, and system tranmitting frequency meeting real-time change, and different frequencies needs different match parameter, it is impossible to make antenna tuning parameters realize the best.
Summary of the invention
Present invention is primarily targeted at a kind of antenna tuning method of proposition, circuit and device, it is intended to solution standing wave is excessive and understands real-time change, it is impossible to the problem making antenna optimal tuning.
For achieving the above object, provided by the invention
A kind of antenna tuning method, described method includes step:
The signal of reception amplifier output, and by tuning network, described signal is tuned for the first time；
Judge that whether the standing-wave ratio of first tuning signal is more than default threshold value；
If so, tuning network is then progressively driven, it is thus achieved that best coupling tuning network parameter；
Mate tuning network parameter by the best described first tuning signal is tuned again, and launch from antenna.
Alternatively, it is judged that whether the first standing-wave ratio tuning signal includes more than default threshold value:
Carry out standing wave detection in real time or regularly to first tuning signal；
The standing-wave ratio of described standing wave is calculated by CPU arithmetic element；
Described standing-wave ratio is compared with the threshold value preset.
Alternatively, the described standing-wave ratio by the CPU arithmetic element described standing wave of calculating includes:
From described first tuning signal, it is coupled into reflection power coupled signal and incident power coupled signal by bidirectional coupler；
The reflected voltage value of reflection power coupled signal is gathered by the first detecting circuit being sequentially connected with, the first low pass filter and the first direct current acquisition module；The incident voltage value of incident power coupled signal is gathered by the second detecting circuit being sequentially connected with, the second low pass filter and the second direct current acquisition module；
The ratio being calculated reflected voltage value and incident voltage value by CPU arithmetic element is reflection coefficientUtilize formulaTry to achieve standing-wave ratio VSWR.
Alternatively, described tuning network includes electric capacity framework and inductance framework.
Additionally, for achieving the above object, the present invention also proposes a kind of antenna tuning circuit, including:
Amplifier, is tuned to tunes signal for the first time for input signal is amplified and output to tuning network；
Whether testing circuit, be used for the standing-wave ratio judging described first tuning signal more than default threshold value；If so, tuning network is then progressively driven, it is thus achieved that best coupling tuning network parameter；
Tuning network, tunes for the first time for the signal that described amplifier is exported, and by best coupling tuning network parameter, described first tuning signal is tuned again.
Alternatively, described testing circuit includes: bidirectional coupler, the first detecting circuit, the first low pass filter and the first direct current acquisition module being sequentially connected with, the second detecting circuit being sequentially connected with, the second low pass filter and the second direct current acquisition module, CPU arithmetic element；
Wherein, bidirectional coupler, for being coupled into reflection power coupled signal and incident power coupled signal from described first tuning signal；
The first detecting circuit, the first low pass filter and the first direct current acquisition module being sequentially connected with is for gathering the reflected voltage value of the reflection power coupled signal of bidirectional coupler output；
The second detecting circuit, the second low pass filter and the second direct current acquisition module being sequentially connected with is for gathering the incident voltage value of the incident power coupled signal of bidirectional coupler output；
CPU arithmetic element is for calculating reflection coefficient and standing-wave ratio by described reflected voltage value and incident voltage value.
Alternatively, described CPU arithmetic element for calculating reflection coefficient and standing-wave ratio by described reflected voltage value and incident voltage value particularly as follows:
The ratio being calculated reflected voltage value and incident voltage value by CPU arithmetic element is reflection coefficientUtilize formulaTry to achieve standing-wave ratio VSWR.
Alternatively, described tuning network includes electric capacity framework and inductance framework.
Additionally, for achieving the above object, the present invention also proposes a kind of antenna tuning unit, including:
Receiver module, for the signal of reception amplifier output, and sends described signal to tuning network；
Judge module, for judging that whether the standing-wave ratio tuning signal for the first time is more than default threshold value；
Matching module, for when standing-wave ratio is more than default threshold value, progressively driving tuning network, it is thus achieved that best coupling tuning network parameter；
Tuner module, the signal for described amplifier is exported carries out first tuning and is tuned signal for the first time, and by best coupling tuning network parameter, described first tuning signal is tuned again.
Alternatively, described judge module includes:
Standing wave detection unit, for carrying out standing wave detection to described first tuning signal in real time or regularly；
Computing unit, for calculating the standing-wave ratio of described standing wave by CPU arithmetic element；
Comparing unit, for comparing described standing-wave ratio with the threshold value preset.
A kind of antenna tuning method, circuit and the device that the present invention proposes, described method includes: the signal of reception amplifier output, and by tuning network, described signal is tuned for the first time；Judge that whether the standing-wave ratio of first tuning signal is more than default threshold value；If so, tuning network is then progressively driven, it is thus achieved that best coupling tuning network parameter；Mate tuning network parameter by the best described first tuning signal is tuned again, and launch from antenna, the present invention is by Intelligent Measurement standing wave and tuning network is matched to the best so that standing-wave ratio is less, and the energy gone out by aerial radiation is more.
Accompanying drawing explanation
Fig. 1 is the hardware architecture diagram of the mobile terminal realizing each embodiment of the present invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
The antenna tuning method flow diagram that Fig. 3 provides for the embodiment of the present invention one；
The antenna tuning method flow diagram that Fig. 4 provides for the embodiment of the present invention two；
The circuit diagram of the antenna tuning circuit that Fig. 5 provides for the embodiment of the present invention three；
The functional exemplary block diagram of the antenna tuning unit that Fig. 6 provides for the embodiment of the present invention four；
Fig. 7 is the functional exemplary block diagram of judge module in Fig. 6.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The mobile terminal realizing each embodiment of the present invention is described referring now to accompanying drawing.In follow-up description, use the suffix being used for representing such as " module ", " parts " or " unit " of element only for being conducive to the explanation of the present invention, itself do not have specific meaning.Therefore, " module " and " parts " can mixedly use.
Mobile terminal can be implemented in a variety of manners.Such as, the terminal described in the present invention can include the mobile terminal of such as mobile phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP (portable media player), guider etc. and the fixed terminal of such as numeral TV, desk computer etc..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 the element of mobile purpose, structure according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is the hardware configuration signal of a kind of mobile terminal realizing each embodiment of the present invention alternatively.
Mobile terminal 100 can include wireless communication unit 110, A/V (audio/video) input block 120, user input unit 130, sensing unit 140, output unit 150, memorizer 160, interface unit 170, controller 180 and power subsystem 190 etc..Fig. 1 illustrates the mobile terminal with various assembly, it should be understood that be not required for implementing all assemblies illustrated.Can alternatively implement more or less of assembly.Will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assembly, and it allows the radio communication between mobile terminal 100 and wireless communication system or network.Such as, wireless communication unit can include at least one in broadcast reception module 111, mobile communication module 112, wireless Internet module 113 and short range communication module 114.
Broadcast reception module 111 manages server via broadcast channel from external broadcasting and receives broadcast singal and/or broadcast related information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can be generate and send the server of broadcast singal and/or broadcast related information or broadcast singal that reception is previously created and/or broadcast related information and send it to the server of terminal.Broadcast singal can include TV broadcast singal, radio signals, data broadcasting signal etc..And, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast related information can also provide via mobile communications network, and in this case, broadcast related information can be received by mobile communication module 112.Broadcast singal can exist in a variety of manners, such as, it can exist with the electronic program guides (EPG) of DMB (DMB), the form of the electronic service guidebooks (ESG) etc. of digital video broadcast-handheld (DVB-H).Broadcast reception module 111 can be passed through to use various types of broadcast systems to receive signal broadcast.Especially, broadcast reception module 111 can be passed through to use such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), DVB-hand-held (DVB-H), forward link media (MediaFLO) Radio Data System, received terrestrial digital broadcasting integrated service (ISDB-T) etc. digit broadcasting system receive digital broadcasting.Broadcast reception module 111 may be constructed such that the various broadcast systems and above-mentioned digit broadcasting system that are adapted to provide for broadcast singal.The broadcast singal and/or the broadcast related information that receive via broadcast reception module 111 can be stored in memorizer 160 (or other type of storage medium).
Mobile communication module 112 sends radio signals at least one in base station (such as, access point, node B etc.), exterior terminal and server and/or receives from it radio signal.Such radio signal can include voice call signal, video calling signal or the various types of data sending according to text and/or Multimedia Message and/or receiving.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.This module can internally or externally be couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by this module can include WLAN (WLAN) (Wi-Fi), Wibro (WiMAX), Wimax (worldwide interoperability for microwave access), 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 bluetoothTM, RF identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybeeTMEtc..
A/V input block 120 is used for receiving audio or video signal.A/V input block 120 can include camera 121 and mike 1220, and the view data of the camera 121 static images to being obtained by image capture apparatus in Video Capture pattern or image capture mode or video processes.Picture frame after process may be displayed on display unit 151.Picture frame after camera 121 processes can be stored in memorizer 160 (or other storage medium) or be transmitted via wireless communication unit 110, it is possible to provide two or more cameras 1210 according to the structure of mobile terminal.Such acoustic processing can via microphones sound (voice data) in telephone calling model, logging mode, speech recognition mode etc. operational mode, and can be voice data by mike 122.Audio frequency (voice) data after process can be converted to the form output that can be sent to mobile communication base station via mobile communication module 112 when telephone calling model.Mike 122 can implement various types of noise elimination (or suppression) algorithm to eliminate (or suppression) in the noise received and produce in the process of transmission audio signal or interference.
Sensing unit 140 detects the current state of mobile terminal 100, (such as, mobile terminal 100 open or close state), the position of mobile terminal 100, user for mobile terminal 100 contact (namely, touch input) presence or absence, the orientation of mobile terminal 100, mobile terminal 100 acceleration or deceleration move and direction etc., and generate the order of operation for controlling mobile terminal 100 or signal.Such as, when mobile terminal 100 is embodied as sliding-type mobile phone, sensing unit 140 can sense this sliding-type phone and open or close.It addition, sensing unit 140 can detect power subsystem 190 and whether provide whether electric power or interface unit 170 couple with external device (ED).
Interface unit 170 is used as at least one external device (ED) and is connected, with mobile terminal 100, the interface that can pass through.Such as, external device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or wireless FPDP, memory card port, for connecting the port of the device with identification module, audio frequency input/output (I/O) port, video i/o port, ear port etc..Identification module can be that storage is for verifying that user uses the various information of mobile terminal 100 and can include subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) etc..It addition, the device (hereinafter referred to " identifying device ") with identification module can take the form of smart card, therefore, identify that device can be connected with mobile terminal 100 via port or other connecting device.Interface unit 170 may be used for receiving from the input (such as, data message, electric power etc.) of external device (ED) and the one or more elements being transferred in mobile terminal 100 by the input received or may be used for transmission data between mobile terminal and external device (ED).
Additionally, when mobile terminal 100 is connected with external base, interface unit 170 can serve as and allows to provide the path of mobile terminal 100 or can serve as to allow to be transferred to the path of mobile terminal from the various command signals of base input by it from base electric power by it.May serve as whether identification mobile terminal is accurately fitted within the signal base from the various command signals of base input or electric power.Output unit 150 is configured to provide output signal (such as, audio signal, video signal, alarm signal, vibration signal etc.) with vision, audio frequency and/or tactile manner.Output unit 150 can include dio Output Modules 152, alarm unit 153 etc..
Dio Output Modules 152 can mobile terminal be in call signal receive under the isotype such as pattern, call mode, logging mode, speech recognition mode, broadcast reception mode time, that wireless communication unit 110 is received or storage in memorizer 160 voice data transducing audio signal and be output as sound.And, dio Output Modules 152 can provide the audio frequency output (such as, call signal receive sound, message sink sound etc.) relevant to the specific function of mobile terminal 100 execution.Dio Output Modules 152 can include speaker, buzzer etc..
Alarm unit 153 can provide output so that event to inform mobile terminal 100.Typical event can include calling reception, message sink, key signals input, touch input etc..Except audio or video exports, alarm unit 153 can provide in a different manner and export the generation with notification event.Such as, alarm unit 153 can provide output with the form of vibration, when receiving calling, message or some other entrance communication (incomingcommunication), alarm unit 153 can provide sense of touch output (that is, vibration) to notify to user.By providing such sense of touch to export, even if when the mobile phone of user is in the pocket of user, user also is able to identify the generation of various event.Alarm unit 153 can also provide the output of the generation of notification event via dio Output Modules 152.
Memorizer 160 can store the process performed by controller 180 and the software program controlling operation etc., or can temporarily store the data (such as, telephone directory, message, still image, video etc.) that oneself maybe will export through output.And, memorizer 160 can store the vibration about the various modes exported when touching and being applied to touch screen and the data of audio signal.
Memorizer 160 can include the storage medium of at least one type, described storage medium includes flash memory, hard disk, multimedia card, card-type memorizer (such as, SD or DX memorizer etc.), random access storage device (RAM), static random-access memory (SRAM), read only memory (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory (PROM), magnetic storage, disk, CD etc..And, mobile terminal 100 can be connected the network storage device cooperation of the storage function performing memorizer 160 with by network.
Controller 180 generally controls the overall operation of mobile terminal.Such as, controller 180 performs the control relevant to voice call, data communication, video calling etc. and process.It addition, controller 180 can include the multi-media module 1810 for reproducing (or playback) multi-medium data, multi-media module 1810 can construct in controller 180, or it is so structured that separates with controller 180.Controller 180 can perform pattern recognition process, so that the handwriting input performed on the touchscreen or picture drafting input are identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides the suitable electric power operated needed for each element and assembly.
Various embodiment described herein can to use such as computer software, hardware or its any combination of computer-readable medium to implement.Hardware is implemented, embodiment described herein can pass through to use application-specific IC (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, at least one that is designed to perform in the electronic unit of function described herein to implement, in some cases, such embodiment can be implemented in controller 180.Implementing for software, the embodiment of such as process or function can be implemented with allowing the independent software module performing at least one function or operation.Software code can be implemented by the software application (or program) write with any suitable programming language, and software code can be stored in memorizer 160 and be performed by controller 180.
So far, oneself is through describing mobile terminal according to its function.Below, for the sake of brevity, by the slide type mobile terminal in the various types of mobile terminals describing such as folded form, board-type, oscillating-type, slide type mobile terminal etc. exemplarily.Therefore, the present invention can be applied to any kind of mobile terminal, and is not limited to slide type mobile terminal.
Mobile terminal 100 as shown in Figure 1 may be constructed such that utilization operates via such as wired and wireless communication system and the satellite-based communication system of frame or packet transmission data.
The communication system being wherein operable to according to the mobile terminal of the present invention is described referring now to Fig. 2.
Such communication system can use different air interfaces and/or physical layer.Such as, the air interface used by communication system includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and UMTS (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, as explained below relates to cdma communication system, but such instruction is equally applicable to other type of system.
With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 100, multiple base station (BS) 270, base station controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to form interface with Public Switched Telephony Network (PSTN) 290.MSC280 is also structured to and the BSC275 formation interface that can be couple to base station 270 via back haul link.Back haul link can construct according to any one in some interfaces that oneself knows, described interface includes such as E1/T1, ATM, IP, PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system as shown in Figure 2 can include multiple BSC2750.
Each BS270 can service one or more subregion (or region), by each subregion of multidirectional antenna or the antenna covering pointing to specific direction radially away from BS270.Or, each subregion can be covered by two or more antennas for diversity reception.Each BS270 may be constructed such that support multiple frequencies distribution, and the distribution of each frequency has specific frequency spectrum (such as, 1.25MHz, 5MHz etc.).
Intersecting that subregion and frequency are distributed can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver subsystem (BTS) or other equivalent terms.In this case, term " base station " may be used for broadly representing single BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Or, each subregion of specific BS270 can be referred to as multiple cellular station.
As shown in Figure 2, broadcast singal is sent in system the mobile terminal 100 of operation by broadcsting transmitter (BT) 295.Broadcast reception module 111 as shown in Figure 1 is arranged on mobile terminal 100 and sentences the broadcast singal that reception is sent by BT295.In fig. 2 it is shown that several global positioning systems (GPS) satellite 300.Satellite 300 helps to position at least one in multiple mobile terminals 100.
In fig. 2, depict multiple satellite 300, it is understood that be, it is possible to use any number of satellite obtains useful location information.GPS module 115 as shown in Figure 1 is generally configured to coordinate the location information wanted with acquisition with satellite 300.Substitute GPS tracking technique or outside GPS tracking technique, it is possible to use other technology of the position of mobile terminal can be followed the tracks of.It addition, at least one gps satellite 300 can optionally or additionally process satellite dmb transmission.
As a typical operation of wireless communication system, BS270 receives the reverse link signal from various mobile terminals 100.Mobile terminal 100 generally participates in call, information receiving and transmitting communicates with other type of.Each reverse link signal that certain base station 270 receives is processed in specific BS270.The data obtained are forwarded to relevant BSC275.BSC provides call resource distribution and the mobile management function of the coordination of soft switching process included between BS270.The data received also are routed to MSC280 by BSC275, and it provides the extra route service for forming interface with PSTN290.Similarly, PSTN290 and MSC280 forms interface, and MSC and BSC275 forms interface, and BSC275 correspondingly controls BS270 so that forward link signals to be sent to mobile terminal 100.
Based on above-mentioned mobile terminal hardware configuration and communication system, it is proposed to each embodiment of the inventive method.
Embodiment one
As it is shown on figure 3, first embodiment of the invention proposes a kind of antenna tuning method, described method includes step:
The signal of S10, reception amplifier output, and by tuning network, described signal is tuned for the first time；
S20, judgement tune the standing-wave ratio of signal for the first time whether more than default threshold value；
S30, if so, then progressively drive tuning network, it is thus achieved that best coupling tuning network parameter；Otherwise enter step S31, described signal is directly launched from antenna；
S40, by best coupling tuning network parameter, described first tuning signal is tuned again, and launch from antenna.
In the present embodiment, by Intelligent Measurement standing wave and tuning network is matched to the best so that standing-wave ratio is less, and the energy gone out by aerial radiation is more.
nullIn the present embodiment，Signal to be sent first passes through amplifier PA and is amplified being tuned network afterwards and launches from antenna，In the present invention，Bidirectional coupler is added after amplifier with tuning network，Reflection power coupled signal and incident power coupled signal it is coupled into certain attenuation ratio，The signal that coupling is come in is AC signal，Direct current collection just can be carried out after requiring over detection，Also need to after detection be filtered by low pass filter LPF，To reject other high frequency spurs，Direct current signal enters CPU arithmetic element from direct current acquisition module AD，CPU arithmetic element recognizes analog voltage by analog-digital converter，In the present embodiment，Described detecting circuit includes the first detecting circuit and the second detecting circuit，First detecting circuit is used for receiving reflection power coupled signal，Second detecting circuit is used for receiving incident power coupled signal，The first low pass filter is connected after described first detecting circuit，The first direct current acquisition module is connected after described first low pass filter，The reflected voltage value of reflection power coupled signal is sent to CPU arithmetic element by described first direct current acquisition module；Connecting the second low pass filter after described second detecting circuit, connect the second direct current acquisition module after described second low pass filter, the incident voltage value of incident power coupled signal is sent to CPU arithmetic element by described second direct current acquisition module；It is reflection coefficient that CPU arithmetic element calculates the ratio of reflected voltage value and incident voltage valueUtilize formulaTry to achieve standing-wave ratio VSWR, now, it is judged that standing-wave ratio whether more than default threshold value, then progressively drives tuning network, it is thus achieved that best coupling tuning network parameter；Otherwise, described signal is directly launched from antenna；In the ideal situation, standing-wave ratio represents when being 1 that described signal is entirely through antenna and launches, the energy not reflected, certainly this is a kind of perfect condition, and the threshold value preset in the present embodiment can be the slightly larger numerical value of a ratio 1, determined by tuning efficiency, it is possible to be preset in antenna transmission circuit, it is also possible to manually set.
In the present embodiment, tuning network is mainly made up of electric capacity framework and inductance framework, in the field of business, smith circle diagram is used to one of effective ways analyzing transmission line matching problem, inductance or electric capacity can progressively be controlled by the mobility according to smith circle diagram load impedance, such as: when being connected in parallel with a capacitor, impedance point will move to the smoother hour hands of conductance；When one electric capacity of series connection, impedance point will be mobile counterclockwise to resistance circle.Utilize the method for progressively connection in series-parallel reactance component to improve impedance matching, until load impedance up to standard make minimum.
Embodiment two
As shown in Figure 4, in the present embodiment, it is shown that step S20 includes:
S21, in real time or timing first tuning signal is carried out standing wave detection；
S22, by CPU arithmetic element calculate described standing wave standing-wave ratio；
S23, by described standing-wave ratio with preset threshold value compare.
In the present embodiment, the described standing-wave ratio by the CPU arithmetic element described standing wave of calculating includes:
From described first tuning signal, it is coupled into reflection power coupled signal and incident power coupled signal by bidirectional coupler；
The reflected voltage value of reflection power coupled signal is gathered by the first detecting circuit being sequentially connected with, the first low pass filter and the first direct current acquisition module；The incident voltage value of incident power coupled signal is gathered by the second detecting circuit being sequentially connected with, the second low pass filter and the second direct current acquisition module；
The ratio being calculated reflected voltage value and incident voltage value by CPU arithmetic element is reflection coefficientUtilize formulaTry to achieve standing-wave ratio VSWR.
Embodiment three
As it is shown in figure 5, the present invention further provides a kind of antenna tuning circuit, including:
Amplifier PA, is tuned to tunes signal for the first time for input signal is amplified and output to tuning network；
Whether testing circuit, be used for the standing-wave ratio judging described first tuning signal more than default threshold value；If so, tuning network is then progressively driven, it is thus achieved that best coupling tuning network parameter；
Tuning network, tunes for the first time for the signal that described amplifier is exported, and by best coupling tuning network parameter, described first tuning signal is tuned again.
In the present embodiment, described testing circuit includes: bidirectional coupler, the first detecting circuit, the first low pass filter LPF1 and the first direct current acquisition module AD1 being sequentially connected with, the second detecting circuit, the second low pass filter LPF2 and the second direct current acquisition module AD2, the CPU arithmetic element being sequentially connected with；
Wherein, bidirectional coupler, for being coupled into reflection power coupled signal and incident power coupled signal from described first tuning signal；
The first detecting circuit, the first low pass filter LPF1 and the first direct current acquisition module AD1 being sequentially connected with is for gathering the reflected voltage value of the reflection power coupled signal of bidirectional coupler output；
The second detecting circuit, the second low pass filter LPF2 and the second direct current acquisition module AD2 being sequentially connected with is for gathering the incident voltage value of the incident power coupled signal of bidirectional coupler output；
CPU arithmetic element is for calculating reflection coefficient and standing-wave ratio by described reflected voltage value and incident voltage value.
In the present embodiment, described CPU arithmetic element for calculating reflection coefficient and standing-wave ratio by described reflected voltage value and incident voltage value particularly as follows:
The ratio being calculated reflected voltage value and incident voltage value by CPU arithmetic element is reflection coefficientUtilize formulaTry to achieve standing-wave ratio VSWR.
In the present embodiment, described tuning network includes electric capacity framework and inductance framework.
Embodiment four
As shown in Figure 6, the present invention further provides a kind of antenna tuning unit, including:
Receiver module 10, for the signal of reception amplifier output, and sends described signal to tuning network；
Judge module 20, for judging that whether the standing-wave ratio tuning signal for the first time is more than default threshold value；
Matching module 30, for when standing-wave ratio is more than default threshold value, progressively driving tuning network, it is thus achieved that best coupling tuning network parameter；
Tuner module 40, the signal for described amplifier is exported carries out first tuning and is tuned signal for the first time, and by best coupling tuning network parameter, described first tuning signal is tuned again.
As it is shown in fig. 7, in the present embodiment, described judge module 20 includes:
Standing wave detection unit 21, for carrying out standing wave detection to described first tuning signal in real time or regularly；
Computing unit 22, for calculating the standing-wave ratio of described standing wave by CPU arithmetic element；
Comparing unit 23, for comparing described standing-wave ratio with the threshold value preset.
In the present embodiment, by Intelligent Measurement standing wave and tuning network is matched to the best so that standing-wave ratio is less, and the energy gone out by aerial radiation is more.
It should be noted that, in this article, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include the process of a series of key element, method, article or device not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or device.When there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of this key element, method, article or device.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art is it can be understood that can add the mode of required general hardware platform by software to above-described embodiment method and realize, hardware can certainly be passed through, but in a lot of situation, the former is embodiment more preferably.Based on such understanding, the part that prior art is contributed by technical scheme substantially in other words can embody with the form of software product, this computer software product is stored in a storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can be mobile phone, computer, server, air-conditioner, or the network equipment etc.) perform the method described in each embodiment of the present invention.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (10)
1. an antenna tuning method, it is characterised in that described method includes step:
The signal of reception amplifier output, and by tuning network, described signal is tuned for the first time；
Judge that whether the standing-wave ratio of first tuning signal is more than default threshold value；
If so, tuning network is then progressively driven, it is thus achieved that best coupling tuning network parameter；
Mate tuning network parameter by the best described first tuning signal is tuned again, and launch from antenna.
2. a kind of antenna tuning method according to claim 1, it is characterised in that judge whether the first standing-wave ratio tuning signal includes more than default threshold value:
Carry out standing wave detection in real time or regularly to first tuning signal；
The standing-wave ratio of described standing wave is calculated by CPU arithmetic element；
Described standing-wave ratio is compared with the threshold value preset.
3. a kind of antenna tuning method according to claim 2, it is characterised in that the described standing-wave ratio by the CPU arithmetic element described standing wave of calculating includes:
From described first tuning signal, it is coupled into reflection power coupled signal and incident power coupled signal by bidirectional coupler；
The reflected voltage value of reflection power coupled signal is gathered by the first detecting circuit being sequentially connected with, the first low pass filter and the first direct current acquisition module；The incident voltage value of incident power coupled signal is gathered by the second detecting circuit being sequentially connected with, the second low pass filter and the second direct current acquisition module；
The ratio being calculated reflected voltage value and incident voltage value by CPU arithmetic element is reflection coefficientUtilize formulaTry to achieve standing-wave ratio VSWR.
4. a kind of antenna tuning method according to claim 2, it is characterised in that described tuning network includes electric capacity framework and inductance framework.
5. an antenna tuning circuit, it is characterised in that including:
Amplifier, is tuned to tunes signal for the first time for input signal is amplified and output to tuning network；
Whether testing circuit, be used for the standing-wave ratio judging described first tuning signal more than default threshold value；If so, tuning network is then progressively driven, it is thus achieved that best coupling tuning network parameter；
Tuning network, tunes for the first time for the signal that described amplifier is exported, and by best coupling tuning network parameter, described first tuning signal is tuned again.
6. a kind of antenna tuning circuit according to claim 5, it is characterized in that, described testing circuit includes: bidirectional coupler, the first detecting circuit, the first low pass filter and the first direct current acquisition module being sequentially connected with, the second detecting circuit, the second low pass filter and the second direct current acquisition module, the CPU arithmetic element being sequentially connected with；
Wherein, bidirectional coupler, for being coupled into reflection power coupled signal and incident power coupled signal from described first tuning signal；
The first detecting circuit, the first low pass filter and the first direct current acquisition module being sequentially connected with is for gathering the reflected voltage value of the reflection power coupled signal of bidirectional coupler output；
The second detecting circuit, the second low pass filter and the second direct current acquisition module being sequentially connected with is for gathering the incident voltage value of the incident power coupled signal of bidirectional coupler output；
CPU arithmetic element is for calculating reflection coefficient and standing-wave ratio by described reflected voltage value and incident voltage value.
7. a kind of antenna tuning circuit according to claim 6, it is characterised in that described CPU arithmetic element for calculating reflection coefficient and standing-wave ratio by described reflected voltage value with incident voltage value particularly as follows:
The ratio being calculated reflected voltage value and incident voltage value by CPU arithmetic element is reflection coefficientUtilize formulaTry to achieve standing-wave ratio VSWR.
8. a kind of antenna tuning circuit according to claim 5, it is characterised in that described tuning network includes electric capacity framework and inductance framework.
9. an antenna tuning unit, it is characterised in that including:
Receiver module, for the signal of reception amplifier output, and sends described signal to tuning network；
Judge module, for judging that whether the standing-wave ratio tuning signal for the first time is more than default threshold value；
Matching module, for when standing-wave ratio is more than default threshold value, progressively driving tuning network, it is thus achieved that best coupling tuning network parameter；
Tuner module, the signal for described amplifier is exported carries out first tuning and is tuned signal for the first time, and by best coupling tuning network parameter, described first tuning signal is tuned again.
10. a kind of antenna tuning unit according to claim 9, it is characterised in that described judge module includes:
Standing wave detection unit, for carrying out standing wave detection to described first tuning signal in real time or regularly；
Computing unit, for calculating the standing-wave ratio of described standing wave by CPU arithmetic element；
Comparing unit, for comparing described standing-wave ratio with the threshold value preset.
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| CN201610040035.7A CN105743518B (en) | 2016-01-21 | 2016-01-21 | A kind of antenna tuning method and device |
| PCT/CN2016/113747 WO2017124908A1 (en) | 2016-01-21 | 2016-12-30 | Method of tuning antenna and device |
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| CN201610040035.7A CN105743518B (en) | 2016-01-21 | 2016-01-21 | A kind of antenna tuning method and device |
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| CN105743518B CN105743518B (en) | 2019-11-08 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106209272A (en) * | 2016-07-29 | 2016-12-07 | 中国电子科技集团公司第四十研究所 | A kind of based on double detection LTE signal level closed-loop control devices and method |
| CN106301603A (en) * | 2016-10-27 | 2017-01-04 | 北京小米移动软件有限公司 | Standing-wave ratio control method, device and electronic equipment |
| WO2017124908A1 (en) * | 2016-01-21 | 2017-07-27 | 努比亚技术有限公司 | Method of tuning antenna and device |
| CN108199742A (en) * | 2017-11-13 | 2018-06-22 | 深圳市万普拉斯科技有限公司 | Self-tuning method, self-tuning system and mobile terminal |
| CN111092295A (en) * | 2019-12-16 | 2020-05-01 | 闻泰通讯股份有限公司 | Antenna, antenna adjusting method, terminal and storage medium |
| CN112235014A (en) * | 2020-10-13 | 2021-01-15 | Oppo广东移动通信有限公司 | Radio frequency circuit adjusting method and device, electronic equipment and storage medium |
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| CN114665906A (en) * | 2022-01-26 | 2022-06-24 | 浙江天璇智控科技有限公司 | Intelligent beacon host |
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Families Citing this family (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938904A (en) * | 2011-08-15 | 2013-02-20 | 中兴通讯股份有限公司 | Standing-wave ratio detecting method, device and base station |
| CN103731167A (en) * | 2013-12-20 | 2014-04-16 | 天津光电通信技术有限公司 | Method for rapidly tuning impedance matching of antenna tuner |
| CN105009370A (en) * | 2013-03-06 | 2015-10-28 | K.M.W.株式会社 | Apparatus for tuning voltage standing wave ratio of base station system in wireless communication network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743518B (en) * | 2016-01-21 | 2019-11-08 | 努比亚技术有限公司 | A kind of antenna tuning method and device |
-
2016
- 2016-01-21 CN CN201610040035.7A patent/CN105743518B/en active Active
- 2016-12-30 WO PCT/CN2016/113747 patent/WO2017124908A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938904A (en) * | 2011-08-15 | 2013-02-20 | 中兴通讯股份有限公司 | Standing-wave ratio detecting method, device and base station |
| CN105009370A (en) * | 2013-03-06 | 2015-10-28 | K.M.W.株式会社 | Apparatus for tuning voltage standing wave ratio of base station system in wireless communication network |
| CN103731167A (en) * | 2013-12-20 | 2014-04-16 | 天津光电通信技术有限公司 | Method for rapidly tuning impedance matching of antenna tuner |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017124908A1 (en) * | 2016-01-21 | 2017-07-27 | 努比亚技术有限公司 | Method of tuning antenna and device |
| CN106209272A (en) * | 2016-07-29 | 2016-12-07 | 中国电子科技集团公司第四十研究所 | A kind of based on double detection LTE signal level closed-loop control devices and method |
| CN106301603A (en) * | 2016-10-27 | 2017-01-04 | 北京小米移动软件有限公司 | Standing-wave ratio control method, device and electronic equipment |
| US11265036B2 (en) | 2017-11-13 | 2022-03-01 | Oneplus Technology (Shenzhen) Co., Ltd. | Self-tuning method, self-tuning system and mobile terminal |
| CN108199742A (en) * | 2017-11-13 | 2018-06-22 | 深圳市万普拉斯科技有限公司 | Self-tuning method, self-tuning system and mobile terminal |
| CN111092295A (en) * | 2019-12-16 | 2020-05-01 | 闻泰通讯股份有限公司 | Antenna, antenna adjusting method, terminal and storage medium |
| CN111092295B (en) * | 2019-12-16 | 2023-04-07 | 闻泰通讯股份有限公司 | Antenna, antenna adjusting method, terminal and storage medium |
| CN112235014A (en) * | 2020-10-13 | 2021-01-15 | Oppo广东移动通信有限公司 | Radio frequency circuit adjusting method and device, electronic equipment and storage medium |
| CN112566297A (en) * | 2020-12-07 | 2021-03-26 | 清华四川能源互联网研究院 | Plasma light source driving system and method |
| CN112566297B (en) * | 2020-12-07 | 2021-12-07 | 清华四川能源互联网研究院 | Plasma light source driving system and method |
| CN114665906A (en) * | 2022-01-26 | 2022-06-24 | 浙江天璇智控科技有限公司 | Intelligent beacon host |
| CN115548682A (en) * | 2022-11-30 | 2022-12-30 | 成都天锐星通科技有限公司 | Phased array antenna and electronic equipment |
| CN115548682B (en) * | 2022-11-30 | 2023-03-14 | 成都天锐星通科技有限公司 | Phased array antenna and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017124908A1 (en) | 2017-07-27 |
| CN105743518B (en) | 2019-11-08 |
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