CN205584212U - Shortwave antenna tuning device - Google Patents
Shortwave antenna tuning device Download PDFInfo
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- CN205584212U CN205584212U CN201620284980.7U CN201620284980U CN205584212U CN 205584212 U CN205584212 U CN 205584212U CN 201620284980 U CN201620284980 U CN 201620284980U CN 205584212 U CN205584212 U CN 205584212U
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Abstract
The utility model provides a shortwave antenna tuning device is the shortwave antenna tuning device based on amplitude and the detection of standing -wave ratio complex, and the device is equipped with with the consecutive amplitude coupling ring and amplitude detection, directional coupling ring and standing -wave ratio detection, shortwave antenna tuning matching network and control and drive circuit of the quick -witted output signal of telecommunication of short wave transmitting to reach the flush bonding processor who links to each other respectively through the data line with above -mentioned circuit. Compared with the prior art, the utility model, its advantage lies in: improve tuning precision and harmonious speed, optimized the tuning control structure.
Description
Technical field
This utility model relates to antenna tuning unit, a kind of automatic tunable technology of compound short-wave antenna based on standing-wave ratio Yu amplitude detection.
Background technology
Short wave communication can realize the communication of distance after relying on the reflection for several times between ionosphere and ground, and seldom can be affected by topographical features.Short wave communication has important application at aspects such as outlying mountain area, rescue and relief work, emergency communication, military communications.Short-wave transmitter forms electromagnetic field radiation by antenna, it is desirable to antenna, to launching signal resonance, makes output electromagnetic field radiation strong, and operating distance is remote.Its frequency range of short wave communication is 1.6-30MHz, and coverage coefficient is about 20, and in this frequency range, the change of carrier frequency can cause the violent change of antenna impedance.When antenna does not mates with transmitter, can cause antenna mismatch, output declines, and affects the problems such as the steady operation of transmitter, reliability decrease, wave distortion.It is thus desirable to the parameter at antenna tuner regulation antenna match networking, make antenna be in resonant condition thus obtain maximum transmission power, between transmitter and antenna, reach resonance matching state.
Antenna tuner is the important component part of short wave communication equipment, development along with the modern hf radio communication new technique such as technology such as real time frequency selection, AFH, during short wave communication, signal(-) carrier frequency is by Rapid Variable Design, in order to improve communication distance and the communication quality of short-wave radio set, adapt to the development of new technique and enable short-wave radio set outside radiated radio ripple in maximum efficiency in full frequency band, it is necessary to make to be constantly between radio station power amplifier and antenna good tuning state.The tuned speed of automatic antenna tuner in short wave communication radio station, tuning precision, stability are proposed requirements at the higher level simultaneously.Antenna tuner is studied and just seems extremely important with improving.This utility model, based on above-mentioned analysis, is devoted to find more effective technique ways and means.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of short-wave antenna tuner based on amplitude and standing-wave ratio compound detection, to realize the short-wave antenna quick resonance matching to transmitter output transmitting signal.
This utility model solves its technical problem and uses following technical scheme:
The short-wave antenna tuner that this utility model provides, it it is a kind of short-wave antenna tuner based on amplitude and standing-wave ratio compound detection, this device is provided with the amplitude coupling ring and amplitude detection, directional couple ring and standing-wave ratio detection, short-wave antenna resonance matching network and controlling and driving circuits being sequentially connected with the short-wave transmitter output signal of telecommunication, and the flush bonding processor being connected respectively by data wire with foregoing circuit.
Described short-wave antenna resonance matching network, is made up of electric inductance array, capacitor array and tuner control circuit；Wherein the inductance in electric inductance array uses the series connection access way of weight-coefficient compromise, and the electric capacity in capacitor array uses the access way in parallel of weight-coefficient compromise.
Described short-wave antenna resonance matching network, electric inductance array is serially connected between the output of transmitter and antenna by it by the control signal of flush bonding processor, capacitor array is attempted by power amplifier outfan or antenna incoming end by the control signal of flush bonding processor is changeable, constitute Γ type and two kinds of resonance matching network structures of anti-Γ type, to realize the resonance matching in whole short wave ranges.
Described amplitude coupling ring and amplitude detection circuit, be placed in the outfan of transmitter, and the alternating voltage of amplitude coupling ring secondary induction is through amplitude detection circuit detected amplitude size；The primary that wherein transmitter output connecting line couples through shortwave coupling magnet ring as amplitude, secondary induction output filters through filter circuit after sending diode rectification, the A/D translation circuit of sending processor.
Described directional couple ring and standing-wave ratio testing circuit, its by be serially connected with directional coupler after amplitude coupling ring and align respectively, backward power carries out the logafier AD8307 of logarithm measurement and forms；The A/D translation circuit of flush bonding processor is sent in its output respectively after π type resistor network is detected by logafier.
Described amplitude detection circuit constitutes compound detection circuit with standing-wave ratio testing circuit, and its shortwave amplitude exported by amplitude coupling ring and the reflection of directional couple ring output, incidence wave send flush bonding processor respectively after detection and filtering.
Described flush bonding processor, uses STM32F103C8T6 chip.
This utility model is connected to frequency detection circuit at flush bonding processor input, and this testing circuit uses the design of EPM570100C5 chip.
This utility model compared with prior art has a following major advantage:
1. use amplitude and standing-wave ratio compound detection method optimizing tuning control structure:
Send embedded processing by the amplitude recorded with directional couple ring by amplitude coupling ring and standing-wave ratio simultaneously, have the advantages that to take into account both advantages, obtain output amplitude maximum, standing-wave ratio optimal conditions, meet aerial radiation the strongest, impedance matching optimal conditions simultaneously.
2. inductance, capacitor array matching network and control structure thereof improve tuning precision:
Flush bonding processor exports 17 binary switch signals and is scanned 8 electric inductance array by weighting ratio distribution, 8 capacitor arrays distributed by weighting ratio search and controls to drive respectively, achieve 65536 kinds of different electric capacity, inductance value, the switching of end points is accessed again by electric capacity, realize 131072 kinds of tuning combinations altogether, substantially increase tuning precision.
3. the starting point of scanning search is set by frequency measurement and scope improves tuned speed:
Embedded Ju surveyed shortwave modulated wave carrier frequency, starting point and the sweep limits thereof of scanning search are set, the sweep limits of full frequency band is narrowed down to a certain specific frequency range, greatly reduces the time of the combined value of search matching network electric capacity, electric inductance array, improve automatic tuned speed.
Accompanying drawing explanation
Fig. 1 is a kind of short-wave antenna tuner the general frame based on amplitude and standing-wave ratio compound detection.
Fig. 2 is short-wave antenna inductance, capacitor array matching network and controlling and driving circuits structure chart.
Fig. 3 is amplitude and standing-wave ratio compound detection theory diagram.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but does not limit this utility model.
The short-wave antenna tuner based on amplitude and standing-wave ratio compound detection that this utility model provides, its structure is as shown in Figure 1 to Figure 3, it is provided with the amplitude coupling ring and amplitude detection, directional couple ring and standing-wave ratio detection, short-wave antenna resonance matching network and controlling and driving circuits being sequentially connected with the short-wave transmitter output signal of telecommunication, and the flush bonding processor being connected respectively by data wire with foregoing circuit.
Described short-wave antenna resonance matching network, it is made up of electric inductance array, capacitor array and tuner control circuit, wherein: the inductance in electric inductance array uses the series connection access way of weight-coefficient compromise, and the electric capacity in capacitor array uses the access way in parallel of weight-coefficient compromise.
Inductive bank is serially connected between the output of transmitter and antenna by described short-wave antenna resonance matching network structure by the control signal of flush bonding processor, capacitance group is attempted by power amplifier outfan or antenna incoming end by the control signal of flush bonding processor is changeable, constitute Γ type and two kinds of resonance matching network structures of anti-Γ type, to realize the resonance matching in whole short wave ranges.
Described amplitude coupling ring and amplitude detection circuit, be placed in the outfan of transmitter, and the alternating voltage of amplitude coupling ring secondary induction is through amplitude detection circuit detected amplitude size.Wherein: the primary that transmitter output connecting line couples through shortwave coupling magnet ring as amplitude, secondary induction output filters through filter circuit after sending diode rectification, the A/D translation circuit of sending processor.
Described directional couple ring and standing-wave ratio testing circuit, by be serially connected with directional coupler after amplitude coupling ring and align respectively, backward power carries out the logafier AD8307 of logarithm measurement and forms, wherein: the transformator of forward and reverse power constitutes directional coupler, the A/D translation circuit of flush bonding processor is sent in its output respectively after π type resistor network is detected by logafier.
Above-mentioned amplitude detection constitutes compound detection circuit with standing-wave ratio detection, and reflection, incidence wave that its shortwave amplitude exported by amplitude coupling ring and directional couple ring export send flush bonding processor through detection respectively after filtering.
Described flush bonding processor uses STM32F103C8T6.During short-wave transmitter work, flush bonding processor root Ju surveyed shortwave modulated wave carrier frequency, starting point and the scope thereof of scanning search are set, this processor passes through the controlling and driving circuits inductance to short-wave antenna resonance matching network, capacitor array carries out binary digit scanning, it is respectively induced the transmitting signal delivering to short-wave antenna by amplitude coupling ring and directional couple ring while scanning, inductance when weighed combination, when capacitance is exactly resonance matching value, the amplitude detected is maximum, standing-wave ratio is closest to 1, processor controls drive circuit and keeps matching network assembled state, short-wave antenna is made to be in resonance matching status, launch power efficient transmission, realize the short-wave antenna automatic resonance matching to launching signal.
Be connected to frequency detection circuit at flush bonding processor input, this testing circuit by CPLD design form, its model is EPM570100C5, wherein: input into short-wave transmitter through decay Shape correction after square-wave signal, output be connected to processor.
Fig. 2 gives the inductance by weighting ratio distribution, the matching network of capacitor array composition and controlling and driving circuits structure chart.Using series connection access way in electric inductance array, total inductance is equal to each shunt inductance sum.If branch road minimum inductance L1=L, then adjacent inductive is L2=2L, L3=2L2=4L ... by that analogy, by controlling Ka1～Ka8, can obtain 256 kinds of combination inductance value；Electric capacity in capacitor array then uses access way in parallel, and total capacitance is also equal to each branch road electric capacity sum.Adjacent capacitor is C1=C, C2=2C1=2C, C3=2C2=4C ... by that analogy, by controlling Kb1～Kb8, capacitor array also has 256 kinds of combined values, and capacitor array switching can be attempted by power amplifier output or antenna incoming end by controlling K by electric capacity, constitute Γ type and two kinds of antenna tuning matching network structures of anti-Γ type, flush bonding processor and controlling and driving circuits output 8 binary switch signals of two-way thereof realize electric inductance array respectively, 65536 kinds of various combination values of capacitor array, add the switch K switching to electric capacity incoming end, 17 binary systems can realize 131072 kinds of tuning combinations altogether.
Fig. 3 is amplitude and standing-wave ratio compound detection theory diagram, amplitude coupling ring T3 is placed in the outfan of transmitter, be equivalent to the bottom of short-wave antenna, because antenna is to when launching signal resonance, antenna base current is maximum, the alternating current of antenna bottom is converted into alternating voltage output by amplitude coupling ring, the primary that the outfan of transmitter couples through shortwave coupling magnet ring as amplitude, and the anti-phase output of secondary Double-wire parallel wound on magnet ring, during the carrier wave resonance of shortwave modulated wave transmitter sent here when the loop that matching network and antenna are constituted, the alternating voltage of amplitude coupling ring sensing is the highest, output is through D1, after D2 all wave rectification, by C1, the filter circuit filtering that C2 and R7 is constituted, after being regulated by potentiometer W and amplified again, deliver to the A/D changer of flush bonding processor.When processor scanning is with when controlling drive circuit, the carrier wave resonance of the shortwave modulated signal that transmitter is exported by the matching network making inductance, capacitor array constitute, and the amplitude maximum detected, now antenna is in resonance matching status, emission effciency height.
Directional coupler is the front-end module of standing-wave ratio testing circuit, wherein T1, T2 are respectively the transformer coil of the forward and reverse power forming directional coupler, its function is to be sampled by a certain percentage by the forward and reverse transmission signal in main signal loop, exports two sample port.R1, R2 and R3 form forward power π type resistor network, and R4, R5 and R6 form backward power π type resistor network, and they are respectively the load of forward and reverse power output sampling circuit, play the most again the effect of regulation sampled signal watt level.Power detection uses the demodulating logarithmic amplifier AD8307 based on continuous compress technique of ADI company.It has the characteristic that DC～500MHz bandwidth, 92dB dynamic range, 25mV/dB conversion ratio and low-voltage single supply are powered.The power of incidence wave and echo is after AD8307 detects, and two paths of signals is calculated voltage standing wave ratio through flush bonding processor after being changed by A/D changer respectively again.
Frequency detection module measures the carrier frequency of shortwave modulated wave, for determining starting point and the scope thereof of scanning search, owing to using the mode of the corresponding tuner parameters of each frequency range.Step Frequency segment limit is wider, design is a stepping frequency range with 100KHz, the modulated wave of 1.6MHz～30MHz short frequency scope is measured carrier frequency, it is desirable to the resolution of 0.1MHz, so greatly reducing the requirement to frequency counting precision, the frequency counting skew that modulation causes is negligible.Frequency detecting is completed by CPLD, the square-wave signal after inputting as decay Shape correction.After recording respective frequencies f, f is converted to scan memorizer high address value by processor, and this address determines scan start point and scope thereof, and scanning accuracy is determined by the low order address arranged.
The above-mentioned short-wave antenna tuner based on amplitude and standing-wave ratio compound detection that this utility model provides, its work process is: during short-wave transmitter work, processor is by controlling drive circuit to inductance, capacitor array carries out binary digit scanning, it is respectively induced the transmitting signal delivering to short-wave antenna by amplitude coupling ring and directional couple ring while scanning, detect now through inductance, the matching network that capacitor array is constituted delivers to amplitude and the standing-wave ratio of antenna, inductance when weighed combination, when capacitance is exactly resonance matching value, the amplitude detected is maximum, standing-wave ratio is closest to 1, processor controls drive circuit and keeps matching network assembled state, short-wave antenna is made to be in resonance matching status, realize the short-wave antenna resonance matching to short-wave transmitter output signal.
Claims (8)
1. a short-wave antenna tuner, is characterized in that a kind of short-wave antenna based on amplitude and standing-wave ratio compound detection tunes
Device, this device is provided with the amplitude coupling ring and amplitude detection, directional couple being sequentially connected with the short-wave transmitter output signal of telecommunication
Ring and standing-wave ratio detection, short-wave antenna resonance matching network and controlling and driving circuits, and by data wire respectively with above-mentioned
The flush bonding processor that circuit is connected.
Short-wave antenna tuner the most according to claim 1, it is characterised in that described short-wave antenna resonance matching net
Network, is made up of electric inductance array, capacitor array and tuner control circuit；Inductance in described electric inductance array uses weight-coefficient compromise
Series connection access way, and electric capacity in capacitor array uses the access way in parallel of weight-coefficient compromise.
Short-wave antenna tuner the most according to claim 2, it is characterised in that described short-wave antenna resonance matching net
Network, electric inductance array is serially connected between the output of transmitter and antenna by it by the control signal of flush bonding processor, electric capacity battle array
Arrange changeable power amplifier outfan or the antenna incoming end of being attempted by of control signal by flush bonding processor, constitute Γ type and anti-Γ
Two kinds of resonance matching network structures of type, to realize the resonance matching in whole short wave ranges.
Short-wave antenna tuner the most according to claim 1, it is characterised in that described amplitude coupling ring is examined with amplitude
Slowdown monitoring circuit, is placed in the outfan of transmitter, and the alternating voltage of amplitude coupling ring secondary induction is through amplitude detection circuit detected amplitude
Size；The primary that described transmitter output connecting line couples through shortwave coupling magnet ring as amplitude, secondary induction output send two
Filter through filter circuit after the pipe rectification of pole, the A/D translation circuit of sending processor.
Short-wave antenna tuner the most according to claim 1, it is characterised in that described directional couple ring and standing-wave ratio
Testing circuit, its by the directional coupler being serially connected with after amplitude coupling ring and align respectively, backward power carries out logarithm measurement
Logafier AD8307 composition；Its output, respectively after π type resistor network is detected by logafier, is sent embedded
The A/D translation circuit of processor.
Short-wave antenna tuner the most according to claim 1, it is characterised in that described amplitude detection circuit and standing wave
Constituting compound detection circuit than testing circuit, it is anti-that its shortwave amplitude exported by amplitude coupling ring and directional couple ring export
Penetrate, incidence wave send flush bonding processor through detection respectively after filtering.
Short-wave antenna tuner the most according to claim 1, it is characterised in that described flush bonding processor, uses
STM32F103C8T6 chip.
Short-wave antenna tuner the most according to claim 1, is characterized in that being connected to frequency at flush bonding processor input
Rate testing circuit, this testing circuit uses the design of EPM570100C5 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620284980.7U CN205584212U (en) | 2016-04-08 | 2016-04-08 | Shortwave antenna tuning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620284980.7U CN205584212U (en) | 2016-04-08 | 2016-04-08 | Shortwave antenna tuning device |
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| CN201620284980.7U Expired - Fee Related CN205584212U (en) | 2016-04-08 | 2016-04-08 | Shortwave antenna tuning device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732424A (en) * | 2017-11-08 | 2018-02-23 | 熊猫电子集团有限公司 | The antenna tuning network structure and method of impedance matching are realized for shortwave loop antenna |
| CN109194342A (en) * | 2018-08-06 | 2019-01-11 | Oppo广东移动通信有限公司 | A kind of tuning completely inegrated circuit and tuning methods, terminal and storage medium |
| CN111049538A (en) * | 2019-12-31 | 2020-04-21 | 陕西烽火电子股份有限公司 | Method for improving antenna radiation based on antenna tuner output current detection |
| CN114866096A (en) * | 2022-04-15 | 2022-08-05 | 广州海格通信集团股份有限公司 | Antenna impedance tuning method, antenna impedance tuning device, terminal equipment and storage medium |
-
2016
- 2016-04-08 CN CN201620284980.7U patent/CN205584212U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732424A (en) * | 2017-11-08 | 2018-02-23 | 熊猫电子集团有限公司 | The antenna tuning network structure and method of impedance matching are realized for shortwave loop antenna |
| CN109194342A (en) * | 2018-08-06 | 2019-01-11 | Oppo广东移动通信有限公司 | A kind of tuning completely inegrated circuit and tuning methods, terminal and storage medium |
| CN109194342B (en) * | 2018-08-06 | 2020-11-03 | Oppo广东移动通信有限公司 | Tuning full integrated circuit, tuning method, terminal and storage medium |
| CN111049538A (en) * | 2019-12-31 | 2020-04-21 | 陕西烽火电子股份有限公司 | Method for improving antenna radiation based on antenna tuner output current detection |
| CN114866096A (en) * | 2022-04-15 | 2022-08-05 | 广州海格通信集团股份有限公司 | Antenna impedance tuning method, antenna impedance tuning device, terminal equipment and storage medium |
| CN114866096B (en) * | 2022-04-15 | 2023-09-01 | 广州海格通信集团股份有限公司 | Antenna impedance tuning method and device, terminal equipment and storage medium |
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Legal Events
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20200408 |
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| CF01 | Termination of patent right due to non-payment of annual fee |