CN205749729U - A kind of radio-frequency antenna standing-wave ratio automatic adjustment system - Google Patents
A kind of radio-frequency antenna standing-wave ratio automatic adjustment system Download PDFInfo
- Publication number
- CN205749729U CN205749729U CN201620533771.1U CN201620533771U CN205749729U CN 205749729 U CN205749729 U CN 205749729U CN 201620533771 U CN201620533771 U CN 201620533771U CN 205749729 U CN205749729 U CN 205749729U
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- radio
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Abstract
This utility model provides a kind of radio-frequency antenna standing-wave ratio automatic adjustment system, including radio-frequency antenna, tested rotating platform device, the first optical-electric module, the second optical-electric module, radiofrequency signal module and control device；Radiofrequency signal module is used for generating radiofrequency signal and is sent to radio-frequency antenna, radiofrequency signal module is additionally operable to receive the feedback signal of radio-frequency antenna, and calculate its standing-wave ratio, then it is sent to the numerical value of standing-wave ratio control device, control device and control the motion of tested rotating platform device according to the numerical value of standing-wave ratio, thus control the flexible of radio-frequency antenna, then reach to control the purpose of standing-wave ratio；Tested rotating platform device provided by the utility model meets the standard-required of electromagnetic compatibility test, it is placed in anechoic chamber, using, experimenter only need to determine the frequency of test signal, control device and can automatically adjust antenna length to reach the standing-wave ratio of test request, greatly reduce the workload of experimenter, improve conventional efficient.
Description
Technical field
This utility model relates to electromagnetic compatibility test field, particularly to the radio-frequency antenna standing wave for electromagnetic compatibility test
Compare automatic adjustment system.
Background technology
Along with the development of science and technology, the electronic devices and components used in the car get more and more, the portable electronic that user carries
Product is also continuously increased, and this results in vehicle can exist the electromagnetic interference signal of various frequency range under steam, and therefore car load is anti-
Electromagnetic interference performance just becomes the important indicator guaranteeing vehicle safety.
According to the requirement of the associated test standards of electromagnetic compatibility test, for the radio-frequency antenna of electromagnetic compatibility test, in reality
When testing, it should the standing-wave ratio of the signal meeting test frequency range is not more than the requirement of standard value.Owing to holding concurrently at the electromagnetism of test car load
During capacitive energy, need to use the test signal of various frequency range, therefore to meet the standing-wave ratio requirement of testing standard, experimenter
Need to prepare the antenna of various different length in case using, and owing to the testing time of single is comparatively short, often have only to several
Second just can complete, experimenter needs to pass in and out anechoic chamber, frequently and carries out antenna replacement operation, which results in whole reality
The operation tested is the most loaded down with trivial details, and the debugging generally requiring for ten a few minutes just can once be tested so that the effect of whole experiment
Rate is low.
Utility model content
The purpose of this utility model is to overcome prior art not enough, it is provided that a kind of radio frequency sky for electromagnetic compatibility test
Line standing-wave ratio automatic adjustment system.
This utility model uses following technical scheme for achieving the above object:
A kind of radio-frequency antenna standing-wave ratio automatic adjustment system, including radio-frequency antenna, tested rotating platform device, the first photoelectricity mould
Block, the second optical-electric module, radiofrequency signal module and control device；
Wherein, described radio-frequency antenna includes telescoping mechanism and signaling interface；
Described tested rotating platform device is connected with the telescoping mechanism of described radio-frequency antenna, for adjusting the length of described radio-frequency antenna
Degree, described tested rotating platform device also one end with described first optical-electric module is connected, the other end of described first optical-electric module and
One end of described second optical-electric module is connected, and the other end of described second optical-electric module is connected with described control device；
Described radiofrequency signal module is connected with the signaling interface of described radio-frequency antenna, and described radiofrequency signal module is also with described
Control device to be connected；
Described radiofrequency signal module is for launching the radiofrequency signal that test needs, described radiofrequency signal to described radio-frequency antenna
Module is additionally operable to receive the feedback signal of described radio-frequency antenna, and calculates the standing-wave ratio of described radio-frequency antenna, then will calculate
The standing-wave ratio numerical value gone out is sent to described control device；
Standing-wave ratio numerical generation the first control instruction and second that described control device sends according to described standing-wave meter is controlled
System instruction, and described first control instruction is sent to described tested rotating platform device, described second control instruction is sent to institute
Stating radiofrequency signal module, described tested rotating platform device controls the flexible of described radio-frequency antenna according to the first control instruction received
The motion of mechanism, described radiofrequency signal module changes mode of operation according to the second control instruction received.
When using system provided by the utility model to carry out electromagnetic compatibility test, described radio-frequency antenna, described antenna
Adjusting apparatus and described first optical-electric module are placed in anechoic chamber, described second optical-electric module, described radiofrequency signal module
And described control device is positioned at outside anechoic chamber,.
In this utility model one embodiment, described tested rotating platform device includes motor, electric machine controller and shielding case；
Wherein, described motor and described electric machine controller are arranged in described shielding case, described motor and described radio frequency
The telescoping mechanism of antenna be connected, be used for driving the upper and lower motion of described telescoping mechanism, described motor also with described electric machine controller
Being connected, described electric machine controller is also connected with described first optical-electric module, and the first control instruction of described control device passes through institute
Stating the second optical-electric module and be sent to described first optical-electric module, this instruction is sent to described motor control by described first optical-electric module
Device processed, described electric machine controller controls the motion of described motor according to the first control instruction of described control module.
In this utility model one embodiment, described radiofrequency signal module includes signal source, power amplifier, radio-frequency (RF) switch
And standing-wave meter；
Wherein, described signal source is connected with one end of described power amplifier, and the other end of described power amplifier is simultaneously
It is connected with the first input end of the input of described radio-frequency (RF) switch and described standing-wave meter, the control end of described radio-frequency (RF) switch and institute
Stating control device to be connected, the first outfan of described radio-frequency (RF) switch is connected with the signaling interface of described radio-frequency antenna, described radio frequency
Second outfan of switch is connected with the second input of described standing-wave meter, the outfan of described standing-wave meter and described control device
It is connected；
Described signal source is used for generating radiofrequency signal, and described power amplifier is for amplifying the radio frequency that described signal source generates
Signal, described standing-wave meter is for calculating the standing-wave ratio of described radio-frequency antenna, and standing-wave ratio numerical value is sent to described control device,
Standing-wave ratio numerical generation the first control instruction that described control device sends according to described standing-wave meter and the second control instruction, and
Described first control instruction is sent to described tested rotating platform device, described second control instruction is sent to described radio frequency and opens
Closing, described radio-frequency (RF) switch is according to the control instruction switching signal path of described control device；When described radio-frequency (RF) switch switches to
One outfan, the radiofrequency signal that described signal source generates sends to described radio-frequency antenna；When described radio-frequency (RF) switch switches to second
Outfan, is sent to the feedback signal of described radio-frequency antenna in standing-wave meter.
In this utility model one embodiment, described radiofrequency signal module is integrated in Network Analyzer.
The beneficial effects of the utility model: the electricity of radio-frequency antenna standing-wave ratio automatic adjustment system provided by the utility model
Magnetic disturbance is little, meets the requirement about auxiliary equipment of the electromagnetic compatibility test standard, can be integrally placed in anechoic chamber, use, experiment
Personnel only need to determine the frequency of test signal, and controller will adjust the length of antenna automatically, to reach the standing wave of test request
Ratio requires, greatly reduces the workload of experimenter, improves the efficiency of experiment, and without preparing to overlap sky during experiment more
Line, decreases experimental cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is tested rotating platform device of the present utility model and the structural representation of radio-frequency antenna；
Fig. 3 is the structural representation of radiofrequency signal module of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is described further by specific embodiment, illustrative examples therein
And explanation is only used for explaining this utility model, but it is not intended as restriction of the present utility model.
As it is shown in figure 1, the structure for a kind of radio-frequency antenna standing-wave ratio automatic adjustment system provided by the utility model is shown
It is intended to, including radio-frequency antenna 10, tested rotating platform device 20, radiofrequency signal module 30, the first optical-electric module 40, the second optical-electric module
50, control device 60；Wherein, radio-frequency antenna 10 is connected with tested rotating platform device 10, tested rotating platform device 20 also with the first photoelectricity
One end of module 40 is connected, and the other end of the first optical-electric module 40 and one end of the second optical-electric module 50 are connected by optical fiber, the
The other end of two optical-electric modules 50 is connected with controlling device 60, controls device 60 one end also with radiofrequency signal module 30 and is connected,
The other end of radiofrequency signal module 30 is connected by radio-frequency cable with radio-frequency antenna 10.Radiofrequency signal module 30 is used for generating radio frequency
Signal, is concurrently delivered to radio-frequency antenna 10, and radiofrequency signal module 30 is additionally operable to receive the feedback signal of radio-frequency antenna 10 simultaneously, and
Calculating the standing-wave ratio of radio-frequency antenna 10, the standing-wave ratio numerical value calculated is sent to control device 60 by radiofrequency signal module 30,
Control device 60 to be contrasted with preset value by the standing-wave ratio numerical value received, and generate the first control instruction according to comparing result
With the second control instruction；Wherein, the first control instruction is sent to antenna by the second optical-electric module 50 and the first optical-electric module 40
Adjusting apparatus 20, controls the motion of antenna for tested rotating platform device 20 according to the first control instruction received；Second controls
Instruction is sent to radiofrequency signal module 30, is used for controlling radiofrequency signal module 30 and is operated in pickup mode or output mode.
As in figure 2 it is shown, radio-frequency antenna 10 includes telescoping mechanism 11, signaling interface 12；Tested rotating platform device 20 includes motor
21, electric machine controller 22, shielding case 23；Wherein, radio-frequency antenna 10 is fixed on shielding case 23, both junction insulant
Isolating and fix, telescoping mechanism 11 is made up of nonmetallic materials, one end of telescoping mechanism 11 and the telescopable portion of radio-frequency antenna
Circuit, the other end of telescoping mechanism 11 is connected with the armature spindle of motor 21, when motor 21 rotates forward or backwards through shielding case
Time drive telescoping mechanism 11 to be moved upwardly or downwardly, thus adjust the length of radio-frequency antenna 10, signaling interface 12 and radiofrequency signal
Module 30 is connected by radio-frequency cable, is placed in shielding case 23 for transmitting radio frequency signal, motor 21 and electric machine controller 22
In, the outfan of electric machine controller 22 is connected with the input of motor 21, for controlling rotating speed and the direction of motor 21, motor control
One end controlling end and the first optical-electric module 40 of device 22 processed is connected, for the control instruction of receiving control device 60.
With as it is shown on figure 3, radiofrequency signal module 30 includes signal source 31, power amplifier 32, radio-frequency (RF) switch 33, standing-wave meter
34, wherein the signal output part of signal source 31 is connected with the input of power amplifier 32, and the outfan of power amplifier 32 is same
Time be connected with the input of radio-frequency (RF) switch 33 and the first input end of standing-wave meter 34, the control end of radio-frequency (RF) switch 33 with control dress
Putting 60 to be connected, the first outfan of radio-frequency (RF) switch 33 is connected with signaling interface 12, the second outfan of radio-frequency (RF) switch 33 and standing wave
Second input of meter 34 is connected, and the outfan of standing-wave meter 34 is connected with controlling device 60.When radio-frequency (RF) switch 33 is switched to first
During outfan, the signal of signal source 31 output is sent in radio-frequency antenna 10 after power amplifier 32 amplifies；When radio frequency is opened
When pass 33 is switched to the second outfan, the feedback signal of radio-frequency antenna 10, in radio-frequency (RF) switch 33 is sent to standing-wave meter 34, is stayed
Ripple meter 34 calculates the standing wave of radio-frequency antenna 10 according to the primary signal that the feedback signal received and power amplifier 32 send
Ratio, and will show that standing-wave ratio numerical value is sent to control in device 60.
In one embodiment, a kind of radio-frequency antenna standing-wave ratio automatic adjustment system provided by the utility model is used
When testing, radio-frequency antenna 10, tested rotating platform device 20 and the first optical-electric module 40 be positioned in anechoic chamber, radiofrequency signal
Module the 30, second optical-electric module 50 and control device 60 are positioned at outside anechoic chamber, the first optical-electric module 40 and the second photoelectricity mould
Block 50 forms Phototube Coupling system, for transmitting the control signal inside and outside anechoic chamber, thus avoids the electricity outside anechoic chamber,
Magnetic disturbance introduces in darkroom.When test, experimenter control device 60 inputs the standing-wave ratio preset value of requirement of experiment and
Sampling period, and operate the radiofrequency signal that signal source 31 generation experiment needs, signal source 31 sends the signal to power amplification
Device 32 is amplified processing, and the signal after power amplifier 32 will amplify sends to radio-frequency (RF) switch 33 and standing-wave meter 34, controls dress
Put 60 and generate a contrary switching control instruction every a sampling period, and be sent to radio-frequency (RF) switch 33, make radio-frequency (RF) switch
33 toggle between the first outfan and the second outfan, and when radio-frequency (RF) switch 33 switches to the first outfan, radio frequency is opened
Close 33 to be sent to the signaling interface 12 of radio-frequency antenna 10 by the first outfan by the signal received, radio-frequency antenna 10 simultaneously
Feedback signal sent to radio-frequency (RF) switch 33 by signaling interface 12；When radio-frequency (RF) switch 33 switches to the second outfan, penetrate
The feedback signal received is sent to standing-wave meter 34 by frequency switch 33, and standing-wave meter 34 is according to the feedback signal received and power
The primary signal that amplifier 32 sends calculates the standing-wave ratio of radio-frequency antenna 10, and sends the standing-wave ratio numerical value calculated to control
Device 60 processed, controls device 60 and instructs according to the standing-wave ratio numerical generation tested rotating platform received, and instruct tested rotating platform with electricity
The mode of signal is sent to the second optical-electric module 50, and the signal of telecommunication received is converted into optical signal by the second optical-electric module 50, and
Being sent to the first optical-electric module 40, the optical signal received is converted into the signal of telecommunication by the first optical-electric module 40, and by tested rotating platform
Instruction is sent in electric machine controller 22, and electric machine controller 22 controls the rotation of motor 21 according to the tested rotating platform instruction received,
Motor 21 drives telescoping mechanism 11 to move, thus changes the length of radio-frequency antenna 10, then adjusts the standing-wave ratio of antenna；On repeating
State process, during until the standing-wave ratio numerical value that control device 60 receives is less than preset value, controls device 60 generation switch switching and refer to
Order, and be sent in radio-frequency (RF) switch 33, make radio-frequency (RF) switch 33 switch to the first outfan, and remain stationary as, same to timed unit
By sound, flash of light or other modes, 60 notify that the adjustment of experimenter's standing-wave ratio is complete.
In another embodiment of this utility model, radiofrequency signal module 30 is integrated in Network Analyzer, wherein, and network
The signal output part of analyser is connected with the signaling interface 12 of radio-frequency antenna 10 by radio-frequency cable, be used for sending radiofrequency signal with
The feedback signal of reception antenna；The communication terminal of Network Analyzer is connected with controlling device 60, for sending the standing-wave ratio calculated
Numerical value.When experiment, experimenter is input vswr preset value in controlling device 60, and then operation Network Analyzer generates
The radiofrequency signal that experiment needs, the radiofrequency signal of generation is sent to the signal of radio-frequency antenna 10 by Network Analyzer by outfan
Interface, receives the feedback signal of radio-frequency antenna 10 simultaneously, and calculates its standing-wave ratio, then by communication terminal by staying of calculating
Bob numerical value is sent to control device 60, controls device 60 and instructs according to the standing-wave ratio numerical generation tested rotating platform received, and
To be sent in tested rotating platform device by Phototube Coupling system, the standing-wave ratio numerical value received when control device 60 is less than default
During value, control device 60 and generate control instruction and be sent in Network Analyzer by communication terminal, make Network Analyzer stop inspection
Survey standing-wave ratio, notify that experimenter's standing-wave ratio adjusts with timed unit 60 by sound, flash of light or other modes complete.
Obviously, above-described embodiment is only used to clearer expression technical solutions of the utility model example, and
The non-restriction to this utility model embodiment.To those skilled in the art, the most all right
Making other changes in different forms, without departing from the concept of the premise utility, these broadly fall into this practicality
Novel protection domain.Therefore the protection domain of this utility model patent should be as the criterion with claims.
Claims (5)
1. a radio-frequency antenna standing-wave ratio automatic adjustment system, it is characterised in that include radio-frequency antenna, tested rotating platform device,
One optical-electric module, the second optical-electric module, radiofrequency signal module and control device；
Wherein, described radio-frequency antenna includes telescoping mechanism and signaling interface；
Described tested rotating platform device is connected with the telescoping mechanism of described radio-frequency antenna, and described tested rotating platform device is also with described first
One end of optical-electric module is connected, and the other end of described first optical-electric module is connected with one end of described second optical-electric module, described
The other end of the second optical-electric module is connected with described control device；
Described radiofrequency signal module is connected with the signaling interface of described radio-frequency antenna, described radiofrequency signal module also with described control
Device is connected；
Described radiofrequency signal module is used for generating radiofrequency signal, and sends to the transmitting of described radio-frequency antenna, described radiofrequency signal mould
Block is additionally operable to receive the feedback signal of described radio-frequency antenna, and calculates the standing-wave ratio of described radio-frequency antenna, then will calculate
Standing-wave ratio numerical value be sent to described control device；
Described control device is according to standing-wave ratio numerical generation the first control instruction received and the second control instruction, and by institute
State the first control instruction and be sent to described tested rotating platform device by described second optical-electric module and the first optical-electric module, by described
Second control instruction is sent to described radiofrequency signal module, and described tested rotating platform device is according to the first control instruction control received
Making the telescoping mechanism motion of described radio-frequency antenna, described radiofrequency signal module is according to the second control instruction change work received
Pattern.
2. a kind of radio-frequency antenna standing-wave ratio automatic adjustment system as claimed in claim 1, it is characterised in that described tested rotating platform
Device includes motor, electric machine controller and shielding case；
Wherein, described motor and described electric machine controller are arranged in described shielding case, described motor and described radio-frequency antenna
Telescoping mechanism be connected, be used for driving the upper and lower motion of described telescoping mechanism, described motor also with the phase of described electric machine controller
Even, described electric machine controller also one end with described first optical-electric module is connected, and the first control instruction of described control device is logical
Crossing described second optical-electric module and be sent to described first optical-electric module, this instruction is sent to described electricity by described first optical-electric module
Machine controller, described electric machine controller controls the motion of described motor according to the first control instruction of described control module.
3. a kind of radio-frequency antenna standing-wave ratio automatic adjustment system as claimed in claim 1, it is characterised in that described radiofrequency signal
Module includes signal source, power amplifier, radio-frequency (RF) switch and standing-wave meter；
Wherein, described signal source is connected with one end of described power amplifier, the other end of described power amplifier simultaneously with institute
The first input end of the input and described standing-wave meter of stating radio-frequency (RF) switch is connected, the control end of described radio-frequency (RF) switch and described control
Device processed is connected, and the first outfan of described radio-frequency (RF) switch is connected with the signaling interface of described radio-frequency antenna, described radio-frequency (RF) switch
The second outfan be connected with the second input of described standing-wave meter, the outfan of described standing-wave meter and described control device phase
Even；
Described signal source is used for generating radiofrequency signal, the radio frequency letter that described power amplifier generates for amplifying described signal source
Number, described standing-wave meter is for calculating the standing-wave ratio of described radio-frequency antenna, and standing-wave ratio numerical value is sent to described control device, institute
State and control standing-wave ratio numerical generation the first control instruction and the second control instruction that device sends according to described standing-wave meter, and will
Described first control instruction is sent to described tested rotating platform device by described second optical-electric module and the first optical-electric module, by institute
Stating the second control instruction and be sent to described radio-frequency (RF) switch, described radio-frequency (RF) switch switches letter according to the control instruction of described control device
Number path.
4. a kind of radio-frequency antenna standing-wave ratio automatic adjustment system as claimed in claim 1, it is characterised in that described radiofrequency signal
Module is Network Analyzer.
5. a kind of radio-frequency antenna standing-wave ratio automatic adjustment system as claimed in claim 1, it is characterised in that radio-frequency antenna and sky
The junction of line adjusting device is isolated by insulant and fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620533771.1U CN205749729U (en) | 2016-06-03 | 2016-06-03 | A kind of radio-frequency antenna standing-wave ratio automatic adjustment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620533771.1U CN205749729U (en) | 2016-06-03 | 2016-06-03 | A kind of radio-frequency antenna standing-wave ratio automatic adjustment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749729U true CN205749729U (en) | 2016-11-30 |
Family
ID=57359496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620533771.1U Withdrawn - After Issue CN205749729U (en) | 2016-06-03 | 2016-06-03 | A kind of radio-frequency antenna standing-wave ratio automatic adjustment system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205749729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954621A (en) * | 2016-06-03 | 2016-09-21 | 广州市诚臻电子科技有限公司 | Radio frequency antenna standing-wave ratio automatic adjusting system |
-
2016
- 2016-06-03 CN CN201620533771.1U patent/CN205749729U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954621A (en) * | 2016-06-03 | 2016-09-21 | 广州市诚臻电子科技有限公司 | Radio frequency antenna standing-wave ratio automatic adjusting system |
| CN105954621B (en) * | 2016-06-03 | 2019-01-01 | 广州市诚臻电子科技有限公司 | A kind of radio-frequency antenna standing-wave ratio automatic adjustment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161130 Effective date of abandoning: 20190101 |