CN110109070A - A kind of high-power response apparatus test device - Google Patents
A kind of high-power response apparatus test device Download PDFInfo
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- CN110109070A CN110109070A CN201910257490.6A CN201910257490A CN110109070A CN 110109070 A CN110109070 A CN 110109070A CN 201910257490 A CN201910257490 A CN 201910257490A CN 110109070 A CN110109070 A CN 110109070A
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- power
- test device
- response apparatus
- test
- fixed attenuator
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- 238000012360 testing method Methods 0.000 title claims abstract description 64
- 238000002955 isolation Methods 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000010998 test method Methods 0.000 abstract description 4
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 238000010189 synthetic method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4021—Means for monitoring or calibrating of parts of a radar system of receivers
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The present invention provides a kind of high-power response apparatus test devices, including fixed attenuator, power divider, power combiner, directional coupler.The present invention to two channels be all made of first decaying after synthetic method, no matter the high-frequency signal that high-power answering machine generates is exported from any one channel in this way, test device is tested again after capable of decaying to signal, solves the problems, such as the deficiencies of by answering machine switching channel output bring test device single channel high frequency cable frequent exchange in existing test method or because of the high cost of active microwave device bring, low reliability；Simultaneously; it realizes because two channels increase isolator to the positive transmission of signal and reverse isolation function; therefore the insulation blocking to product is further increased, to achieve the effect that test device being capable of simple, efficient, reliable test high-power high-frequency signal parameter.
Description
Technical field
The present invention relates to a kind of high-power response apparatus test devices.
Background technique
The high-frequency signal of certain high-power answering machine can be realized high-power high-frequency signal through holding by internal microwave switch
Mouth 1 or the output of 2 channel of port, it is therefore desirable to design corresponding test device to realize and export high-power high-frequency signal to answering machine
The parameters such as power, frequency and detected envelope test.
There are mainly two types of the common testing methods for realizing above-mentioned parameter, and one is a port is only designed inside test device
Input channel when test, needs to determine that test device is defeated according to answering machine high-frequency signal output channel (channel 1 or channel 2)
The connectivity port for entering channel, if high-frequency signal is exported from channel 1, then test device input channel cable should connect with 1 port of channel
It connects, and 2 port of channel connects matched load；Another kind is that a microwave switch is arranged inside test device, and the microwave with product
The corresponding simultaneously Opposite direction connection of connection type is switched, during the test by controlling high-power answering machine and test device microwave switch
Same channel turns on and off, thus realize the synchronism switching of high-power answering machine and test device microwave switch, in order to
The detection of high-frequency signal parameter.
In the first test method, only one input port of test device, but there are two output ends for high-power answering machine
Mouth, and may be selected to export from channel 1 or 2 port of channel in test process, therefore need basis to answer when test high-frequency signal parameter
Machine output channel is answered to determine the corresponding connection type of test device, i.e., every switching is primary logical during answering machine product test
Road just needs replacing the connectivity port of test device high frequency cable, and this test mode is during answering machine production debugging is tested
Seem extremely cumbersome, greatly reduces debugging, the test job efficiency of product.
In second of test method, a microwave switch is set inside test device, although during the test can be quick
Realize the synchronism switching in channel, but there are following deficiencies.First, the power of output of products is high-power signal (peak work
Rate is multikilowatt), it can thus make microwave switch want to resist high-power, can additionally increase unnecessary cost；Second, it is micro-
Wave switch is used as active microwave device, it is ensured that microwave switch works in a certain channel, needs to power to microwave switch, in product
Before test, the microwave switch built in test device is at power-up working condition, i.e., built-in microwave when powering on to test device
Switch will also synchronize power-up.And test device needs long-term power-up in actual production process, and in switching answering machine product microwave
When the service aisle of switch, the microwave switch inside test device also to synchronize participation switching, it is this it is long-term power-up and frequently cut
The working method changed will be greatly reduced the service life of microwave switch inside test device, increase the repeatability of test and maintenance, both
It is unfavorable for the reliability of test device, is also unfavorable for the production of product；Third, microwave switch interchannel only have signal path to decline
Subtract, and without channel reverse isolation, is obstructed or when load port standing wave is larger when transmitting signal in this way, to product without insulation blocking,
Probably because high-power signal reflection has an impact the microwave switch of product, or even influence the performance of product.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of high-power response apparatus test device, the high-power response
Apparatus test device can quickly test the parameters such as power, frequency and the response waveform of high-power high-frequency signal, reach test device
It can simple, efficiently, reliably test the effect of high-power high-frequency signal parameter.
The present invention is achieved by the following technical programs.
A kind of high-power response apparatus test device provided by the invention, including isolator, fixed attenuator, power distribution
Device, power combiner, directional coupler；The fixed attenuator is connected to external input terminals with two points of two-way, and two fixations decline
Subtract device output and be connected to power combiner, power combiner output connects directional coupler；Signal is divided into two-way by directional coupler,
In all the way output be connected to microwave power meter probe, another output is connected to power divider, and power divider output divides two-way point
Indescribably for the interface of frequency spectrograph and frequency meter；Two fixed attenuator primes are connected to isolator.
The isolator of described two fixed attenuator primes, reverse isolation degree are identical.
The reverse isolation degree of the isolator is 30dB.
The power attenuation amount of the fixed attenuator is 30dB.
The microwave power meter probe is connected to microwave power meter and oscillograph.
The isolator, fixed attenuator, power divider, power combiner, directional coupler are passive device.
The directional coupler is connected to microwave power meter probe with straight-through.
The directional coupler is connected to power divider to couple.
The beneficial effects of the present invention are: two channels have been all made of with synthetic method after first decaying, it is no matter big in this way
The high-frequency signal that power answering machine generates is exported from any one channel, and test device is surveyed again after capable of decaying to signal
Examination is solved in existing test method and is frequently handed over by answering machine switching channel output bring test device single channel high frequency cable
It changes or problem the deficiencies of because of the high cost of active microwave device bring, low reliability；Meanwhile because two channels increase every
It realizes from device to the positive transmission of signal and reverse isolation function, therefore further increases the insulation blocking to product, thus
Achieve the effect that test device being capable of simple, efficient, reliable test high-power high-frequency signal parameter.
Detailed description of the invention
Fig. 1 is connection schematic diagram of the invention.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
A kind of high-power response apparatus test device as shown in Figure 1, including isolator, fixed attenuator, power divider,
Power combiner, directional coupler；The fixed attenuator is connected to external input terminals, two fixed attenuators with two points of two-way
Output is connected to power combiner, and power combiner output connects directional coupler；Signal is divided into two-way by directional coupler, wherein one
Road output is connected to microwave power meter probe, and another output is connected to power divider, and power divider output divides two-way to mention respectively
For the interface of frequency spectrograph and frequency meter；Two fixed attenuator primes are connected to isolator.
The isolator of described two fixed attenuator primes, reverse isolation degree are identical.
The reverse isolation degree of the isolator is 30dB.
The power attenuation amount of the fixed attenuator is 30dB.
The microwave power meter probe is connected to microwave power meter and oscillograph.
The isolator, fixed attenuator, power divider, power combiner, directional coupler are passive device.
The directional coupler is connected to microwave power meter probe with straight-through.
The directional coupler is connected to power divider to couple.
For principle, there are two external signal output interface (channel 1 and channels for high-power answering machine by the present invention
2), isolator that channel 1 and channel 2 are directly first passed through to two-way same size, then using the fixed attenuation of same size
Device is decayed, and is later synthesized the high-frequency signal after passing through isolator and decaying by power combiner, by the synthesis
Signal afterwards connects directional coupler, and the straight-through termination microwave power meter of directional coupler simultaneously carries out detection to signal；Directional couple
Frequency spectrograph and power meter are connect respectively after the coupling termination power divider of device, to realize to high-power high-frequency signal relevant parameter
Test.
It exports maximum impulse signal power by high-power answering machine to calculate for 63dBm, the maximum power that power meter can be born
For 37dBm, it is that 30dBm may be to survey directly by answering machine high-frequency signal input test instrument that frequency spectrograph, which can bear maximum power,
Test instrument damages.Test device use two channel input interfaces, two channels pass through respectively same size and reversely every
After the isolator for being 30dB from degree, decays using the fixed attenuator of 30dB, two paths of signals is passed through into power combiner later
It is synthesized, the signal after synthesis is connect into directional coupler, high-frequency signal is divided into two-way, wherein be all the way straight-through end, it is defeated
Signal access microwave power meter probe out is connected to microwave power meter and oscillograph by power meter probe, except buffer attenuator and
Line loss, dump power the largest of about 28dBm；Another way is coupled end, and the signal of coupling is distinguished defeated by power divider
Enter to frequency meter and frequency spectrograph, remove decoupling device, power splitter and line loss, remaining maximum power about 12dBm can satisfy function
The input power requirement of rate meter, frequency meter and frequency spectrograph.Such design is solved because the switching of answering machine output channel is brought
Test device need to synchronize the complicated processes switched over, also avoid bringing test device poor reliability, and nothing with active device
The test problem of insulation blocking.
It is of the invention as a result:
1, synthetic method after two channels are first decayed is used, all using passive device and not by answering machine product
The influence of portion's microwave switch frequent switching, can be realized the test to product high-frequency signal parameter；
2, it realizes using the isolator of two same specifications to the positive transmission of signal and reverse isolation, answers high-power
The machine product of answering has carried out signal isolation protection.
Claims (8)
1. a kind of high-power response apparatus test device, including fixed attenuator, power divider, power combiner, directional couple
Device, it is characterised in that: the fixed attenuator is connected to external input terminals with two points of two-way, and two fixed attenuator outputs are connected to
Power combiner, power combiner output connect directional coupler；Signal is divided into two-way by directional coupler, wherein output connects all the way
It pops one's head in microwave power meter, another output is connected to power divider, and power divider output divides two-way to provide frequency spectrograph respectively
With the interface of frequency meter；Two fixed attenuator primes are connected to isolator.
2. high-power response apparatus test device as described in claim 1, it is characterised in that: described two fixed attenuator primes
Isolator, reverse isolation degree is identical.
3. high-power response apparatus test device as described in claim 1, it is characterised in that: the reverse isolation degree of the isolator
For 30dB.
4. high-power response apparatus test device as described in claim 1, it is characterised in that: the power of the fixed attenuator declines
It is reduced to 30dB.
5. high-power response apparatus test device as described in claim 1, it is characterised in that: the microwave power meter probe is connected to
Microwave power meter and oscillograph.
6. high-power response apparatus test device as described in claim 1, it is characterised in that: the isolator, fixed attenuator,
Power divider, power combiner, directional coupler are passive device.
7. high-power response apparatus test device as described in claim 1, it is characterised in that: the directional coupler is with straight-through end
It is connected to microwave power meter probe.
8. high-power response apparatus test device as described in claim 1, it is characterised in that: the directional coupler is with coupled end
It is connected to power divider.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910257490.6A CN110109070A (en) | 2019-04-01 | 2019-04-01 | A kind of high-power response apparatus test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257490.6A CN110109070A (en) | 2019-04-01 | 2019-04-01 | A kind of high-power response apparatus test device |
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| Publication Number | Publication Date |
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| CN110109070A true CN110109070A (en) | 2019-08-09 |
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| CN201910257490.6A Pending CN110109070A (en) | 2019-04-01 | 2019-04-01 | A kind of high-power response apparatus test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110554267A (en) * | 2019-09-24 | 2019-12-10 | 贵州航天电子科技有限公司 | Response signal test system |
| CN112415265A (en) * | 2020-09-04 | 2021-02-26 | 西安益翔航电科技有限公司 | System and method for testing radio frequency conducted sensitivity of redundancy |
| CN114325340A (en) * | 2021-12-31 | 2022-04-12 | 南京矽典微系统有限公司 | Test system and test method of radio frequency chip |
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Application publication date: 20190809 |