CN106850085A - A kind of device of test material radio-frequency responsive performance - Google Patents
A kind of device of test material radio-frequency responsive performance Download PDFInfo
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- CN106850085A CN106850085A CN201611247435.1A CN201611247435A CN106850085A CN 106850085 A CN106850085 A CN 106850085A CN 201611247435 A CN201611247435 A CN 201611247435A CN 106850085 A CN106850085 A CN 106850085A
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- pyramid loudspeaker
- twin
- port
- loudspeaker
- general
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention provides a kind of device of test material radio-frequency responsive performance, including twin pyramid loudspeaker and general pyramid loudspeaker, and twin pyramid loudspeaker and general pyramid loudspeaker connect and compose airtight cavity；Test sample is placed in the junction of twin pyramid loudspeaker and general pyramid loudspeaker；The a port of twin pyramid loudspeaker connects microwave source, and another port is located in reflection wave paths and reversed ejected wave test device；The port of general pyramid loudspeaker is located in transmission wave paths and connects transmitted wave test device.Compared to test material radio-frequency responsive performance in waveguide channels; microwave source output microwave is exposed on material sample by a port of the twin pyramid loudspeaker of vacuum-sealed cavity; back wave reflexes to another port of twin pyramid loudspeaker; transmitted wave is transmitted to general pyramid loudspeaker; the microwave reflection of the method influences very small to microwave source, the characteristics of with protecting microwave source not influenceed by microwave reflection.
Description
Technical field
The invention belongs to HPM transmission and lift-off technology field, and in particular to a kind of dress of test material radio-frequency responsive performance
Put.
Background technology
In order to reduce the volume weight of antenna, antenna reflective face material is developed to often making now from original metal material
Carbon fiber reflecting surface material and Web materials etc., the application of these materials can not only reduce the weight of antenna but also can be with
Reduce the volume of antenna.
Relative to metal mirror material, the reflecting properties of carbon fiber and metal mesh facer material have all declined, while
All there is certain microwave transmission characteristic, therefore, the radio-frequency responsive performance for accurately testing these reflecting surface materials is final determination
The major criterion of antenna performance.
The method of usual test material has two kinds, and as shown in Figure 1, first method is that test material is penetrated in waveguide
Frequency response performance, the back wave of material sample is directly reflected back microwave source in this method, if the power of microwave source is very big,
Microwave source is possible to cause very big influence, or even damages microwave source, make system cisco unity malfunction.Second method is
Material sample uses comparison method from the test specimen of 1m × 1m during measurement, the incidence angle of radiating element is 45 °, the reality with antenna
Using close, using the aluminium sheet of formed objects same location measurement result as reference.Not only workload is big for this method, knot
Structure is complicated, and can only obtain the reflecting properties of material, it is impossible to while obtaining the isoparametric test result of transmission performance of material.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention to provide a kind of device of test material radio-frequency responsive performance, it can
To obtain material reflection and the isoparametric test result of transmission performance simultaneously.
Technical solution of the invention is to provide a kind of device of test material radio-frequency responsive performance, and its special character exists
In：Including twin pyramid loudspeaker and general pyramid loudspeaker, above-mentioned twin pyramid loudspeaker and general pyramid loudspeaker connect and compose closed
Cavity；
Test sample is placed in the junction of twin pyramid loudspeaker and general pyramid loudspeaker；
The a port of above-mentioned twin pyramid loudspeaker connects microwave source；Another port is located in reflection wave paths and reversed ejected wave
Test device；The port of general pyramid loudspeaker is located in transmission wave paths and connects transmitted wave test device.
The reflectance factor of above-mentioned twin pyramid loudspeaker microwave source injection port is less than 5%；The transmission coefficient of back wave port
Higher than 90%.
In order to whether have punch-through with optical diagnostics sample surfaces, observation window is provided with above-mentioned seal cavity
Mouthful；Preferably, above-mentioned window is located on general pyramid loudspeaker.
In order to meet the microwave test of relatively high power, it is provided with above-mentioned seal cavity and vacuumizes interface, can be true by taking out
Null device obtains the vacuum environment needed in vacuum cavity.
Preferably, above-mentioned twin pyramid loudspeaker and general pyramid loudspeaker are connected by flange.
The present invention also provides a kind of method of test material radio-frequency responsive performance, and the microwave of microwave source output is close by vacuum
The a port for sealing the twin pyramid loudspeaker in chamber is exposed on detected materials sample, and back wave reflexes to the another of twin pyramid loudspeaker
A port, transmitted wave is transmitted to general pyramid loudspeaker；The reflectance factor of the twin pyramid loudspeaker microwave source injection port is small
In 5%；The transmission coefficient of back wave port is higher than 90%.
It is an advantage of the invention that：
(1) compared to test material radio-frequency responsive performance in waveguide channels, microwave source output microwave passes through vacuum-sealed cavity
The a port of twin pyramid loudspeaker is exposed on material sample, and back wave reflexes to another port of twin pyramid loudspeaker,
Transmitted wave is transmitted to general pyramid loudspeaker, and the microwave reflection of the method influences very small to microwave source, with protecting microwave source not
The characteristics of being influenceed by microwave reflection；
(2) compared to the second method with usual testing of materials, the method can simultaneously obtain the reflection and transmission of material
Characteristic, simple structure, install convenient；
(3) be placed in material sample in vacuum-sealed cavity by the method, test material can penetrate in the vacuum simulated environment
Frequency response performance.
(4) diagnosed by the video of watch window and to reflection and the test of transmitted wave, can with diagnostic materials surface whether
Puncture.
Brief description of the drawings
Fig. 1 is that existing material reflectance waveguide bounce technique tests block diagram；
Fig. 2 is existing measured material reflectivity radiation reflective method test schematic diagram；
Fig. 3 is apparatus of the present invention structural representation.
Reference is in figure：1- units under test, 2- guide directional couplers, 3- waveguide coaxial connecters, 4- matching of waveguide
Load, 5- radiating elements, the first port of the twin pyramid loudspeakers of 6-, the second port of the twin pyramid loudspeakers of 7-, the general pyramids of 8-
The port of loudspeaker, the twin pyramid loudspeakers of 9-, 10- closed chambers, the general pyramid loudspeakers of 11-, 12- observation windows, 13- vacuumizes interface.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in figure 3, a kind of device of test material radio-frequency responsive performance of the invention, including twin pyramid loudspeaker 9 and
As the composition of pyramid loudspeaker 11 vacuum sealing cavity 10, test sample 1 be placed in twin pyramid loudspeaker 9 and general pyramid loudspeaker 11 it
Between, microwave source, the reversed ejected wave test device of second port 7, general pyramid loudspeaker are connect by the first port of twin pyramid loudspeaker 9
11 port 8 connects transmitted wave test device, and watch window 12 is provided with vacuum-sealed cavity 10 and interface 13 is vacuumized；Watch window
Whether 12 can have punch-through with video diagnosis sample 1 surface, and annular seal space 10 is vacuumized by vacuumizing interface 13.
The principle of the invention：
The bore of the twin pyramid loudspeaker of experimental provision of the present invention is 106.26 × 86.8mm, by two ports of the curved connections of π,
Port is BJ100 standard waveguide sizes, and the bore of general pyramid loudspeaker is consistent with twin pyramid loudspeaker bore, and port is also
BJ100 standard waveguide sizes.Material sample is placed between the two, material sample is met required flatness by clamping.
When relatively high power microwave test is carried out, the vacuum environment needed in vacuum cavity can be obtained by vaccum-pumping equipment.Microwave
Injected by a port of twin pyramid loudspeaker, be irradiated on material sample, reflected away by another port, general angle
Cone loudspeaker port receives transmission microwave.
Claims (7)
1. a kind of device of test material radio-frequency responsive performance, it is characterised in that：Including twin pyramid loudspeaker and general pyramid loudspeaker
, the twin pyramid loudspeaker and general pyramid loudspeaker connect and compose airtight cavity；
Test sample is placed in the junction of twin pyramid loudspeaker and general pyramid loudspeaker；
The a port of the twin pyramid loudspeaker connects microwave source, and another port is located in reflection wave paths and reversed ejected wave is tested
Device；The port of general pyramid loudspeaker is located in transmission wave paths and connects transmitted wave test device.
2. the device of test material radio-frequency responsive performance according to claim 1, it is characterised in that：The twin pyramid loudspeaker
The reflectance factor of microwave source injection port is less than 5%；The transmission coefficient of back wave port is higher than 90%.
3. the device of test material radio-frequency responsive performance according to claim 1, it is characterised in that：On the airtight cavity
It is provided with watch window.
4. the device of test material radio-frequency responsive performance according to claim 3, it is characterised in that：The observation window is located at
On general pyramid loudspeaker.
5. according to the device of any described test material radio-frequency responsive performance of claims 1 to 3, it is characterised in that：It is described close
Opened on closed chamber body and vacuumize interface.
6. according to the device of any described test material radio-frequency responsive performance of claims 1 to 3, it is characterised in that：It is described twin
Raw pyramid loudspeaker and general pyramid loudspeaker are connected by flange.
7. a kind of method of test material radio-frequency responsive performance, it is characterised in that：The microwave of microwave source output passes through vacuum sealing
The a port of the twin pyramid loudspeaker in chamber is exposed on detected materials sample, and back wave reflexes to the another of twin pyramid loudspeaker
Individual port, transmitted wave is transmitted to general pyramid loudspeaker；The reflectance factor of the twin pyramid loudspeaker microwave source injection port is less than
5%；The transmission coefficient of back wave port is higher than 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611247435.1A CN106850085B (en) | 2016-12-29 | 2016-12-29 | Device for testing radio frequency response performance of material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611247435.1A CN106850085B (en) | 2016-12-29 | 2016-12-29 | Device for testing radio frequency response performance of material |
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| Publication Number | Publication Date |
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| CN106850085A true CN106850085A (en) | 2017-06-13 |
| CN106850085B CN106850085B (en) | 2023-07-21 |
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| CN201611247435.1A Active CN106850085B (en) | 2016-12-29 | 2016-12-29 | Device for testing radio frequency response performance of material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108595785A (en) * | 2018-03-30 | 2018-09-28 | 西北核技术研究所 | A kind of HPM generation device optimization methods based on multi-objective optimization algorithm |
| CN111239165A (en) * | 2020-01-22 | 2020-06-05 | 西北核技术研究院 | Antenna surface material high power impulse response testing arrangement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108595785A (en) * | 2018-03-30 | 2018-09-28 | 西北核技术研究所 | A kind of HPM generation device optimization methods based on multi-objective optimization algorithm |
| CN108595785B (en) * | 2018-03-30 | 2021-12-24 | 西北核技术研究所 | HPM (high performance multi-processor) generating device optimization method based on multi-objective optimization algorithm |
| CN111239165A (en) * | 2020-01-22 | 2020-06-05 | 西北核技术研究院 | Antenna surface material high power impulse response testing arrangement |
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|---|---|
| CN106850085B (en) | 2023-07-21 |
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