Method of testing RCS during when antenna is in emission state by means of vector network analyzer

A technology of vector network and test method, which is applied in the field of RCS test when antenna is launched, can solve problems such as antenna RCS test, port impedance characteristic, and test cannot be realized, and achieve test results with strong reference value and practicability Strong, high similarity effect

Active Publication Date: 2017-10-10
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology

However, this method only provides a test method for the antenna under test in the receiving state. For antennas with different transceiver performance, this method cannot realize the simulation of the port impedance characteristics of the ...

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  • Method of testing RCS during when antenna is in emission state by means of vector network analyzer
  • Method of testing RCS during when antenna is in emission state by means of vector network analyzer
  • Method of testing RCS during when antenna is in emission state by means of vector network analyzer

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Embodiment Construction

[0040] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0041] A kind of test method of RCS when utilizing vector network instrument to realize antenna launch, adopt RCS test technology to realize test platform, such as image 3 As shown, it includes a multi-port vector network analyzer 1, a first auxiliary antenna 2, a second auxiliary antenna 3, a test turntable 5, a calibrator 6, a first polarization turntable 7, a second polarization turntable 8, and a wave-absorbing screen 9. The third auxiliary antenna 10, the third polarization turntable 11 and the antenna bracket 12 under test;

[0042]The described test method of RCS when utilizing the vector network instrument to realize antenna emission, specifically comprises the steps:

[0043] (1) Test site interference suppression processing: For low RCS antenna testing, site interference is an important factor affecting test accuracy, so site interfe...

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Abstract

The invention discloses a method of testing RCS during when an antenna is in the emission state by means of a vector network analyzer, and belongs to the technical field of test. The method of testing RCS during when an antenna is in the emission state by means of a vector network analyzer utilizes an RCS testing technology implementation test platform, wherein the RCS testing technology implementation test platform includes a multi-port vector network analyzer, a first auxiliary antenna, a second auxiliary antenna, a test rotary table, a calibration member, a first polarized rotary table, a second polarized rotary table, a wave absorbing screen, a third auxiliary antenna, a third polarized rotary table and a support for a detected antenna. The method of testing RCS during when an antenna is in the emission state by means of a vector network analyzer takes one channel of signal source of the multi-port vector network analyzer as detected antenna excitation and takes the other channel of signal source as RCS test excitation so as to realize testing of the RCS when the detected antenna is in the emission state, thus providing a solution for antenna RCS test in the emission state, and the test method is high in practicality and is relatively higher in the facticity of the test result.

Description

technical field [0001] The invention belongs to the technical field of testing, and in particular relates to a method for testing RCS when an antenna is launched by using a vector network instrument. Background technique [0002] Antennas used in modern stealth equipment require a low RCS design, and RCS testing and verification work must be carried out during the development and production of such antennas. Different from conventional targets, since the antenna itself is the medium for the space conversion of electromagnetic signals, its RCS is mainly composed of structural scattering items and mode scattering items, in which the structural scattering items are related to the shape of the antenna, and the mode scattering items are related to the impedance matching of the antenna port. If The impedance matching of the port is poor. The radar electromagnetic wave is received by the antenna and reflected by the port. The reflected signal is superimposed with the structure scat...

Claims

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Application Information

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IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 常庆功胡大海王亚海
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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