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Satellite antenna isolation high-precision test system

A test system and satellite antenna technology, which is applied in the field of satellite radio frequency electromagnetic compatibility, can solve problems such as the inability to reflect the change of antenna isolation and the lack of consideration of patents, and achieve the effects of improving test accuracy, improving test efficiency, and ensuring test accuracy

Active Publication Date: 2020-09-18
BEIJING INST OF SPACECRAFT SYST ENG
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  • Abstract
  • Description
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Problems solved by technology

[0006] The third is that when the antenna under test has a multi-angle working state, the test result of a single angle cannot reflect the change of the antenna isolation. It is necessary to have the change of the antenna isolation that reflects the relationship between different angles and frequencies of the antenna at the same time.
[0007] These three aspects are not considered by the above-mentioned patents, or only consider narrow-band testing without paying attention

Method used

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  • Satellite antenna isolation high-precision test system
  • Satellite antenna isolation high-precision test system
  • Satellite antenna isolation high-precision test system

Examples

Experimental program
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Effect test

Embodiment

[0107] like figure 1 As shown, the system is on a central computer, carrying three modules: control module, data processing module and test result output module. The control module is mainly used to control the test equipment and read the test result data. The data processing module is mainly used for the analysis and processing of the initial test data. The test result output module is mainly used to output the processed test data in the form of graphs and tables.

[0108] Start AITS.exe and log in to the system.

[0109] like figure 2 As shown, the control module is mainly used to control the test equipment and read the test data, and store it on the central computer.

[0110] The specific implementation steps are:

[0111] 1) After logging into the system, enter the control module interface.

[0112] 2) Connect the corresponding calibration parts to the vector network analyzer, and call the function Cal_VNA to calibrate the vector network analyzer.

[0113] 3) Esta...

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Abstract

The invention discloses a satellite antenna isolation high-precision test system. The test of the characteristics of a test system link in a wide frequency band can be completed only in one time, so that the test efficiency is improved, in the test process of the test link, data on the frequency band or a frequency point is concerned in the wide frequency band test process through data interpolation processing, and the test precision is ensured; environmental interference including environmental electromagnetic reflection and electromagnetic scattering signals is suppressed through filtering processing on the spatial distance, so that the test accuracy is improved; for an antenna with multiple working states, the relation among the angle, the frequency and the isolation is uniformly reflected, the relation between the antenna isolation and the frequency of the antenna in different states can be fully reflected, the integrity of antenna isolation data is improved, and the accuracy of satellite system radio frequency compatibility evaluation is ensured.

Description

technical field [0001] The invention belongs to the technical field of satellite radio frequency electromagnetic compatibility, and in particular relates to a high-precision test system for satellite antenna isolation. Background technique [0002] Antenna isolation is a key content of satellite radio frequency electromagnetic compatibility, involving satellite antenna layout and system-level electromagnetic compatibility. For satellites with complex electromagnetic environments, it is generally necessary to design a radiation model star or an electrical star for special testing of antenna isolation. [0003] Regarding the antenna isolation test, such as CN1324911C "Wireless Same-frequency Repeater Antenna Isolation Test Device and Test Method", CN105306153B "Measurement Antenna Isolation Device and Measurement Method", CN106559145A "Antenna Isolation Test System and Test Various methods are proposed in patents such as "Method" and CN106027177A "A Method for Testing the Iso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B17/10H04B17/20H04B17/345H04B7/185
CPCH04B17/00H04B17/102H04B17/20H04B17/345H04B7/1851
Inventor 张玉廷杨小勇王振兴刘立平张庆君周怀安舒卫平
Owner BEIJING INST OF SPACECRAFT SYST ENG
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