A high-precision test system for satellite antenna isolation

A test system and satellite antenna technology, which is applied in the field of satellite radio frequency electromagnetic compatibility, can solve the problems that the patent does not consider and cannot reflect the change of antenna isolation, and achieve the effect of improving test efficiency, improving test accuracy, and ensuring test accuracy

Active Publication Date: 2022-03-25
BEIJING INST OF SPACECRAFT SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A high-precision test system for satellite antenna isolation
  • A high-precision test system for satellite antenna isolation
  • A high-precision test system for satellite antenna isolation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0107] like figure 1 As shown, the system is on a central computer, carrying three modules: a control module, a data processing module and a 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 to analyze and process 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 into the system.

[0109] like figure 2 As shown, the control module is mainly used for the control of the test equipment and the reading of test data, and is stored in 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]...

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Abstract

The invention discloses a high-precision test system for satellite antenna isolation. It only needs to test the characteristics of the test system link in a wide frequency band once, which improves the test efficiency. During the test process of the test link, through Data interpolation processing realizes the focus on the data on the frequency band or frequency point during the test of a wider frequency band to ensure the test accuracy; through the filtering process on the spatial distance, the suppression of environmental interference including environmental electromagnetic reflection and electromagnetic scattering signals is realized, which improves the efficiency of the test. Test accuracy; for antennas with multiple working states, the unified reflection of the relationship between angle-frequency-isolation can fully reflect the relationship between antenna isolation and frequency in different states of the antenna, and improve the reliability of antenna isolation data Integrity ensures the accuracy of radio frequency compatibility assessment of satellite systems.

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 component of satellite RF electromagnetic compatibility, involving satellite antenna layout and system-level electromagnetic compatibility. For satellites with complex electromagnetic environment, it is generally necessary to design radiation model satellites or electrical satellites for special antenna isolation tests. [0003] Regarding the antenna isolation test, such as CN1324911C "Wireless Co-frequency Repeater Antenna Isolation Test Device and Test Method", CN105306153B "Antenna Isolation Measurement Device and Measurement Method", CN106559145A "An Antenna Isolation Test System and Test Method" Methods" and CN106027177A "a method for testing the isolation of multi-elevation angle antennas" and oth...

Claims

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Application Information

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Patent Type & Authority Patents(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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