航天器屏蔽电缆电磁辐射的分析与测试

doi:10.13190/j.jbupt.2020-232

北京邮电大学学报 ›› 2021, Vol. 44 ›› Issue (4): 56-61.doi: 10.13190/j.jbupt.2020-232

航天器屏蔽电缆电磁辐射的分析与测试

张玉廷^1,2, 徐军^1,2, 李冉¹

1. 北京空间飞行器总体设计部, 北京 100094;
2. 北京市电磁兼容与天线测试工程技术研究中心, 北京 100094

收稿日期:2020-11-08 发布日期:2021-07-13
作者简介:张玉廷(1984-),男,高级工程师,E-mail:zhang_sch@163.com.
基金资助:
装发十三五共用技术项目（41409050101）

Electromagnetic Radiation Analysis and Test for Spacecraft Shielded Cable

ZHANG Yu-ting^1,2, XU Jun^1,2, LI Ran¹

1. Institute of Spacecraft System Engineering, Beijing 100094, China;
2. Beijing Engineering Research Center of EMC and Antenna Test Technology, Beijing 100094, China

Received:2020-11-08 Published:2021-07-13

摘要/Abstract

摘要： 为了减小屏蔽电缆对航天器的影响，提出了基于传输阻抗和屏蔽层共模信号的电磁辐射分析方法.采用Kley模型分析内导体与屏蔽层之间的传输阻抗，将共模信号进行电流元分解；采用赫兹偶极子等效模型分析电缆的电场辐射.用辐射法测试屏蔽电缆的电磁辐射，以实现在常规电磁兼容性实验室开展测试的目标.仿真分析和实验结果证明，该方法可对屏蔽电缆的电磁辐射进行有效地分析和测试，可应用于航天器电缆的电磁兼容性分析和测试.

关键词: 屏蔽电缆, 电磁辐射, 电磁兼容性分析, 辐射测试法, 航天器

Abstract: To reduce the influence of the shielded cable on spacecrafts, a electromagnetic radiation analysis method based on the transfer impedance and common mode signal of shielding layer is proposed. In particular, Kley model is used to analyze the transmission impedance between the inner conductor and the shielding layer. Then, the common mode signal is decomposed by the current element, and the electric field radiation of the cable is analyzed by the Hertz dipole equivalent model. The radiation test method is proposed to test the electromagnetic radiation of the shielded cable to perform in a conventional electromagnetic compatibility laboratory. Both simulations and experiments show that the methods can effectively analyze and test the electromagnetic radiation of shielded cables. These methods can provide electromagnetic compatibility analysis and test guidance for spacecraft cable applications, which has a high application value in practice.

Key words: shielded cable, electromagnetic radiation, electromagnetic compatibility analysis, radiation test method, spacecraft

中图分类号:

TN973.3

张玉廷, 徐军, 李冉. 航天器屏蔽电缆电磁辐射的分析与测试[J]. 北京邮电大学学报, 2021, 44(4): 56-61.

ZHANG Yu-ting, XU Jun, LI Ran. Electromagnetic Radiation Analysis and Test for Spacecraft Shielded Cable[J]. Journal of Beijing University of Posts and Telecommunications, 2021, 44(4): 56-61.

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航天器屏蔽电缆电磁辐射的分析与测试

Electromagnetic Radiation Analysis and Test for Spacecraft Shielded Cable

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