Electromagnetic Radiation Analysis and Test for Spacecraft Shielded Cable

doi:10.13190/j.jbupt.2020-232

Journal of Beijing University of Posts and Telecommunications ›› 2021, Vol. 44 ›› Issue (4): 56-61.doi: 10.13190/j.jbupt.2020-232

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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

Abstract

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

CLC Number:

TN973.3

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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