20 cm离子推力器电磁辐射试验研究

Test of electromagnetic emission radiated from 20 cm ion thruster

摘要: 离子推力器工作时会产生对外电磁辐射，因此离子电推进应用于航天器时存在电磁兼容性问题。为初步了解离子推力器工作产生的电磁辐射特性，利用经改造后的地面专用试验系统进行了20 cm离子推力器电磁辐射测试试验。文章介绍了20 cm离子推力器电磁辐射的试验方案，采用两种形式进行：推力器电场辐射发射试验，测试频段为10 kHz～5 GHz；推力器瞬态电场辐射发射试验，测试频段为100 kHz～5 GHz。试验结果表明：在离子电推进稳态工作过程和几个瞬态工况点，未发生电磁干扰现象。

Abstract: The ion thruster radiates electromagnetic emissions during its operation and brings possibly about electromagnetic compatibility issues. The electromagnetic emission tests were performed on ground facilities, in order to understand the electromagnetic emission characteristics of the 20 cm ion thruster. The program, the procedure and the measurement results of this test are presented in this paper.