典型星载螺旋天线的大功率微放电效应仿真分析及试验研究  

The high power multipactor on typical satellite-borne helix antenna

作　　者：刘敏 王晓天[1,2] 鲁帆 赵鸿志[3] 张立功 薛欣[1,2] LIU Min;WANG Xiaotian;LU Fan;ZHAO Hongzhi;ZHANG Ligong;XUE Xin(Beijing Institute of Spacecraft System Engineering;Beijing Engineering Research Center of EMC and Antenna Test Technology;Aerospace Dongfanghong Satellite Co.Ltd.:Beijing 100094,China)

机构地区：[1]北京空间飞行器总体设计部 [2]北京市电磁兼容与天线测试工程技术研究中心 [3]航天东方红卫星有限公司,北京100094

出　　处：《航天器环境工程》2022年第1期55-60,共6页Spacecraft Environment Engineering

摘　　要：为了对星载螺旋天线的微放电效应进行分析和研究,文章以典型星载双绕背射螺旋天线为例,首先采用HFSS软件对该天线进行微放电设计及阈值仿真分析,从设计上保证天线满足卫星微波系统50 W的功率容量要求;随后用前后向功率调零检测法对天线进行功率耐受和微放电试验,验证天线的功率耐受能力;为了研究天线放电现象及放电对天线性能的影响,对天线进行加大功率的拉偏功率耐受试验,当输入功率增大到连续波200 W时,天线在30 min内发生1次微放电效应,但不会对卫星在轨应用造成明显影响。This paper studies the multipactor of the satellite-borne helix antenna, where the typical spaceborne double backshot spiral antenna is taken as an example. Firstly, the multipactor is designed and the threshold of the antenna is simulated by the HFSS software, to ensure that the requirements of the 50 W power capacity of the satellite microwave system can be met. Then, the forward and backward zero detection method is used to test the power tolerance and the multipactor of the antenna to further verify the power tolerance of the antenna. In order to study the phenomenon of the antenna multipactor and its effect on the performance of the antenna, the offset power withstand test of the antenna is carried out. It is shown that when the input power increases continuously to 200 W, the multipactor effect is observed once during 30 minutes, while it does not affect the satellite applications in orbit.

关 键 词：星载天线 微放电 功率耐受 拉偏试验 

分 类 号：V443.4[航空宇航科学与技术—飞行器设计]