北斗/GPS导航系统抗高功率微波防护设计  

Protection design of BDS/GPS to resist high power microwave

作　　者：韩曹政 王武斌 赵伟 陈瑞涛[1] 马兴旺 李艳玲 白嘉琪 Han Caozheng;Wang Wubin;Zhao Wei;Chen Ruitao;Ma Xingwang;Li Yanling;Bai Jiaqi(The 33rd Research Institute of China Electronics Technology Group Corporation,Taiyuan 030032,China)

机构地区：[1]中国电子科技集团公司第三十三研究所,太原030032

出　　处：《强激光与粒子束》2024年第12期50-55,共6页High Power Laser and Particle Beams

基　　金：国家重点研发计划项目(2022YFE0204200);重点实验室基金项目(6142205230403)。

摘　　要：为提升北斗/GPS导航接收系统抗高功率微波的防护效能,采用场路协同仿真设计的方法,分析了北斗/GPS天线在高功率微波辐照下的响应特性,仿真得到天线端口的耦合电压量值。为实现对高功率微波的防护,设计两级防护电路,通过构建稳态电路和瞬态电路模型,对插入损耗和泄漏电压进行仿真分析,并对防护电路进行了加工。测试结果表明:防护电路在2 kW的窄带高功率微波注入下,泄漏功率小于0.5 W;在1411 V的超宽谱高功率微波注入下,泄漏电压小于12 V,可实现对高功率微波的有效抑制。同时将防护电路装配到北斗/GPS导航天线内,导航系统可正常工作。To enhance the protective effectiveness of the Beidou Navigation Satellite System(BDS)and the Global Positioning System(GPS)against high-power microwave,we adopted the method of field-circuit collaborative simulation design to analyze the response characteristics of the BDS/GPS antenna under high-power microwave irradiation.The coupling voltage was obtained by simulation.To achieve protection against high-power microwave,a two-stage protection circuit was designed.By constructing steady-state and transient circuit models,the insertion loss and leakage voltage were analyzed according to simulation,and the circuit was processed.The test results show that the leakage power of the protective circuit was less than 0.5 W under HPM-NS injection of 2 kW,the leakage voltage was less than 12 V under HPM-UWS injection of 1411 V,and this proposed circuit structure can achieve effective suppression of high-power microwave.The protection circuit was assembled into the BDS/GPS antenna,and the test results show that the navigation systems can operate normally.

关 键 词：导航系统 北斗/GPS天线 射频前端 高功率微波防护 场路协同仿真 防护电路 

分 类 号：TN965.2[电子电信—信号与信息处理]