一种强电磁防护型导航天线研究与设计  

Research and Design of Antenna with Ability of Strong Electromagnetic Protection

作　　者：易波 陆奇敏 杨莉[1] YI Bo;LU Qi-min;YANG Li(Unit 78118 of PLA,Chengdu 610000,China)

机构地区：[1]中国人民解放军78118部队,四川成都610000

出　　处：《指挥控制与仿真》2022年第6期115-118,共4页Command Control & Simulation

摘　　要：针对导航接收机强电磁防护需求,设计了一款强电磁防护型导航天线。采用偏心馈电与添加径向带线方式,实现微带导航天线的圆极化,改善微带天线低仰角增益。通过加载PIN二极管的方式,实现导航信号通道开关特性。所设计的强电磁防护型导航天线在正常工作时与原导航天线的S_(11)和增益性能基本保持不变,轴比性能有所提升。当PIN二极管处于低阻态时,强电磁防护型导航天线导航信号通道关闭,防止强电磁能量从天线进入后端电路。仿真结果表明,所设计的强电磁防护型导航天线满足导航与强电磁防护需求。A strong electromagnetic protection antenna is designed for the strong electromagnetic protection requirements of navigation receiver.The microstrip navigation antenna with eccentric feeding and adding radial strip line has characteristic of circular polarization and well gain at low elevation.Switching characteristics of navigation antenna with PIN diode loaded are realized in the bandwidth of navigation signal.Comparing with the original navigation antenna,the S_(11) and gain of designed strong electromagnetic protection antenna are basically unchanged and the axial ratio is improved.When the PIN diode is in low resistance state,the channel of navigation signal is off and the strong electromagnetic energy are prohibited to enter the back circuit though antenna.The simulation results show that the strong electromagnetic protection antenna meets the requirement of navigation and strong electromagnetic defending.

关 键 词：导航天线 电磁防护 PIN二极管 天线设计 能量选择特性 

分 类 号：TN967.1[电子电信—信号与信息处理]