一种基于介质腔的双频导航天线  

A Dielectric Cavity Dual-band GNSS Antenna

作　　者：张建强 ZHANG Jian-qiang(Science and Technology on Communication Information Security Control Laboratory,Jiaxing Zhejiang 314033,China;No.36 Research Institute of CETC,Jiaxing Zhejiang 314033,China)

机构地区：[1]通信信息控制和安全技术重点实验室,浙江嘉兴314033 [2]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《通信对抗》2023年第1期53-56,共4页Communication Countermeasures

摘　　要：设计具有较小的低仰角辐射的导航接收天线是提高导航精度的重要途径。介绍了一种基于介质谐振腔的双频导航天线的设计,通过在叠层的矩形双频贴片天线底部加载介质谐振腔,阻止其表面波传播,从而降低了天线低仰角辐射。仿真结果显示天线在BD3及GPSL1两个频段能很好地抑制多径效应。In order to suppress the muitipath interference,it requires navigation receiving antenna has a smaller radiation at low elevation.This paper introduces a dielectric cavity dual-band GNSS antenna,with a dielelctric cavity under the stacked microstrip antenna.The wave at the interface of the antenna and cavity was suppressed and the radiation level are reduced.The simulation results show that the antenna has high front-to-back ratio and strong ability to inhibit the multipath signals in the bands of BD3 and GPS-L1.

关 键 词：导航天线 扼流圈 介质谐振腔 频率选择表面 多径抑制 

分 类 号：TN82[电子电信—信息与通信工程]