一种宽带双圆极化天线设计  

Design of a Wideband Dual Circularly Polarized Antenna

作　　者：杨绰[1] 谭志红[1] 李紫婷 王煊[1] 王晓飞[1] 王遂学 Yang Chuo;Tan Zhihong;Li Ziting;Wang Xuan;Wang Xiaofei;Wang Guixue(Beijing Institute of Space Long March Vehicle,Beijing 100076)

机构地区：[1]北京航天长征飞行器研究所,北京100076

出　　处：《测控与通信》2024年第3期31-35,共5页

摘　　要：本文对1种新型的宽带双圆极化微带天线进行了讨论,该天线由印制板和馈电网络组成。通过寄生层叠结构拓展了辐射体的工作带宽。馈电网络采用谢夫曼宽带移相器和宽带电桥实现宽带移相特性。仿真结果显示,该天线在工作带宽内电压驻波比<2.0:1,轴比<3.0dB,具有良好的圆极化辐射性能,可满足不同无线系统的使用要求。In this paper,a wideband dual circularly polarized antenna is proposed.The antenna radiator is composed of an antenna printed plate and a feeding network.The stack dielectric structure is used to improve the bandwidth of the radiator.Byfeeding the radiator with a wideband feeding network which consists of Schiffman phase shifters and wideband bridge,left and right hand circularly polarized operations are obtained.The proposed antenna is fabricated and obtain 20%relative bandwidth,and can meet the requirements of different wireless systems.

关 键 词：宽带 双圆极化 无线系统 

分 类 号：TN8[电子电信—信息与通信工程]