一种右旋圆极化非谐振波导缝隙阵列天线设计  

Design of Right-handed Circular-polarized Non-resonant Slotted Waveguide Antenna Array

作　　者：刘苇航 韩国栋[1] LIU Weihang;HAN Guodong(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,石家庄050081

出　　处：《现代雷达》2022年第2期84-88,共5页Modern Radar

摘　　要：文中提出一种基于能量传输理论的非谐振波导缝隙阵列设计方法,设计了一款右旋圆极化非谐振波导缝隙阵列天线。圆极化由加载在波导缝隙上的切角正方形波导圆极化腔实现,文中分析了腔体的各设计参数对圆极化特性的影响,实现了圆极化腔与波导缝隙的分离设计。设计的8×8阵列天线工作在17 GHz,主频处能量辐射效率大于94%,主瓣增益25.71 dB,主瓣最低轴比1.45 dB,在3 dB波束宽度内轴比均小于3 dB。A design method of non-resonant slotted waveguide array based on energy transmission theory is proposed,and a right-handed circular-polarized non-resonant slotted waveguide antenna array is designed.Circular polarization is realized by the corner-cut square waveguide cavity,which is loaded on the waveguide.The influence of cavity parameters on the circular polarization characteristics is analyzed,and the separation design of circular polarization cavity and slotted waveguide is realized.The designed 8×8 antenna array operates in 17 GHz with more than 94%radiation efficiency,25.71 dB main-lobe gain,and 1.45 dB main-lobe minimum axial ratio.The axial ratio in main pattern is lower than 3 dB.

关 键 词：波导缝隙阵列 波导圆极化腔 非谐振天线阵 

分 类 号：TN821.8[电子电信—信息与通信工程]