双极化全并馈缝隙阵天线设计  

Design of a Dual-Polarized Full-Corporate-Feed Slot Array Antenna

作　　者：王中一 杨丽娜[1] 张宁宁[1] WANG Zhongyi;YANG Lina;ZHANG Ningning(China Airborne Missile Academy,Luoyang 471009,Henan)

机构地区：[1]中国空空导弹研究院

出　　处：《火控雷达技术》2019年第4期65-70,共6页Fire Control Radar Technology

摘　　要：本文以2×2子阵为基础,分析了双极化全并馈天线单元内部的电磁场传播路径,介绍了双极化工作的模式转换过程及工作原理;开展了天线单元的设计及仿真,研究了关键参数对天线反射系数的影响,并合理选择馈电结构及布局,完成4×4阵列天线的仿真设计;通过实物测试及数据对比分析,验证了此天线的性能。结果表明:此天线结构简单,易于工程化实现,具有更宽的驻波比带宽和较低的交叉极化隔离。This paper analyzes the electromagnetic field propagation inside a dual-polarized full-corporate-feed antenna unit and describes the mode switching process and operating principle of dual-polarization operation based on a 2×2 subarray.In addition,the design and simulation of the antenna unit are carried out,and the influence of key parameters on antenna reflection coefficient is researched.The feeding structure and layout of the antenna are designed rationally to complete the simulation design of the proposed 4×4 array antenna.The performance of the proposed antenna is verified through real antenna test and data analysis.Test results show that the proposed antenna is simple in structure and easy to be implemented.In addition,it has wider VSWR bandwidth and lower cross-polarization isolation.

关 键 词：双极化 全并馈 反射系数 交叉极化 缝隙阵 

分 类 号：TN957.2[电子电信—信号与信息处理]