一种基于有限扫描六波束相控阵天线的设计  

Design of a Six-beam Phased Array Antenna Based on Limited Scanning

作　　者：林鑫 白晓坤 王洪 马羽 张天乐 LIN Xin;BAI Xiaokun;WANG Hong;MA Yu;ZHANG Tianle(Shanghai Aerospace Electronics and Communication Equipment Research Institute,Shanghai 201109,China;The First Military Representative Office of Air Force Equipment Department in Shanghai,Shanghai 201109,China)

机构地区：[1]上海航天电子通讯设备研究所,上海201109 [2]空装驻上海地区第一军代室,上海201109

出　　处：《无线电工程》2021年第5期386-391,共6页Radio Engineering

基　　金：国家国防科技工业局资助项目。

摘　　要：为了实现一部雷达同时具备搜索与跟踪功能,详细介绍了一种基于有限扫描的六波束相控阵天线的工作原理、设计方法以及相控阵接收方向图实测结果。该天线阵面通过有源子阵设计、有源子阵三角排布以及接收网络的优化设计,在俯仰维实现波束分离,具备接收六波束功能,同时具备二维扫描能力。其法向状态和波束二维副瓣均小于-30 d B,差波束二维副瓣均小于-18 d B,可应用于搜索跟踪一体化雷达。In order to achieve a radar with search and tracking functions,the operating principle,design methods and the measured results of a six-beam phased array antenna based on limited scanning are introduced in detail.Through the design of active subarray,triangular arrangement of the active subarrays and optimization design of the receiving network,the antenna realizes beams separation in the elevation dimension.The proposed antenna has the capability of receiving six beams as well as two-dimensional scanning.In its normal state,the side lobe of all sum patterns are less than-30 dB and the side lobe of all difference patterns are less than-18 dB in two dimensions.This array antenna can be applied to the integrated search and tracking radar.

关 键 词：六波束 低副瓣 和方向图 差方向图 

分 类 号：TN015[电子电信—物理电子学]