Ka波段高效微带阵列天线  

Ka-band High Efficiency Microstrip Antenna Array

作　　者：司军 高星 SI Jun;GAO Xing(No. 723 Research Institute of CSIC, Yangzhou 225001, Jiangsu)

机构地区：[1]中国船舶重工集团有限公司第七二三研究所,江苏扬州225001

出　　处：《火控雷达技术》2021年第2期98-102,共5页Fire Control Radar Technology

基　　金：装备预先研究项目(41413010205)。

摘　　要：本文研究了由于互耦影响而导致的Ka波段微带阵列天线口径效率低下的问题,通过分析馈电网络及天线的电场分布,提出了一种将馈电层各个馈电终端隔离以及辐射贴片的介质沿E面断开的方法,该方法有效地抑制了微带阵列天线单元间的互耦,提高了天线口径效率。实际设计了一个4×4微带阵列天线,并通过实物测试进行对比验证,结果表明微带阵列天线口径效率至少可提高23%,设计与测试结果一致。This paper researched the low aperture efficiency of microstrip array in Ka band affected by coupling.Through analyzing the electric field distribution of feeding net and antenna,a method that separating the feeder terminal in every feeder layers and disconnecting the medium of patch along plane E was presented.This method can restrain the mutual coupling between antenna units and improve the aperture efficiency of array antenna.A 4×4 microstrip array antenna was designed,and after experiment and comparison,test results indicated that the aperture efficiency of this microstrip array antenna can be increased at least 23%.The test results are consistent with the design.

关 键 词：高效微带天线 馈电终端隔离及E面断开 互耦 

分 类 号：TN957.2[电子电信—信号与信息处理]