一种宽带高隔离度双极化微带天线的设计  

Design of Broadband Dual-polarized Microstrip Antenna with High Isolation

作　　者：周军[1,2] 季绣宇 郭玉春[1,2] 

机构地区：[1]通信系统信息控制技术国家级重点实验室,浙江嘉兴314033 [2]中国电子科技集团公司第三十六研究所,浙江嘉兴314033 [3]解放军61906部队,河北廊坊065001

出　　处：《通信对抗》2010年第2期57-59,共3页Communication Countermeasures

摘　　要：设计了一种宽带高隔离度的双极化微带天线,天线的两个馈电端口分别采用了H型口径耦合和容性加载H型口径耦合,在展宽带宽的同时提高了双端口隔离度,同时利用反射板使天线获得较高增益。HFSS仿真和实测结果表明天线双极化端口的阻抗带宽（VSWR〈2）达40%,增益达到8 dB以上,端口隔离度大于33 dB,该天线可被广泛应用于双极化天线阵系统中。In this paper,the design of a broadband dual-polarized aperture-coupled microstrip antenna is presented.The H-shaped and capacitance loading aperture-coupled feed structure is used to improve the two-ports isolation and bandwidth.The simulated and measured results show that the impedance bandwidth of VSWR 2 reaches 40%.The antenna gain is more than 8 dB,and the isolation is better than 33 dB in the operating frequency ranges.It can be widely used in the dual-polarized antenna array.

关 键 词：微带天线 双极化 H型口径耦合 隔离度 

分 类 号：TN822.4[电子电信—信息与通信工程]