超宽带高增益对踵Vivaldi天线的设计  

A design of high gain and broadband antipodal Vivaldi antenna

作　　者：刘刚 郭肖肖 戴柯寒 周豪 曹锐 桑磊[1] LIU Gang;GUO Xiaoxiao;DAI Kehan;ZHOU Hao;CAO Rui;SANG Lei(Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, China;No.38 Research Institute, China Electronics Technology Group Corporation, Hefei 230088, China)

机构地区：[1]合肥工业大学光电技术研究院,安徽合肥230009 [2]中国电子科技集团第三十八研究所,安徽合肥230088

出　　处：《合肥工业大学学报（自然科学版）》2020年第3期370-375,共6页Journal of Hefei University of Technology：Natural Science

基　　金：国家重点研发计划资助项目(2016YFE0100500)。

摘　　要：文章设计了加载周期波纹与三层介质透镜的对踵Vivaldi天线(antipodal Vivaldi antenna with a periodic slit edge and three-layer trapezoid-shaped dielectric lens,PSEAVA-TDL),拓展了传统对踵Vivaldi天线(conventional antipodal Vivaldi antenna,CAVA)的低频带宽,改善了CAVA的辐射性能,在4、16 GHz处天线的端射增益分别提升了2.1、7.0 dB。宽频带内该天线辐射性能稳定,方向性良好。该天线经过加工测试,实测结果和仿真数据基本一致。A modified antipodal Vivaldi antenna with a periodic slit edge and three-layer trapezoid-shaped dielectric lens(PSEAVA-TDL)is proposed.The lower-end limitation of conventional antipodal Vivaldi antenna(CAVA)is extended and the radiation performance is improved.At 4 GHz and 16 GHz,the end-fire gain of the antenna increases by 2.1 dB and 7.0 dB compared to CAVA respectively.The PSEAVA-TDL possesses stable radiation characteristics in a wide frequency range.The CAVA and PSEAVA-TDL are fabricated and measured,the measured results agree well with the simulated ones.

关 键 词：对踵Vivaldi天线 周期性波纹 介质透镜 端射增益 拓展带宽 

分 类 号：TN822.8[电子电信—信息与通信工程]