[1] [1] GIBSON P J. The Vivaldi aerial[C]// 9th European Microwave Conference. Paris:IEEE, 1979:101-105.

[2] [2] ZHU Shuangshuang,LIU Haiwen,CHEN Zhijiao,et al. A compact gain-enhanced Vivaldi antenna array with suppressed mutual coupling for 5G mmwave application[J]. IEEE Antennas and Wireless Propagation Letters, 2018,17(5):776-779.

[3] [3] HERZI Rabiaa,BOUSLAMA Moufida,OSMAN Lotfi,et al. Frequency agile Vivaldi antenna with enhanced gain for wireless applications[C]// IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications. Pavia,Italy:IEEE, 2017:1-3.

[5] [5] HE Shanhong,SHAN Wei,FAN Chong,et al. An improved Vivaldi antenna for vehicular wireless communication systems[J]. IEEE Antennas and Wireless Propagation Letters, 2014(13):1505-1508.

[6] [6] LOGAN John T,KINDT Rick W,VOUVAKIS Marinos N. Low cross-polarization Vivaldi arrays[J]. IEEE Transactions on Antennas and Propagation, 2018,66(4):1827-1837.

[11] [11] HOOD A Z,KARACOLAK T,TOPSAKAL E. A small antipodal Vivaldi antenna for ultrawide-band applications[J]. IEEE Antennas and Wireless Propagation Letters, 2008(7):656-660.