一种低剖面Vivaldi天线的设计与仿真  

Design and Simulation of a Low Profile Vivaldi Antenna

作　　者：郑灵[1] 曹军[1] 陈嗣乔[1] 张小刚[1] Ling Zheng;Jun Cao;Siqiao Chen;Xiaogang Zhang(No.38 Research Institute of CETC, Hefei, Anhui, 230088, China)

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088

出　　处：《电子科学技术》2017年第3期61-63,共3页Electronic Science & Technology

摘　　要：Vivaldi天线是目前应用最广泛、研究最多的一种超宽带阵列天线单元,该天线的基本原理是通过传输线的结构渐变实现电磁波从射频传输线到自由空间的模式转换及相应的阻抗变换。Vivaldi天线的优点是带宽较宽、宽角扫描潜力大,缺点是剖面较高,一般为低频波长的1/4。本文设计了一种低剖面的Vivaldi天线,将高度降低到了低频波长的1/6。Vivaldi antenna is one of the most widely used UWB(Ultra Wideband)antenna arrays,the basic principle of the antenna is to realize the mode conversion and the corresponding impedance transformation of the electromagnetic wave from the RF transmission line to the free space.Vivaldi antenna has the advantages of wide bandwidth,wide angle scanning,however,the disadvantage is the high profile,generally1/4of the wavelength at the low frequency.In this paper,a low profile Vivaldi antenna is designed,which can be reduced to1/6of the wavelength at the low frequency.

关 键 词：低剖面 VIVALDI天线 

分 类 号：TN822.8[电子电信—信息与通信工程]