超宽带低剖面双极化Vivaldi天线设计  

A Design of UWB Dual-Polar Vivaldi Antenna

作　　者：张更[1] 王威[1] 霍小宁[1] 杨绰[1] 王煊[1] 

机构地区：[1]北京航天长征飞行器研究所,北京100076

出　　处：《空间电子技术》2017年第1期57-60,共4页Space Electronic Technology

摘　　要：介绍了一种超宽带双极化天线,天线采用Vivaldi辐射单元交叉垂直放置,具有体积小、剖面低、质量轻的特点。在ANSYS HFSS仿真计算中,天线在3~13 GHz的频段范围内,具有良好的阻抗匹配特性和方向图特性。加入了扼流槽结构,抑制天线的表面波,从而降低了天线的后瓣。A ultra wide-band antenna with low cross polarization was introduced. The antenna is made up of two Vivaldi antenna which has the features of small volume,low profile and low weight.Each element is placed vertically.The wide-band antenna was modeled using the ANSYS HFSS simulator.lt operates at voltage standing wave ration of less than 2 with fre-quency from 3 GHz to 13 GHz. The antenna has a excellent impedance matching characteristic and a outstanding radiation characteristic.In order to reduce the rear flap of the antenna, a choke-slot is added to suppress the surface wave of theantenna.

关 键 词：超宽带 双极化 天线 

分 类 号：V474[航空宇航科学与技术—飞行器设计]