一种改进的対拓Vivaldi天线设计（英文）  

Design and improvement of an antipodal Vivaldi antenna

作　　者：刘宇[1] 夏鑫淋 杨涛[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都611731 [2]中国工程物理研究院微系统与太赫兹研究中心,四川成都610200

出　　处：《红外与毫米波学报》2017年第2期154-159,共6页Journal of Infrared and Millimeter Waves

基　　金：Supported by the National Natural Science Foundation of China(61271034)

摘　　要：提出了一种新颖的対拓Vivaldi天线.该天线的辐射耀斑用新的复合指数曲线修正.为改善天线的辐射特性(增益,波束偏离和交叉极化),采用了一个新的引向器,该引向器由两个混合椭圆金属贴片构成.测试结果表明该天线在1~40 GHz频率范围内增益>0 dBi,并且在15~40 GHz频段内天线的增益>12 dBi.在3~40 GHz频率范围内,E面的波束偏离小于3°,并且在15~40 GHz不超过2°.In this paper, a novel antipodal Vivaldi antenna （AVA） is presented. The radiation flares were modified by a new composite compound exponential curve. A novel director containing two hybrid elliptical metal patches was adopted to improve the radiation parameters （gain, beam tilts and cross-polarization）. The measurement re- suits show that the proposed antenna operates from 1 GHz to more than 40 GHz with peak gain 〉 0 dBi in the range of 1 -40 GHz and 〉12 dBi over the 15 -40 GHz range. The squinted beam of E-plane is less than 3° from 3 to 40 GHz and less than 2° from 20 to 40 GHz.

关 键 词：対拓Vivaldi天线 宽带天线 引向器 毫米波天线 

分 类 号：TN822.8[电子电信—信息与通信工程] TN952