一种宽频带Vivaldi天线设计  

A Design of a Wideband Vivaldi Antenna

作　　者：牛旭博 关梦然 买鹏[1] NIU Xu-bo;GUAN Meng-ran;MAI Peng(The 27th Research Institute of China Electronics Technology Group Corporation,Zhengzhou 450047,China)

机构地区：[1]中国电子科技集团公司第二十七研究所,郑州450047

出　　处：《电光系统》2024年第3期35-38,共4页Electronic and Electro-optical Systems

摘　　要：文章针对常规宽频带天线的体积过大等一些缺陷,设计了一种宽频带Vivaldi天线。该天线为微带天线,在正面蚀刻指数渐变槽辐射贴片,通过开路腔扩展天线的阻抗带宽,在背面使用微带线耦合馈电。对天线的电性能进行了仿真分析,仿真结果表明,在0.7~3CHz范围内,天线电压驻波比小于2,天线增益大于等于0.5dB,天线增益随频率变大而增加,该天线可以在超过4.2个倍频程的频带内良好工作。The paper proposes a wideband Vivaldi antenna to address the drawbacks of conventional wideband antenna,such as large size.The antenna is a microstrip antenna,with an index gradient groove radiation patch etched on the front side.The impedance bandwidth of the antenna is extended through an open cavity,and microstrip line coupling feeding is used on the back side.The electrical performance of the antenna is simulated and analyzed.The simulation results show that in the range of 0.7~3 GHz,the voltage standing wave ratio of the antenna is less than 2,that the antenna gain is greater than or equal to 0.5dB and increases with an increase in frequency.The antenna can work well in a frequency band exceeding 4.2 octaves.

关 键 词：宽频带 VIVALDI天线 

分 类 号：TN82[电子电信—信息与通信工程]