一种线栅型TEM电磁脉冲辐射喇叭天线  

A Horn Antenna with Wire Grid for TEMElectromagnetic Pulse Radiation

作　　者：芦艺兵 周星 张希军 杨清熙 刘克顺 LU Yi-bing;ZHOU Xing;ZHANG Xi-jun;YANG Qing-xi;LIU Ke-shun(National Key Laboratory on Electromagnetic Environment Effects,Army Engineering University Shijiazhuang Campus,Shijiazhuang 050000,China)

机构地区：[1]陆军工程大学石家庄校区,电磁环境效应重点实验室,石家庄050000

出　　处：《现代应用物理》2021年第2期45-51,共7页Modern Applied Physics

基　　金：国家自然科学基金资助项目(51707203)。

摘　　要：针对TEM喇叭天线低频辐射性能不佳的问题,设计了一种线栅型末端卷边背载TEM电磁脉冲辐射喇叭天线。采用时域分析方法,分析了用线栅型结构替代传统板型结构TEM喇叭天线的可行性;针对TEM喇叭天线终端反射大、低频辐射效率低的问题,提出了一种末端卷边、背部加载电阻的低频补偿方法,并对线栅型天线的尺寸、极板顶角等结构进行了参数优化;最后,通过仿真和实验验证了其性能。结果表明,该天线可较好地改善辐射场波形,电场强度峰值提升了26%,半峰值脉宽提升了5.13 ns。Aiming at the problems of large terminal reflection and low frequency radiation efficiency of TEM horn antenna,an end-rolled edge terminal crimp back loading resistor horn antenna with wire grid type for TEM electromagnetic pulse radiation is designed.The feasibility of replacing the traditional plate structure TEM horn antenna with a wire grid type structure is analyzed by using the time domain analysis method.The parameters such as size and top angle of pole plate of the antenna with the wire grid type are optimized.The results show that the antenna can improve the radiation field waveform,and thus the peak electric field intensity is increased by 26%,the half peak pulse width is increased by 5.13 ns.

关 键 词：线栅型 TEM喇叭天线 尺寸结构优化 卷边 背部加载电阻 

分 类 号：TN822[电子电信—信息与通信工程]