现代电子技术Issue(3)：84-87,4.
指数渐变TEM喇叭辐射脉冲波形畸变分析
Analysis on waveform distortion of the radiation pulse with exponential tapered TEM horn
摘要
Abstract
When the main axial length of the exponential tapered TEM horn is constant,the peak-peak value of the radiation pulse increases with the aperture height,after the maximum is reached,the peak-peak value of the radiation pulse decreases with the aperture height and the distortion would occur to the radiation pulse waveform. In order to analyze the causes of the wave-form distortion,an approximate expression of pulse response with exponential tapered TEM horn is given based on the equiva-lent open circuited transmission line model,and the expression is modified by tracing the electromagnetic energy flow in the TEM horn. Theoretical analysis results show that the radiation pulse consists of two components,in which the relative time delay and relative change rate of the transition line have positive correlation. When the relative time delay is too large,the distortion will occur,thus the peak-peak value is lower than that of linear tapered TEM horn with the same size. The wave form of expo-nential tapered TEM horn and linear tapered TEM horns with the same size are obtained by electromagnetic simulation software, comparison validation proved the correctness of the theoretical analysis results.关键词
TEM喇叭/指数渐变线/脉冲响应/相对时延Key words
TEM horn/exponential tapered line/pulse response/relative time delay分类
信息技术与安全科学引用本文复制引用
刘雪明,廖成,冯菊..指数渐变TEM喇叭辐射脉冲波形畸变分析[J].现代电子技术,2014,(3):84-87,4.基金项目
高功率微波技术重点实验室基金(2012-LHWJJ.006) （2012-LHWJJ.006）
