高功率微波在大气击穿时的传输特性研究  

Propagation Analysis of High Power Microwave Pluse at Air Breakdown

作　　者：卢洵[1] 赵朝锋[1] 徐振启[1] 侯德亭[1] 

机构地区：[1]信息工程大学理学院,河南郑州450001

出　　处：《信息与电子工程》2004年第4期287-289,共3页information and electronic engineering

基　　金：国家863计划项目资助课题(863-803)

摘　　要：讨论了高功率微波大气击穿的微观机理,研究了电磁波在其中的传播特性,并进行 了数值模拟。结果表明,在低密度等离子体中,场的反射很小,电磁波几乎没有能量损耗;在高 密度等离子体,反射和传输同时存在,反射强度将逐渐增强,透射强度将逐渐减弱。In this paper, the mechanism of air breakdown of high power microwave pulse is discussed. The propagation characteristics of electromagnetic wave in air is studied through numerical simulation. The results show that the influence of plasma can not be omitted, When high power microwave pulse propagates in the plasma. When the high power microwave propagates in a rapidly created low dense plasma by gas discharge, the reflected plane wave is very weak, the influence of plasma can be omitted. When the high power microwave propagates in a rapidly created high dense plasma by gas discharge, the reflected plane wave is equal to the transmitted plane wave, the influence of plasma is significant.

关 键 词：电子技术 传输特性 数值模拟 大气击穿 高功率微波 等离子体 

分 类 号：TN015[电子电信—物理电子学]