全固态快沿电磁脉冲源的模拟及特性分析  

Simulation and Feature Analysis on Full-Solid Electromagnetic Pulse Source with Fast Edge

作　　者：赵敏[1] 周星[1] 王庆国[1] 杨清熙[1] 

机构地区：[1]军械工程学院电磁环境效应实验室,石家庄050003

出　　处：《微波学报》2015年第1期65-69,73,共6页Journal of Microwaves

摘　　要：为了给脉冲源的参数选择和电磁脉冲防护提供理论支撑,首先对雪崩三极管的雪崩效应以及全固态快沿电磁脉冲源的工作原理进行阐述。然后通过对雪崩三极管导通过程简化,建立了该脉冲源的等效模型,分析了该脉冲源的时域特性,通过自定义曲线拟合方法,首次得到了脉冲源输出波形的数学表达式,并验证了它的有效性,最终确定了脉冲源的具体理论模型。依据此表达式的参数,通过对脉冲电流的频域分析表明:电流的振幅主要集中在0~200MHz之间,90%以上的能量都分布在810MHz以内。In order to provide theoretical support for parameter selection of pulse source and electromagnetic pulse protection,avalanche effect of avalanche transistor and operational principle on full-solid electromagnetic pulse source is described.Then based on the simplified conduction progress of transistor,an equivalent model of pulse source is established,and its time-domain feature is analyzed,mathematical expression of pulse source output waveform is obtained using the custom fitting method,and its effectiveness is provided,finally its theoretical model is put forward.According to the parameter of the expression from the frequency-domain analysis on the pulse current it shows that current mainly range from 0 to 200MHz,more than 90% of the energy is distributed within 810MHz.

关 键 词：电磁脉冲防护 雪崩三极管 全固态电磁脉冲源 等效模型 时域和频域特性 能量分布 

分 类 号：O441[理学—电磁学] E91[理学—物理]