典型传输线网络对电磁脉冲的响应规律研究  

Study of Response of the Typical Transmission-Line Networks to Electromagnetic Pulse

作　　者：李许东[1] 王庆国[1] 周星[1] 高永生[1] 罗峰[2] 

机构地区：[1]军械工程学院强电磁场环境模拟与防护技术国防科技重点实验室 [2]77538部队

出　　处：《微波学报》2011年第5期84-88,共5页Journal of Microwaves

基　　金：国家自然科学基金(50977091)

摘　　要：针对关于电磁脉冲对各种低压传输网络及其重要电子终端设备的传导耦合规律、效应评估和损伤机理的研究较少,更缺乏有效防护措施的现状,运用电磁拓扑理论中的BLT方程进行了传输线网络对电磁脉冲响应规律的研究。首先进行了理论分析,在对传输线网络进行瞬态响应求解时,改进了以往利用繁琐的Fourier变换和反变换的计算方法,采用频域上的BLT方程求出传递函数,并结合时域上的卷积进行求解,缩短了计算时间、提高了计算结果的准确性。为了验证此方法的有效性,利用同轴线建立典型传输线网络,以方波为注入源进行了实验,实验测试结果与计算仿真结果基本一致。There is a little investigation for low voltage transmission-line network and its electronic terminated equipments on the conducting coupling,evaluation of the effection and damage mechanism.Also,it is short of the effective protective measures.BLT equation in Electromagnetic Topology Theory is used in the study of response of transmission line network for electromagnetic pulses in this paper.Firstly,this problem is analyzed theoretically.To solve the transient response of transmission line network,instead of use the complicated Fourier transform and inverse transform,a method to obtain the transfer function of network with the BLT equation in frequency domain and convolution in time domain is used.Then the calculation time is shortened,and the calculation accuracy is increased.To verify the validity of this method,a typical coaxial line network is built,the square wave is chosen as injected source in the experimentation,the experiment measurement and simulation is consistent.

关 键 词：电磁拓扑 BLT方程 传输线网络 散射矩阵 传导耦合 电磁脉冲 

分 类 号：TM15[电气工程—电工理论与新技术]