基于积分方程等效电路和BLT方程的传导耦合效应仿真分析

提出了基于积分方程等效电路和Baum-Liu-Tesche(BLT)方程的电磁脉冲传导耦合效应分析方法, 建立外部电磁干扰等效源模型, 提取等效电流和阻抗参数.对内部含复杂传输线网络和集成电路插件的电子设备建立了电磁拓扑模型, 采用BLT方程分析电磁脉冲响应.仿真分析了内部传输线连接关系、外部信号线长度和半径大小、节点负载等因素对传导耦合效应的影响.将计算结果和商用电磁仿真软件CST的结果进行了对比, 分析了所提方法的有效性, 可为电子设备电磁脉冲防护设计提供参考.

Simulation of conducted coupling effects based on IEEC and BLT equation

A method based on integral equation equivalent circuit(IEEC) and Baum-Liu-Tesche(BLT) equation is proposed to analyze conducted coupling effects of the electromagnetic pulse.The method is adopted to get the equivalent source model,corresponding current and resistance parameters of external electromagnetic interference.Furthermore,electromagnetic pulse effects of the electronic equipment with complex transmission line network and integrated circuit are computed by the electromagnetic topology theory and BLT equation.Finally,the influence of transmission line topology,the signal line length,radius and the node load resistance on conducted coupling effects is analyzed.Experimental results are consistent with simulation results of CST software,which proves the validity of the presented method.The research and simulation results can provide reference to the electromagnetic protection design of the electronic equipment.