平面波照射下贯通导线电磁干扰快速算法

提出了一种基于BLT（Baum-Liu-Tesche）方程的平面波辐照下金属腔贯通导线电磁干扰分析的快速计算方法.首先采用电磁拓扑理论将整个问题进行拓扑分解，根据场线耦合理论获得场线耦合节点的传输函数，进而采用广义BLT方程获得外界电磁波与贯通导线相互作用时金属腔内终端负载上的干扰电流.将该算法用于贯通单导线、贯通双导线和贯通传输线网络电磁干扰问题分析，计算获得的终端负载上感应电流结果与全波分析方法结果吻合较好，证明了该快速算法的有效性.该快速算法计算时间仅为全波分析法的万分之一，且所占内存相比全波分析法缩小了几十倍.

Fast algorithm of plane wave coupling to transmission lines penetrating through metallic enclosure

A Baum-Liu-Tesche(BLT)equation based approach is presented for the fast prediction of electromagnetic wave coupling with the transmission lines (TL)penetrating through a metallic enclosure. After the decomposition of the whole problem according to the electromagnetic topology theory, the transfer function at the specific node of field coupling to TL is obtained according to Agrawal model. Consequently, the induced current on the termination loads inside the enclosure can be calculated using the generalized BLT-equation.The proposed method is employed to predict the induced current on loads of a single penetrating conductor, multiple penetrating conductors and TL network, and results are in agreement with those calculated using the full wave analysis.The time consumption of the proposed method is about 1/10 000 as much as that of the full wave analysis method, and the memory is reduced by dozens of times compared with the full wave analysis method.