摘要
电磁脉冲通过窄缝的耦合计算是电磁兼容研究中的一个重要问题,现有算法存在着一些局限或不足．为 得到一种能够反映窄缝实际耦合特点的算法,研究了Wang的窄缝算法中的不足,并基于其提出了一种修正的窄 缝电磁耦合FDTD算法,即假设窄缝所在网格上的电磁总场在面向入射场源的窄缝一侧是随离窄缝距离增 加而增强的,而在背向入射场源的窄缝一侧是随离窄缝距离的增加而减弱的．用该算法对ESD电流注入 细导线产生的电磁场与窄缝的耦合进行了计算．计算结果表明了该算法的正确性．
The coupling computation of electromagnetic pulse through thin-slot is an important problem in the electromagnetic capability study and some existing algorithms have some deficiencies. To get an algorithm reflecting the actual coupling characteristic of the thin-slot, the deficiency of the thin-slot algorithm of Wang's is studied and a modified thin-slot electromagnetic coupling FDTD algorithm, based on Wang's thin-slot algorithm, is presented in this paper. The algorithm assumes that the total electromagnetic field in the thin-slot grid increases with the distance away from the thin-slot increasing at the thin-slot side facing the incident field source and decreases with the distance away from the thin-slot increasing at the other side of the thin-slot. The thin-slot coupling of the electromagnetic field generated by a thin wire with ESD current injected is computed using the algorithm and the computed result shows the validity of the algorithm.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2005年第z1期49-52,共4页
Transactions of Beijing Institute of Technology
基金
国家自然科学基金资助项目(50237040
60471024)
关键词
FDTD算法
窄缝
电磁耦合
FDTD algorithm
thin-slot
electromagnetic coupling
