带负载导线的电磁脉冲响应数值方法研究

现有的细导线算法[1,2,3]只能处理导线两端开路情形,在其基础上提出了一种修正的方法,该方法可以用来计算细导线两端带有负载时电磁脉冲对导线的响应,负载包括电容和电感.在该方法中,导线被分成理想导线、负载和地三个部分,分别用不同的偏微分方程描述,并得到可直接进行计算的差分方程.使用该方法给出了一计算实例,并对计算的结果进行了分析.

Numerical simulation of EMP coupling to loaded thin wire

In available references, the numerical methods had been proposed to deal the open end thin wire situations only. In this paper, a modified numerical algorithm is presented in order to deal with the electromagnetic pulse (EMP) coupling calculation to thin conducting wire with capacity and inductance loads. The loaded thin wire is divided into three parts and expressed in different partial differential equations to describe the conductor thin wire, load and ground, respectively. The partial differential equations may directly discretized into the finite-difference time-domain (FDTD) form. The simulation results show validity of the presented method.