使用改进的时域积分方程法计算导体目标的瞬态散射

Calculations of Transient Scattering by Conductors Using a Modified Time Domain Integral Equation (TDIE) Method

本文推导了一种改进的时域积分方程 (TDIE)方法 ,用于计算任意导体目标的瞬态电磁散射问题 .采用隐式时间步进法 ,对典型导体目标包括尖劈板、立方体、导体球和球冠锥体进行了求解 ,得到了正确的瞬态响应结果 ,没有发现后期不稳定性现象 .

A modified Time-domain Integral Equation (TDIE) method is proposed and used to calculate the transient electromagnetic scattering by arbitrary conducting objects. Some typical targets, including a pie-shaped plate, a cube, a sphere and a specific conical model, are analyzed and discussed using the Implicit Marching-On-in-Time scheme. The present approach gives correct transient responses from conducting objects, and late-time instability is not observed.