计算物理 ›› 1992, Vol. 9 ›› Issue (S2): 655-660.

• 论文 •    下一篇

时域有限差分法计算电磁散射问题

郭利强1, 李明之1, 葛德彪1, 厉明博2   

  1. 1. 西安电子科技大学物理系, 710071;
    2. 大连理工大学电子系, 116023
  • 收稿日期:1992-01-02 出版日期:1992-12-31 发布日期:1992-12-31
  • 基金资助:
    本工作属国防科技预研基金资助项目

ANALYZING ELECTROMAGNETIC SCATTERING PROBLEMS USING FINITE-DIFFERENCE TIME-DOMAIN ALGORITHM

Guo Liqang1, Li Mingzhi1, Ge Debiao1   

  1. 1. Xian University, 710071;
    2. Dalian University of Techonlogy, 116023
  • Received:1992-01-02 Online:1992-12-31 Published:1992-12-31

摘要: 时域有限差分法是麦氏方程的差分形式的数值解法,可用于求解任意复杂目标与电磁场的相互作用问题。本文讨论了该方法的基本原理及实现过程中的一些技巧性问题。在稳态时谐场问题中引入了复场量算法。最后,给出了一些计算实例。

关键词: 时域有限差分法, 电磁散射, 吸引边界, 连接边界

Abstract: FDTD is a numerical method to seek the solution of Maxwell equations by marching in tihme domain, which can be used to analyze the interactions between electromagnetic fields and complicated objects. The fundamentals of FDTD are discussed in this paper, and some useful skills introduced. In particular, complex field components are used in time-harmonic case in order to obtain smooth output for phase. Finally, some examples are provided.

Key words: Finite-Difference , Time-Domain(FDTD) electromagnetic, scattering, absorbing boundary connective boundary