边值问题
电磁场
数学分析
边界(拓扑)
有限差分法
领域(数学)
数学
计算电磁学
领域(数学分析)
有限差分
时域有限差分法
物理
光学
量子力学
纯数学
出处
期刊:IEEE Transactions on Electromagnetic Compatibility
[Institute of Electrical and Electronics Engineers]
日期:1981-11-01
卷期号:EMC-23 (4): 377-382
被引量:2300
标识
DOI:10.1109/temc.1981.303970
摘要
When time-domain electromagnetic-field equations are solved using finite-difference techniques in unbounded space, there must be a method limiting the domain in which the field is computed. This is achieved by truncating the mesh and using absorbing boundary conditions at its artificial boundaries to simulate the unbounded surroundings. This paper presents highly absorbing boundary conditions for electromagnetic-field equations that can be used for both two-and three-dimensional configurations. Numerical results are given that clearly exhibit the accuracy and limits of applicability of highly absorbing boundary conditions. A simplified, but equally accurate, absorbing condition is derived for two- dimensional time-domain electromagnetic-field problems.
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