A PERFECTLY MATCHED LAYER FOR THE ABSORPTION OF ELECTROMAGNETIC-WAVES
A PERFECTLY MATCHED LAYER FOR THE ABSORPTION OF ELECTROMAGNETIC-WAVES
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DOI：
10.1006/jcph.1994.1159
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发表时间：
1994-10-01
影响因子：
4.1
通讯作者：
BERENGER, JP
中科院分区：
文献类型：
--
作者：
BERENGER, JP
发展了一种新的自由空间模拟技术，用时域有限差分法求解无界电磁场问题。被称为PML的新技术是基于使用一个吸收层，专门设计用于吸收而不反射电磁波。论文的第一部分介绍了PML技术的原理。第二部分致力于数值实验，并与以前使用的自由空间模拟技术进行数值比较。这些比较表明，PML技术的工作优于其他在所有情况下，使用它使我们能够获得更高的精度在某些问题和释放的计算要求在其他一些。(C)1994年出版社出版。
A new technique of free-space simulation has been developed for solving unbounded electromagnetic problems with the finite-difference time-domain method. Referred to as PML, the new technique is based on the use of an absorbing layer especially designed to absorb without reflection the electromagnetic waves. The first part of the paper presents the theory of the PML technique. The second part is devoted to numerical experiments and to numerical comparisons with the previously used techniques of free-space simulatin. These comparisons show that the PML technique works better than the others in all cases; using it allows us to obtain a higher accuracy in some problems and a release of computational requirements in some others. (C) 1994 Academic Press, Inc.