BEHAVIOR OF BERENGER ABC FOR EVANESCENT WAVES

被引：46

作者：

DEMOERLOOSE, J

STUCHLY, MA

机构：

[1] Department of Electrical & Computer Engineering, University of Victoria, Victoria

来源：

IEEE MICROWAVE AND GUIDED WAVE LETTERS | 1995年 / 5卷 / 10期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1109/75.465042

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A recently published ABC by Berenger has been shown to outperform all previous ABC's by several orders of magnitude, The cornerstone of this ABC is the so called Perfectly Matched Layer (PML). This layer absorbs electromagnetic waves incident at all angles without any reflection, In this letter we evaluate basic properties of the PML-medium for incident evanescent or inhomogeneous plane waves, We show that the evanescent wave is phase-shifted upon entering the PML-medium but retains its natural damping, Moreover, a substantial numerical reflection error must be taken into account, especially in the low frequency range, These results may be important in determining the number of PML-layers needed to obtain a given accuracy.

引用

页码：344 / 346

页数：3

共 4 条

[1] Berenger J.-P., A perfectly matched layer for the absorption of elecwaves, J. Comp. Phys., 114, (1994)
[2] Katz D.S., Thiele E.T., Taflove A., Validation and extension to three dimensions of the Berenger PML absorbing boundary condition for FD-TD meshes, IEEE Microwave and Guided Wave Lett., 4, pp. 268-271, (1994)
[3] Briggons M., Lee S.-K., Cangellaris A.C., Modification of Berenger's Perfectly Matched Layer for the absorption of electromagnetic waves in layered media., Proc. 11th Annual Review of Progress in Applied Computational Electromagnetics, pp. 498-503, (1995)
[4] Wu Z., Fang J., Performance of the Perfectly Matched Layer in modeling wave propagation in microwave and digital circuit interconnects, Proc. 11th Annual Review of Progress in Applied Computational Electromagnetics, pp. 504-511, (1995)

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