Closed-form expression of numerical reflection coefficient at PML interfaces and optimization of PML performance

Author

Fang, Jiayuan ; Wu, Zhonghua

Author_Institution

Dept. of Electr. Eng., State Univ. of New York, Binghamton, NY, USA

Volume

6

Issue

9

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

332

Lastpage

334

Abstract

The authors present a derivation of the closed-form expression of numerical reflection at interfaces of perfectly matched layer (PML). Reflection coefficients at single interfaces and of finite-thickness absorbers are presented. The derived closed-form expression is found to match identically With the reflection coefficient obtained directly through finite-difference time-domain computation. The closed-form expression of numerical reflection coefficient can significantly facilitate the optimization of PML performance

Keywords

dispersion relations; electromagnetic wave absorption; electromagnetic wave reflection; finite difference time-domain analysis; FDTD computation; PML interfaces; PML performance optimisation; closed-form expression; finite-difference time-domain computation; finite-thickness absorbers; numerical reflection coefficient; perfectly matched layer; Closed-form solution; Conductivity; Dispersion; Finite difference methods; Frequency; Helium; Impedance; Perfectly matched layers; Reflection; Time domain analysis;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.535836

Filename

535836