Perfectly matched layer absorbing boundary condition for dispersive medium

Author

Uno, Toru ; He, Yiwei ; Adachi, Saburo

Author_Institution

Dept. of Electron. & Inf. Eng., Tokyo Univ. of Agric. & Technol., Japan

Volume

7

Issue

9

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

264

Lastpage

266

Abstract

Berenger´s perfectly matched layer (PML) absorbing boundary condition (ABC) has been found very effective for truncating the unbounded spatial domain in the finite-difference time-domain (FDTD) computation. The PML ABC was originally introduced for a free-space spatial domain and later extended to a lossy medium using the stretched coordinates. In this paper, we propose a novel PML ABC for a dispersive medium in an ordinary Cartesian coordinate. It is also shown that the PML for the lossy medium can be easily derived from our formulation

Keywords

dispersion (wave); electromagnetic wave absorption; electromagnetic wave propagation; electromagnetic wave scattering; finite difference time-domain analysis; Cartesian coordinate; FDTD computation; PML ABC; PML absorbing boundary condition; dispersive medium; finite-difference time-domain computation; lossy medium; perfectly matched layer; Agricultural engineering; Boundary conditions; Dispersion; Equations; Finite difference methods; Frequency; Helium; Perfectly matched layers; Permittivity; Time domain analysis;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.622532

Filename

622532