Reflection analysis of FDTD boundary conditions. II. Berenger´s PML absorbing layers

Author

Prescott, D.T.

Author_Institution

Dept. of Electr. & Comput. Eng., Queensland Univ., Brisbane, Qld.

Volume

45

Issue

8

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

1171

Lastpage

1178

Abstract

For pt. I see ibid., vol. 45, no. 8, Aug. 1997. This paper presents an in-depth analysis of Berenger´s perfectly matched layer (PML) boundary truncation technique. The impedance and dispersion relationships for the fields within the PML media are derived to gain a better understanding of the nature of field propagation within such regions. The mechanisms which contribute toward reflection from a PML region are then described. Using this knowledge of the PML absorbing layers, a numerical method is developed, which allows the reflection from such layers to be calculated exactly

Keywords

dispersion (wave); electromagnetic fields; electromagnetic wave absorption; electromagnetic wave propagation; electromagnetic wave reflection; finite difference time-domain analysis; mesh generation; Berenger´s PML absorbing layers; FDTD boundary conditions; boundary truncation technique; dispersion relationships; field propagation; impedance relationships; reflection analysis; Australia; Boundary conditions; Computational modeling; Dispersion; Finite difference methods; Frequency; Impedance; Reflection; Scattering; Time domain analysis;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.618404

Filename

618404