Anisotropic-medium PML for vector FETD with modified basis functions

Author

Wang, Shumin ; Lee, Robert ; Teixeira, Fernando L.

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA

Volume

54

Issue

1

fYear

2006

Firstpage

20

Lastpage

27

Abstract

A novel anisotropic-medium perfectly matched layer (PML) implementation is presented for boundary truncation in the three-dimensional vector finite-element time-domain (FETD) method. This approach utilizes a complex set of vector test and basis functions in the PML region, that recover the usual basis functions in the non-PML region. Numerical examples show that the proposed PML-FETD approach has small reflection errors and no observed late-time instabilities for simulations involving up to 10⁶ time steps.

Keywords

anisotropic media; electromagnetic wave absorption; finite element analysis; numerical stability; time-domain analysis; PML; anisotropic-medium; boundary truncation; modified basis function; numerical stability; perfectly matched layer; three-dimensional finite-element time-domain method; vector FETD; Anisotropic magnetoresistance; Bismuth; Finite difference methods; Finite element methods; Laboratories; Perfectly matched layers; Reflection; Stability; Testing; Time domain analysis; Basis functions; finite-element methods; numerical stability; perfectly matched layer; reflection coefficient;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2005.861523

Filename

1573735