Performance of a causal anisotropic absorber for the truncation of finite element meshes in time domain electromagnetic unbounded problems

Author

Bermani, E. ; Caorsi, S. ; Raffetto, M.

Author_Institution

Dept. of Inf. & Commun. Technol., Univ. of Trento, Italy

Volume

51

Issue

9

fYear

2003

fDate

9/1/2003 12:00:00 AM

Firstpage

2523

Lastpage

2529

Abstract

The application of a new causal anisotropic absorber for the truncation of time domain finite element meshes is presented. Numerical results are illustrated in order to show the performance of the absorber. Both homogeneous and stratified absorbers are considered and their performances compared. The computational efficiency of the finite element code implementing this absorber is also proven by comparing its computational cost with that one of a conventional time domain finite element code with boundary conditions given by perfect conductors and no absorber.

Keywords

anisotropic media; causality; computational complexity; electromagnetic wave absorption; finite element analysis; time-domain analysis; absorbing boundary conditions; causal anisotropic absorber; computational cost; computational efficiency; electromagnetic unbounded problems; homogeneous absorbers; stratified absorbers; time domain electromagnetic problems; time domain finite element method; transient electromagnetic fields; Anisotropic magnetoresistance; Boundary conditions; Computational efficiency; Electromagnetic fields; Electromagnetic scattering; Finite difference methods; Finite element methods; Reflection; Time domain analysis; Transient analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2003.817201

Filename

1229934