Title :
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
fDate :
9/1/2003 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2003.817201
