Unconditionally stable ADI-FDTD formulations of the APML for frequency-dependent media

Author

Ramadan, Omar

Author_Institution

Comput. Eng. Dept., Eastern Mediterranean Univ., Mersin, Turkey

Volume

14

Issue

11

fYear

2004

Firstpage

537

Lastpage

539

Abstract

Unconditional stable formulations of the anisotropic perfectly matched layer (APML) are presented for truncating frequency-dependent media. The formulations are based on the auxiliary differential equation and the alternating direction implicit finite-difference time-domain (ADI-FDTD) methods. Numerical examples carried out in one and two dimensions show that the proposed formulations remain unconditionally stable with inclusion of material dispersion into ADI-FDTD implementation of APML.

Keywords

anisotropic media; computational electromagnetics; differential equations; dispersion (wave); electromagnetic wave propagation; finite difference time-domain analysis; alternating direction implicit finite-difference time-domain methods; anisotropic perfectly matched layer; auxiliary differential equation; frequency-dependent media; material dispersion; unconditionally stable ADI-FDTD formulations; Anisotropic magnetoresistance; Conductivity; Differential equations; Electromagnetic scattering; Finite difference methods; Frequency; Perfectly matched layers; Permittivity; Stability; Time domain analysis; 65; ADI; APML; Alternating direction implicit; FDTD; anisotropic perfectly matched layer; auxiliary differential equation; finite-difference time-domain; frequency-dependent media;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2004.837060

Filename

1353265