A FDTD scattered field formulation for dispersive media

Author

Abdullah, H.H. ; El-Hefnawi, F.M. ; Elsherbeni, A.Z.

Author_Institution

Microwave Eng. Dept., Electron. Res. Inst., Cairo, Egypt

Volume

1

fYear

2000

fDate

16-21 July 2000

Firstpage

248

Abstract

This paper presents a scattered field formulation for the finite difference time domain technique applied to dispersive media characterized by the Debye equation with two relaxation constants. The 3D formulation is based on the auxiliary differential equation (ADE) approach. For verification purposes, numerical results for a one dimensional problem involving reflections from a dispersive dielectric half-space are presented and compared with the exact solution.

Keywords

differential equations; dispersive media; electromagnetic fields; electromagnetic wave reflection; electromagnetic wave scattering; finite difference time-domain analysis; 3D formulation; Debye equation; EM wave reflection; FDTD scattered field formulation; auxiliary differential equation; dispersive dielectric half-space; dispersive media; exact solution; finite difference time domain; one dimensional problem; relaxation constants; Dielectric materials; Differential equations; Dispersion; Electromagnetic scattering; Finite difference methods; Frequency; Maxwell equations; Microwave theory and techniques; Permittivity; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2000. IEEE

Conference_Location

Salt Lake City, UT, USA

Print_ISBN

0-7803-6369-8

Type

conf

DOI

10.1109/APS.2000.873755

Filename

873755