Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.873755
