An improved plane wave time domain algorithm for dissipative media

Author

Jiang, P.L. ; Yegin, K. ; Li, S.Q. ; Shanker, B. ; Michielssen, Eric

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

Volume

3

fYear

2003

Firstpage

563

Abstract

A new PWTD scheme for dissipative media is proposed. Like the previous scheme, the new scheme expresses wave fields in dissipative media as a superposition of plane waves, the evolution of each of which is tracked by solving a one-dimensional partial differential equation. The new scheme departs from the old one through the use of a translation function, which greatly diminishes the number of plane waves in the decomposition. This, in turn, greatly improves the efficiency of the scheme.

Keywords

absorbing media; computational electromagnetics; electromagnetic wave scattering; finite difference time-domain analysis; dissipative media; electromagnetic scattering; excitation function; improved plane wave time domain algorithm; one-dimensional partial differential equation; source-observer constellation; spatial Fourier transform; superposition of plane waves; transient wave fields; translation function; Computational complexity; Computational electromagnetics; Convolution; Electromagnetic transients; Fast Fourier transforms; Fourier transforms; Green function; Partial differential equations; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2003. IEEE

Print_ISBN

0-7803-7846-6

Type

conf

DOI

10.1109/APS.2003.1219910

Filename

1219910