Generalized analysis of stability and numerical dispersion in the discrete-convolution FDTD method

Author

Beck, William A. ; Mirotznik, Mark S.

Author_Institution

US Army Res. Lab., Adelphi, MD, USA

Volume

48

Issue

6

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

887

Lastpage

894

Abstract

A simple technique is described for determining the stability and numerical dispersion of finite-difference time-domain (FDTD) calculations that are linear, second-order in space and time, and include dispersion by the discrete convolution method. The technique is applicable to anisotropic materials. Numerical examples demonstrate the accuracy of the technique for several anisotropic and/or dispersive materials

Keywords

Anisotropic media; Convolution; Dielectric materials; Dispersion (wave); Dispersive media; Electromagnetic wave propagation; Finite difference time-domain analysis; Maxwell equations; Stability; anisotropic materials; discrete convolution method; discrete-convolution FDTD method; dispersive materials; finite-difference time-domain calculations; generalized analysis; linear second-order; numerical dispersion; stability; Anisotropic magnetoresistance; Convolution; Dielectric losses; Dispersion; Finite difference methods; Material properties; Maxwell equations; Numerical stability; Stability analysis; Time domain analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.865220

Filename

865220