The optimized weakly conditionally stable (WCS) FDTD method

Author

Ahmed, Iftikhar ; Li, Erping ; Chen, Zhizhang

Author_Institution

Electromagnetics Division, Institute of High Performance Computing, A*STAR, Singapore, 117528

fYear

2008

fDate

15-20 June 2008

Firstpage

161

Lastpage

164

Abstract

In this paper, we present the modified weakly conditionally stable finite difference time domain (WCS-FDTD) method by incorporating the parameters that optimize the performance of the method. In comparisons with the conventional FDTD method, the proposed method is efficient for the structures in which fine grids are required in one or two directions. In comparisons with the conventional WCS-FDTD method, the proposed method is more accurate since its numerical dispersion errors are minimized. Numerical stability and numerical dispersion of the proposed method are also presented in this paper.

Keywords

finite difference time-domain analysis; FDTD method; numerical dispersion errors minimization; numerical stability; weakly conditionally stable finite difference time domain method; Computer errors; Electromagnetics; Equations; Finite difference methods; High performance computing; Laboratories; Microwave theory and techniques; Optimization methods; Stability; Time domain analysis; Alternating direction implicit; Courant-Friedrich-Levy condition; finite difference time domain method; hybrid implicit and explicit methods; numerical dispersion;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2008 IEEE MTT-S International

Conference_Location

Atlanta, GA

ISSN

0149-645X

Print_ISBN

978-1-4244-1780-3

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2008.4633128

Filename

4633128