Dispersion-Error Optimized ADI FDTD

Author

Ahmed, Iftikhar ; Chen, Zhizhang

Author_Institution

Microwave & Wireless Res. Lab., Dalhousie Univ., Halifax, NS

fYear

2006

fDate

11-16 June 2006

Firstpage

173

Lastpage

176

Abstract

ADI-FDTD method is efficient in solving fine RF/microwave structures due to its unconditionally stable characteristics. However, it suffers from large dispersions with the increase of time steps. In this paper, an error-minimized ADI-FDTD method is proposed that is less dispersive as compared to the conventional ADI-FDTD method. It is formulated in such a way that no extra memory or simulation time is required in its computations. It is still unconditionally stable but with much less dispersion errors. Numerical examples are presented to demonstrate its efficiency and accuracy

Keywords

Maxwell equations; computational electromagnetics; dispersion (wave); finite difference time-domain analysis; Maxwell equations; dispersion-error optimized ADI-FDTD method; microwave structures; radiofrequency structures; Circuit simulation; Computational modeling; Differential equations; Error correction; Finite difference methods; Maxwell equations; Microwave theory and techniques; Optimization methods; Radio frequency; Time domain analysis; ADI-FDTD; CFL; Dispersion; FDTD; Maxwell´s equations; dispersion optimized FDTD;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2006. IEEE MTT-S International

Conference_Location

San Francisco, CA

ISSN

0149-645X

Print_ISBN

0-7803-9541-7

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2006.249440

Filename

4014850