A three-dimensional angle-optimized finite-difference time-domain algorithm

Author

Wang, Shumin ; Teixeira, Fernando L.

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

Volume

51

Issue

3

fYear

2003

fDate

3/1/2003 12:00:00 AM

Firstpage

811

Lastpage

817

Abstract

We present a three-dimensional finite-difference time-domain (FDTD) algorithm to minimize the numerical dispersion error at preassigned angles. Filtering schemes are used to further optimize its frequency response for broad-band simulations. A stability analysis of the resulting FDTD algorithm is also provided. Numerical results show that the dispersion error around any preassigned angle can be reduced significantly in a broad range of frequencies with small computational overhead.

Keywords

errors; finite difference time-domain analysis; minimisation; numerical stability; 3D angle-optimized FDTD algorithm; broad-band simulations; error minimization; filtering schemes; finite-difference time-domain algorithm; frequency response optimization; numerical dispersion error; preassigned angle; stability analysis; Computational modeling; Differential equations; Dispersion; Filtering; Finite difference methods; Frequency response; Maxwell equations; Stability analysis; Tensile stress; Time domain analysis;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2003.808615

Filename

1191734