Title :
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
fDate :
3/1/2003 12:00:00 AM
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;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2003.808615
