Title :
Three-dimensional angle-optimized FDTD algorithms for large-scale problems
Author :
Shumin Wang ; Teixeira, F.L. ; Lee, R. ; Jin-Fa Lee
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
We describe a 3D angle-optimized FDTD (AO-FDTD) algorithm to minimize the dispersion error around pre-assigned angles. Because of the 3D Cartesian grid symmetry, the optimization occurs at each octant concurrently. This algorithm is of particular interest for some large-scale FDTD simulations where the dispersion error around a limited angular span should be minimized, while the overall isotropy is not critical.
Keywords :
computational electromagnetics; finite difference time-domain analysis; numerical stability; optimisation; 3D angle-optimized FDTD algorithm; AO-FDTD; Cartesian grid symmetry; angular span; concurrent octant optimization; dispersion error minimization; isotropy; large-scale FDTD simulations; numerical dispersion; pre-assigned angle dispersion error; Differential equations; Dispersion; Error correction; Finite difference methods; Laboratories; Large-scale systems; Maxwell equations; Tensile stress; Time domain analysis; Two dimensional displays;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220186
