S. Dey et al., A TECHNIQUE FOR IMPLEMENTING THE FDTD ALGORITHM ON A NONORTHOGONAL GRID, Microwave and optical technology letters, 14(4), 1997, pp. 213-215
A novel conformal FDTD technique is presented to accurately model curv
ed metallic surfaces in 2D structures. This approach is easy to implem
ent, is numerically stable, and yields results that are very accurate
compared to the conventional staircasing method. (C) 1997 John Wiley &
Sons, Inc.