Title :
A low-dispersive high-order unconditionally stable FDTD method
Author :
Fenghua Zheng ; Zhizhang Chen
Author_Institution :
Dept. of Electr. & Comput. Eng., Dalhousie Univ., Halifax, NS, Canada
Abstract :
A low-dispersive high-order unconditionally stable finite-difference-time-domain (FDTD) method based on alternating direct implicit technique (ADI) is presented in this paper for the time-domain solution of Maxwell´s equation. The stability and dispersion performance of the scheme is investigated. It is observed that the high order scheme reduces the numerical dispersion and anisotropy and therefore leads to the potential eight-times saving computation memory. It is expected that the scheme can be used on a grid much coarser than that used with the 2/sup nd/-order FDTD schemes.
Keywords :
Maxwell equations; electromagnetic field theory; finite difference time-domain analysis; numerical stability; FDTD method; Maxwell´s equation; alternating direct implicit technique; anisotropy; dispersion performance; electromagnetic problems; finite-difference-time-domain method; high order scheme; low-dispersive method; numerical dispersion; stability; unconditionally stable method; Anisotropic magnetoresistance; Eigenvalues and eigenfunctions; Finite difference methods; Matrices; Maxwell equations; Numerical models; Stability; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.874499
