Title :
Comparison of the dispersion properties of higher order FDTD schemes and equivalent-sized MRTD schemes
Author :
Shlager, Kurt L. ; Schneider, John B.
Author_Institution :
Adv. Telecommun. Technol., Lockheed-Martin, Sunnyvale, CA, USA
fDate :
4/1/2004 12:00:00 AM
Abstract :
The dispersion errors of higher order finite-difference time-domain (HO-FDTD) algorithms are compared to those of multiresolution time-domain (MRTD) algorithms that have equivalent spatial stencil sizes. Both scaling-function-based MRTD (S-MRTD) and wavelet-function-based MRTD (W-MRTD) schemes are considered. In particular, the MRTD schemes considered include the Coifman scaling functions and the Cohen-Daubechies-Feauveau (CDF) biorthogonal scaling and wavelet functions. In general, the HO-FDTD schemes are more accurate than their MRTD counterparts.
Keywords :
computational electromagnetics; finite difference time-domain analysis; wavelet transforms; Cohen-Daubechies-Feauveau biorthogonal scaling; Coifman scaling function; HO-FDTD algorithm; MRTD algorithm; dispersion error; higher order finite-difference time-domain; multiresolution time-domain; wavelet-function; Computer science; Dispersion; Finite difference methods; Magnetic fields; Maxwell equations; Spatial resolution; Taylor series; Time domain analysis; Two dimensional displays;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.825811
