Title :
Yet Another Look at FDTD Numerical Errors [EM Programmer´s Notebook]
Author :
Garcia, Salvador G. ; Bretones, A. Rubio ; Pantoja, M. Fernández ; López, R. Gómez
Author_Institution :
Univ. of Granada, Granada
fDate :
6/1/2007 12:00:00 AM
Abstract :
In this communication, we revisit and discuss the relationships among the truncation, discretization, phase, and amplitude dispersion errors of a finite-difference scheme. We show with a simple example how the truncation-error analysis plays a critical role in understanding the numerical inaccuracies not revealed by numerical-dispersion analyses.
Keywords :
error analysis; finite difference time-domain analysis; FDTD numerical errors; dispersion errors; truncation-error analysis; Algorithm design and analysis; Computational electromagnetics; Dispersion; Error analysis; Finite difference methods; Finite wordlength effects; Maxwell equations; Numerical analysis; Taylor series; Time domain analysis;
Journal_Title :
Antennas and Propagation Magazine, IEEE
DOI :
10.1109/MAP.2007.4293958
