Title :
An intuitive error analysis for FDTD and comparison to MoM
Author :
Warnick, Karl F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT
Abstract :
The accuracy of the Finite-Difference Time-Domain (FDTD) algorithm is commonly treated in two ways: a local analysis of the error in a finite-difference stencil, and the numerical dispersion relation for plane-wave propagation. This article presents a simple solution error estimate that connects these two approaches. This error estimate is nearly identical to a solution error estimate for the Method of Moments, except that the FDTD error includes an additional dependence on the electrical problem size
Keywords :
computational electromagnetics; electromagnetic wave propagation; error analysis; finite difference time-domain analysis; method of moments; EM waves; FDTD; MoM; electrical problem size; error analysis; finite-difference stencil; finite-difference time-domain; method of moments; numerical dispersion relation; plane-wave propagation; solution error estimate; Algorithm design and analysis; Dispersion; Education; Error analysis; Finite difference methods; Message-oriented middleware; Moment methods; Time domain analysis; USA Councils; Writing;
Journal_Title :
Antennas and Propagation Magazine, IEEE
DOI :
10.1109/MAP.2005.1608751
