Title :
Stability criterion for radial wave equation in finite-difference time-domain method
Author :
Potter, M.E. ; Okoniewski, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
4/12/2001 12:00:00 AM
Abstract :
A relaxed time-step stability criterion is derived for the radial wave equation in Schelkunoff form approximated by a finite-difference time-domain (FDTD) method. The criterion is established by comparing with the Cartesian Laplacian operator. This is the first step in developing stability analysis for a spherical wave implementation in FDTD
Keywords :
electromagnetic field theory; electromagnetic waves; finite difference time-domain analysis; numerical stability; stability criteria; wave equations; Cartesian Laplacian operator; FDTD method; Schelkunoff form; finite-difference time-domain method; radial wave equation; relaxed time-step stability criterion; spherical wave implementation; stability analysis;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010335
