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Stability criterion for radial wave equation in finite-difference time-domain method

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2 Author(s)
Potter, M.E. ; Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada ; Okoniewski, M.

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

Published in:

Electronics Letters  (Volume:37 ,  Issue: 8 )