Method of Numerical Calculation of Paths of Creeping Rays on a Convex Body

Masahiko NISHIMOTO  Hiroyoshi IKUNO 

Publication
IEICE TRANSACTIONS on Electronics  Vol.E77-C  No.11  pp.1833-1836
Publication Date: 1994/11/20
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Issue on Electromagnetic Theory)
Category: 
Keyword: 
creeping ray,  geodesic,  diffraction,  GTD, 

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Summary: 
A simple numerical method for calculating paths of creeping rays around an arbitrary convex object is presented. The adventage of this method is that the path of creeping ray is iteratively determined from initial values of incident point and incident direction of the creeping ray without solving differential equation of geodesic path. As the numerical examples, the path of creeping ray on the prolate spheroid and the resonance path of natural modes are shown.