DocumentCode
814149
Title
A simple way to model curved metal boundaries in FDTD algorithm avoiding staircase approximation
Author
Mezzanotte, Paolo ; Roselli, Luca ; Sorrentino, Roberto
Author_Institution
Inst. of Electron., Perugia Univ., Italy
Volume
5
Issue
8
fYear
1995
fDate
8/1/1995 12:00:00 AM
Firstpage
267
Lastpage
269
Abstract
The conventional FDTD algorithm in Cartesian coordinates uses staircase approximation to treat curvilinear surfaces. This approximation causes loss of accuracy often unacceptable. An extremely simple and more accurate polygonal approximation of curved surfaces is proposed in this paper. The method improves significantly the accuracy of the original FDTD algorithm, without increasing its complexity
Keywords
cavity resonators; finite difference time-domain analysis; waveguide theory; FDTD algorithm; curved metal boundaries; curvilinear surfaces; polygonal approximation; Approximation algorithms; Computational efficiency; Finite difference methods; Integral equations; Maxwell equations; Microwave theory and techniques; Surface fitting; Surface treatment; Testing; Time domain analysis;
fLanguage
English
Journal_Title
Microwave and Guided Wave Letters, IEEE
Publisher
ieee
ISSN
1051-8207
Type
jour
DOI
10.1109/75.401071
Filename
401071
Link To Document