DocumentCode
1428994
Title
Numerical stability of finite difference time domain methods
Author
Thoma, Peter ; Weiland, Thomas
Author_Institution
Comput. Simulation Technol. GmbH, Darmstadt, Germany
Volume
34
Issue
5
fYear
1998
fDate
9/1/1998 12:00:00 AM
Firstpage
2740
Lastpage
2743
Abstract
Recently, several modifications of Yee´s well known FDTD method to locally refined grids or non-orthogonal coordinates have been presented. These methods sometimes show an unexpected unstable behavior. In this paper we will classify such instabilities in order to derive rules how to avoid them. As an example, we present a long term numerically stable subgridding scheme which will be examined by regarding a microstrip phase shifter
Keywords
finite difference time-domain analysis; microstrip components; numerical stability; phase shifters; finite difference time domain method; mesh refinement; microstrip phase shifter; nonorthogonal coordinates; numerical stability; subgridding; Computer simulation; Conducting materials; Continuous time systems; Finite difference methods; Integral equations; Maxwell equations; Numerical stability; Symmetric matrices; Time domain analysis; Voltage;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.717636
Filename
717636
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