Phase velocity errors of the nonstandard FDTD method and comparison with other high-accuracy FDTD methods

Several high accuracy finite-difference time-domain (FDTD) methods have been developed to overcome the phase velocity errors present in the FDTD method. The nonstandard FDTD method has been developed as one of those. The phase velocity errors of the method are investigated and the characteristics ar...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2003-07, Vol.39 (4), p.2125-2128
Main Authors: Kashiwa, T., Sendo, Y., Taguchi, K., Ohtani, T., Kanai, Y.
Format: Article
Language:English
Subjects:
Anisotropic magnetoresistance
Applied classical electromagnetism
Dispersions
Electromagnetic fields
Electromagnetic wave propagation, radiowave propagation
Electromagnetism
electron and ion optics
Equations
Error analysis
Errors
Exact sciences and technology
Finite difference method
Finite difference methods
Finite difference time domain method
Frequency
Fundamental areas of phenomenology (including applications)
Magnetism
Mathematical analysis
Mathematical models
Phase velocity
Physics
Stability
Time domain analysis
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Summary:Several high accuracy finite-difference time-domain (FDTD) methods have been developed to overcome the phase velocity errors present in the FDTD method. The nonstandard FDTD method has been developed as one of those. The phase velocity errors of the method are investigated and the characteristics are compared with other high-accuracy FDTD methods. As a result, the numerical dispersion characteristics of the method are clearly shown and the extremely high-accuracy characteristic at the desired frequency is confirmed.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2003.810553