IEICE TRANSACTIONS on Communications
Correction of Numerical Phase Velocity Errors in Nonuniform FDTD Meshes
Summary :
This paper proposes a novel method to correct numerical phase velocity errors in FDTD meshes with nonuniform step size. It enables the complete compensation of the phase velocity errors introduced by the mesh grading for one frequency and one arbitrary direction of propagation independently of the mesh grading. This permits the usage of the Total-Field-Scattered-Field formulation in connection with electrically large nonuniform FDTD meshes and allows a general reduction of the grid dispersion errors. The capabilities of the proposed method are demonstrated with the help of two examples: (1) the fields in a dielectric sphere illuminated by a plane wave are calculated and (2) a patch antenna simulation demonstrates that the uncertainty in determining its resonance frequency can be reduced by about 50%.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E85-B No.12 pp.2904-2915
- Publication Date
- 2002/12/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Antenna and Propagation
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Andreas CHRIST, Jurg FROHLICH, Niels KUSTER, "Correction of Numerical Phase Velocity Errors in Nonuniform FDTD Meshes" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 12, pp. 2904-2915, December 2002, doi: .
Abstract: This paper proposes a novel method to correct numerical phase velocity errors in FDTD meshes with nonuniform step size. It enables the complete compensation of the phase velocity errors introduced by the mesh grading for one frequency and one arbitrary direction of propagation independently of the mesh grading. This permits the usage of the Total-Field-Scattered-Field formulation in connection with electrically large nonuniform FDTD meshes and allows a general reduction of the grid dispersion errors. The capabilities of the proposed method are demonstrated with the help of two examples: (1) the fields in a dielectric sphere illuminated by a plane wave are calculated and (2) a patch antenna simulation demonstrates that the uncertainty in determining its resonance frequency can be reduced by about 50%.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_12_2904/_p
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@ARTICLE{e85-b_12_2904,
author={Andreas CHRIST, Jurg FROHLICH, Niels KUSTER, },
journal={IEICE TRANSACTIONS on Communications},
title={Correction of Numerical Phase Velocity Errors in Nonuniform FDTD Meshes},
year={2002},
volume={E85-B},
number={12},
pages={2904-2915},
abstract={This paper proposes a novel method to correct numerical phase velocity errors in FDTD meshes with nonuniform step size. It enables the complete compensation of the phase velocity errors introduced by the mesh grading for one frequency and one arbitrary direction of propagation independently of the mesh grading. This permits the usage of the Total-Field-Scattered-Field formulation in connection with electrically large nonuniform FDTD meshes and allows a general reduction of the grid dispersion errors. The capabilities of the proposed method are demonstrated with the help of two examples: (1) the fields in a dielectric sphere illuminated by a plane wave are calculated and (2) a patch antenna simulation demonstrates that the uncertainty in determining its resonance frequency can be reduced by about 50%.},
keywords={},
doi={},
ISSN={},
month={December},}
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TY - JOUR
TI - Correction of Numerical Phase Velocity Errors in Nonuniform FDTD Meshes
T2 - IEICE TRANSACTIONS on Communications
SP - 2904
EP - 2915
AU - Andreas CHRIST
AU - Jurg FROHLICH
AU - Niels KUSTER
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2002
AB - This paper proposes a novel method to correct numerical phase velocity errors in FDTD meshes with nonuniform step size. It enables the complete compensation of the phase velocity errors introduced by the mesh grading for one frequency and one arbitrary direction of propagation independently of the mesh grading. This permits the usage of the Total-Field-Scattered-Field formulation in connection with electrically large nonuniform FDTD meshes and allows a general reduction of the grid dispersion errors. The capabilities of the proposed method are demonstrated with the help of two examples: (1) the fields in a dielectric sphere illuminated by a plane wave are calculated and (2) a patch antenna simulation demonstrates that the uncertainty in determining its resonance frequency can be reduced by about 50%.
ER -
English
