The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo propõe um novo método para corrigir erros numéricos de velocidade de fase em malhas FDTD com tamanho de passo não uniforme. Permite a compensação completa dos erros de velocidade de fase introduzidos pela classificação da malha para uma frequência e uma direção arbitrária de propagação, independentemente da classificação da malha. Isto permite o uso da formulação Total-Field-Scattered-Field em conexão com malhas FDTD não uniformes eletricamente grandes e permite uma redução geral dos erros de dispersão da grade. As capacidades do método proposto são demonstradas com a ajuda de dois exemplos: (1) os campos em uma esfera dielétrica iluminada por uma onda plana são calculados e (2) uma simulação de antena patch demonstra que a incerteza na determinação de sua frequência de ressonância pode ser reduzido em cerca de 50%.
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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 -