Z-transform theory and FDTD stability

Kakhkhor Abdijalilov; Haim Grebel

doi:10.1109/TAP.2004.835267

Z-transform theory and FDTD stability

Kakhkhor Abdijalilov
, Haim Grebel

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

In this paper we analyze the stability and the accuracy of finite-difference time-domain (FDTD) algorithms using Z-transform technique. Conventional time-staggered approximation of the time-derivative is replaced by a rational transfer function discrete-time filter. Then a generalized formulation of the FDTD time-stepping is presented. Finally, we show that it is possible significantly reduce the time-sampling error of FDTD algorithm by properly choosing the transfer function coefficients.

Original language	English (US)
Pages (from-to)	2950-2954
Number of pages	5
Journal	IEEE Transactions on Antennas and Propagation
Volume	52
Issue number	11
DOIs	https://doi.org/10.1109/TAP.2004.835267
State	Published - Nov 2004

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Keywords

Finite-difference time-domain (FDTD) methods
Z-transforms

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10.1109/TAP.2004.835267

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AU - Grebel, Haim

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AB - In this paper we analyze the stability and the accuracy of finite-difference time-domain (FDTD) algorithms using Z-transform technique. Conventional time-staggered approximation of the time-derivative is replaced by a rational transfer function discrete-time filter. Then a generalized formulation of the FDTD time-stepping is presented. Finally, we show that it is possible significantly reduce the time-sampling error of FDTD algorithm by properly choosing the transfer function coefficients.

KW - Finite-difference time-domain (FDTD) methods

KW - Z-transforms

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M3 - Article

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JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 11

ER -

Z-transform theory and FDTD stability

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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