Z-transform theory and FDTD stability

Document Type

Article

Publication Date

11-1-2004

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. © 2004 IEEE.

Identifier

9744265775 (Scopus)

Publication Title

IEEE Transactions on Antennas and Propagation

External Full Text Location

https://doi.org/10.1109/TAP.2004.835267

ISSN

0018926X

First Page

2950

Last Page

2954

Issue

11

Volume

52

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