Z-transform theory and FDTD stability

Kakhkhor Abdijalilov, Haim Grebel

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


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 languageEnglish (US)
Pages (from-to)2950-2954
Number of pages5
JournalIEEE Transactions on Antennas and Propagation
Issue number11
StatePublished - Nov 2004

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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


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