Improved locally distorted CPFDTD algorithm with provable stability

CJ Railton, IJ Craddock, JB Schneider

Research output: Contribution to journalArticle (Academic Journal)peer-review

31 Citations (Scopus)


The contour path finite difference time domain (CPFDTD) method has been shown to give accurate results for curved metal structures. However, the numerical stability of this scheme is not guaranteed and significant skill is required to generate an appropriate grid. The authors present a modification to the two-dimensional CPFDTD method which ensures stability and which permits simple generation of the locally distorted grid. The accuracy of the scheme is demonstrated through calculation of the resonant frequencies of circular cylindrical resonators
Original languageEnglish
Pages (from-to)1585 - 1586
JournalElectronics Letters
Issue number18
Publication statusPublished - 31 Aug 1995

Bibliographical note

Publisher: Institution of Electrical Engineers (IEE)


  • algorithms
  • finite difference time domain methodsd (FDTD)


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