Calculation of the dispersive characteristics of open dielectric structures by the finite-difference time-domain method

CJ Railton, DL Paul, NM Pothecary

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

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An enhanced three-dimensional Finite-Difference Time-Domain (FDTD) technique is applied to the characterization of the fundamental and higher order modes of single and coupled image guide structures. The basic FDTD algorithm is modified to include multidimensional changes of permittivity and an irregular mesh is used for computational efficiency. In this paper FDTD calculations are compared with experimental and theoretical results found in the literature and good agreement is found
Original languageEnglish
Pages (from-to)1207 - 1212
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number7
Publication statusPublished - Jul 1994

Bibliographical note

Sponsorship: The authors would like to thank Prof. J. P. McGeehan for provision of facilities at the Centre for Communications Research and are grateful to GFT Ltd. and SERC U.K. for
financial support.

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  • finite difference time domain methods (FDTD)


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