A stable subgridding algorithm and its application to eigenvalue problems

KM Krishnaiah, CJ Railton

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

35 Citations (Scopus)
438 Downloads (Pure)


In this paper, a new and stable subgridding algorithm is proposed for three-dimensional problems which provides subgridding in both space and time. The concept of an equivalent-circuit representation and a novel leapfrog time integration scheme is used to ensure that the algorithm is stable and efficient. Practical applications of this algorithm in the characterization of arbitrarily filled dielectric resonators are reported
Translated title of the contributionA stable subgridding algorithm and its application of eigenvalue problems
Original languageEnglish
Pages (from-to)620 - 628
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number5
Publication statusPublished - May 1999

Bibliographical note

Publisher: Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Rose publication type: Journal article

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  • finite-difference time-domain (FDTD) methods


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