Exact equivalent straight waveguide model for bent and twisted waveguides

Dzmitry Shyroki

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    Abstract

    Exact equivalent straight waveguide representation is given for a waveguide of arbitrary curvature and torsion. No assumptions regarding refractive index contrast, isotropy of materials, or particular morphology in the waveguide cross section are made. This enables rigorous full-vector modeling of in-plane curved or helically wound waveguides with use of available simulators for straight waveguides without the restrictions of the known approximate equivalent-index formulas.
    Original languageEnglish
    JournalIEEE Transactions on Microwave Theory and Techniques
    Volume56
    Issue number2
    Pages (from-to)414-419
    ISSN0018-9480
    DOIs
    Publication statusPublished - 2008

    Bibliographical note

    Copyright: 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

    Keywords

    • equivalent straight waveguide
    • coordinate transformation
    • helical coordinates

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