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

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Keywords

  • equivalent straight waveguide
  • coordinate transformation
  • helical coordinates

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