Mode Coupling and Power Transfer in a Coaxial Sector Waveguide with a Sector Angle Taper

Arne W. Fliflet, Larry R. Barnett, J. Mark Baird

Research output: Contribution to journalArticle

Abstract

We report a theoretical study of mode coupling and power transfer in a coaxial sector taper. The power transferred from the desired TE01 mode into other propagating modes is calculated as a function of taper length and operating frequency. Power transfer via mode coupling involves at least three other modes: TE21’ TE22’ and TM21. Power transfer as a function of final sector angle is also shown. At sector angles greater than 180° the taper is highly over-moded. This type of waveguide taper is utilized to feed a wide-band input coupler for gyrotron traveling wave amplifiers.

Original languageEnglish (US)
Pages (from-to)1482-1486
Number of pages5
JournalIEEE Transactions on Microwave Theory and Techniques
Volume28
Issue number12
DOIs
StatePublished - Dec 1980
Externally publishedYes

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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