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

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

doi:10.1109/TMTT.1980.1130272

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 journal › Article › peer-review

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 language	English (US)
Pages (from-to)	1482-1486
Number of pages	5
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	28
Issue number	12
DOIs	https://doi.org/10.1109/TMTT.1980.1130272
State	Published - Dec 1980
Externally published	Yes

ASJC Scopus subject areas

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TMTT.1980.1130272

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Y1 - 1980/12

N2 - 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.

AB - 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.

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

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