Design of a TE10-to-TE61 mode coupler for a 372 GHz gyrotron travelling wave amplifier

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Abstract

This paper presents the design of a TE10-to-TE61 mode coupler for a 372 GHz gyrotron travelling wave amplifier. The optimized coupler was able to achieve an -1 dB transmission over the frequency band of 360-384 GHz. The transmission decreases by 1.2 dB when the copper conductivity of 0.5E7 S/m was used in the simulation. The designed coupler was scaled to W-band for manufacture and measurement. The measured transmission and phase response confirmed the mode coupling between the input TE10 mode and the desired TE61 mode.

Original languageEnglish
Title of host publication2017 47th European Microwave Conference (EuMC)
Place of PublicationPiscataway, NJ.
PublisherIEEE
Pages568-571
Number of pages4
ISBN (Electronic)9782874870477
DOIs
Publication statusPublished - 21 Dec 2017
Event47th European Microwave Conference, EuMC 2017 - Nuremburg, Germany
Duration: 10 Oct 201712 Oct 2017

Conference

Conference47th European Microwave Conference, EuMC 2017
CountryGermany
CityNuremburg
Period10/10/1712/10/17

Keywords

  • gyro-amplifiers
  • higher order mode
  • microwave coupler
  • waveguide branches

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