Smoothly profiled quasi-optical output launcher for a W-band gyro-TWA

Liang Zhang, Wenlong He, Craig R. Donaldson, Adrian W. Cross, Graham M. Smith, Duncan A. Robertson, Robert I. Hunter

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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Abstract

A W-band quasi-optical horn with smoothly profiled circular inner surface was optimized and measured for a gyrotron traveling wave amplifier. It was designed to achieve low reflection, high fundamental Gaussian mode content and high directivity in the desired frequency range of 90 to 100 GHz. In the measurement, the reflection of the TE11 mode was lower than -37 dB and the directivity was ∼27 dB with side lobes better than -30 dB.

Original languageEnglish
Title of host publication2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies (UCMMT)
Place of PublicationPiscataway, NJ
PublisherIEEE
Number of pages2
ISBN (Print)9781538627204
DOIs
Publication statusPublished - 16 Oct 2017
Event10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017 - Liverpool, United Kingdom
Duration: 11 Sep 201713 Sep 2017

Conference

Conference10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017
CountryUnited Kingdom
CityLiverpool
Period11/09/1713/09/17

Keywords

  • Gaussian mode
  • gyrotron traveling wave amplifier
  • horn
  • smoothly profiled horn

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