Highly Tuneable X-band Bragg Resonator - Initial Results

Pratik Dilip Deshpande, Simon Jonathan Bale, Mark Hough, Jeremy Kenneth Arthur Everard

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

Abstract

This paper describes the design and measurement of a broad tuning aperiodic Bragg resonator at X-band. The resonator utilizes an aperiodic arrangement of non (λg/4) low loss alumina plates (ℰr=9.75, loss tangent of ~1 to 2×10E-5) mounted in a cylindrical metal waveguide. The initial results demonstrate a spurious free tuning range of 100MHz. The insertion loss, S21, varies from -5.6dB to -4dB while the unloaded Q varies from 40,000 to 60,000 over the tuning range. The loaded Q varied from 20,000 to 23,000. It is also possible to tune over a range of 400MHz with similar unloaded Qs up to 64,000, but on occasion the required TE011 mode passes through several lower Q modes which therefore degrades the unloaded Q of the wanted mode.
Original languageEnglish
Title of host publicationJoint Conference of the IEEE International Frequency Control Symposium & European Frequency and Time Forum (FCS), 2015
PublisherIEEE
Pages423-426
ISBN (Print) 978-1-4799-8866-2
DOIs
Publication statusPublished - 12 Apr 2015
Event 2015 Joint Conference of the IEEE International Frequency Control Symposium & European Frequency and Time Forum - Colorado, Denver, United States
Duration: 12 Apr 201516 Apr 2015

Conference

Conference 2015 Joint Conference of the IEEE International Frequency Control Symposium & European Frequency and Time Forum
Country/TerritoryUnited States
CityDenver
Period12/04/1516/04/15

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