Demonstration of TM01 Circular Waveguide Mode in Matched Feeds for Single Offset Reflectors

Michael Forum Palvig, Olav Breinbjerg, Peter Meincke, Erik Jørgensen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Matched-feed horns can be employed to reduce the inherent cross polarization of offset reflector antennas. For circular horns, the traditional method is to excite TE21 modes in the aperture. We recently proposed that TE01 or TM01 modes can be used instead, for horizontal and vertical polarization, respectively. To validate this, a matched feed using TMo1 is designed and demonstrated for the first time. The presented horn reduces cross polarization by 1 7 dB at the design frequency and by 10 dB over a 2.2 % bandwidth.
Original languageEnglish
Title of host publicationProceedings of 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
PublisherIEEE
Publication date2018
Pages723-724
ISBN (Print)9781538671023
DOIs
Publication statusPublished - 2018
Event2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting - The Westin Boston Waterfront Hotel, Boston, United States
Duration: 8 Jul 201813 Jul 2018

Conference

Conference2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
LocationThe Westin Boston Waterfront Hotel
CountryUnited States
CityBoston
Period08/07/201813/07/2018

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