Leaky wave enhanced feeds for multi-beam reflector systems

A. Neto, G. Gerini, N. Llombart, M. Ettorre, P.J.I. de Maagt

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

This paper discusses the use of dielectric superlayers to shape the radiation pattern of focal plane feeds of a multi-beam reflector system. The shaping of the pattern is obtained by exciting a pair (TE/TM) of leaky waves that radiate incrementally as they propagate between the ground plane and the super-layer. Using the super-layers, it is possible to reduce the spillover from the reflectors without increasing the dimension of each aperture. This effect is achieved with an inter-element distance between the feeds of 2.4 wavelengths, which can be considered typical for satellite based multi beam telecommunication links. Thanks to the adoption of a x4 reuse scheme, based on frequency and polarization orthogonal channels, the measured edge of coverage gain has improved, with respect to a standard technology case, by 2 dB over an operational bandwidth of 2%.
Original languageEnglish
Title of host publicationProceedings of the 2011 IEEE International Symposium on Antennas and Propagation (APSURSI), 3-8 July 2011, Spokane, Washington
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages2995-2998
ISBN (Print)978-1-4244-9562-7
DOIs
Publication statusPublished - 2011
Event2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011 - Spokane, WA, United States
Duration: 3 Jul 20118 Jul 2011

Conference

Conference2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011
Country/TerritoryUnited States
CitySpokane, WA
Period3/07/118/07/11

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