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dc.contributor.authorMcKay, Johannes Erik
dc.contributor.authorRobertson, Duncan Alexander
dc.contributor.authorSpeirs, Peter James
dc.contributor.authorHunter, Robert Iain
dc.contributor.authorWylde, Richard John
dc.contributor.authorSmith, Graham Murray
dc.date.accessioned2016-03-24T09:00:04Z
dc.date.available2016-03-24T09:00:04Z
dc.date.issued2016-06
dc.identifier.citationMcKay , J E , Robertson , D A , Speirs , P J , Hunter , R I , Wylde , R J & Smith , G M 2016 , ' Compact corrugated feedhorns with high Gaussian coupling efficiency and -60 dB sidelobes ' , IEEE Transactions on Antennas and Propagation , vol. 64 , no. 6 , pp. 2518-2522 . https://doi.org/10.1109/TAP.2016.2543799en
dc.identifier.issn0018-926X
dc.identifier.otherPURE: 241556976
dc.identifier.otherPURE UUID: 2e917ca7-2bbe-4801-a051-3f0262c054ec
dc.identifier.otherScopus: 84974588150
dc.identifier.otherORCID: /0000-0002-4042-2772/work/42588073
dc.identifier.otherORCID: /0000-0001-6578-7412/work/59464776
dc.identifier.otherORCID: /0000-0002-0415-9540/work/60195470
dc.identifier.otherWOS: 000377368200050
dc.identifier.urihttp://hdl.handle.net/10023/8479
dc.description.abstractWe demonstrate that very high performance, extremely compact, scalar corrugated feedhorns can be designed and constructed by optimizing the excitation and phasing of the HE11, HE12 and HE13 modes near the throat of the horn whilst limiting excitation of higher order modes. We present the design and measurement of two families of dual-profiled horn, both with a directivity of 20 dBi that couple with very high efficiency to a fundamental Gaussian mode. The first was optimized for sidelobe performance and features sidelobes approaching -60 dB for a horn length of only 15.6λ. The second was designed to minimize horn length and achieves sidelobe levels below -35 dB for a horn which is only 4.8λ long. The horns exhibit excellent coupling to the fundamental free-space Gaussian mode, with LG00 power coupling of 99.92% and 99.75% respectively. We demonstrate excellent agreement between simulation and experiment at 94 GHz and simulate the performance over a 20% bandwidth. High performance compact scalar horns are of interest because they reduce manufacturing risk at high frequencies, and reduce size and weight at lower frequencies, which can be important in horn arrays and space applications, where horn arrays often have serious weight and size restrictions.
dc.language.isoeng
dc.relation.ispartofIEEE Transactions on Antennas and Propagationen
dc.rights© 2016, IEEE. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at ieeexplore.ieee.org / https://dx.doi.org/10.1109/TAP.2016.2543799en
dc.subjectHorn antennasen
dc.subjectGaussian beamsen
dc.subjectQuasi opticsen
dc.subjectQC Physicsen
dc.subjectInstrumentationen
dc.subjectElectrical and Electronic Engineeringen
dc.subjectNDASen
dc.subject.lccQCen
dc.titleCompact corrugated feedhorns with high Gaussian coupling efficiency and -60 dB sidelobesen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1109/TAP.2016.2543799
dc.description.statusPeer revieweden


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