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dc.creatorBeaskoetxea Gartzia, Unaies_ES
dc.creatorNavarro Cía, Migueles_ES
dc.creatorBeruete Díaz, Migueles_ES
dc.identifier.issn0022-3727 (Print)
dc.identifier.issn1361-6463 (Electronic)
dc.description.abstractA thorough experimental study of the frequency and beaming angle response of a metallic leaky-wave bull’s eye antenna working at 77 GHz with a sinusoidally corrugated profile is presented. The beam scanning property of these antennas as frequency is varied is experimentally demonstrated and corroborated through theoretical and numerical results. From the experimental results the dispersion diagram of the n = −1 and n = −2 space harmonics is extracted, and the operation at different frequency regimes is identified and discussed. In order to show the contribution of each half of the antenna, numerical examples of the nearfield behavior are also displayed. Overall, experimental results are in good qualitative and quantitative agreement with theoretical and numerical calculations. Finally, an analysis of the beamwidth as a function of frequency is performed, showing that it can achieve values below 1.5° in a fractional bandwidth of 4% around the operation frequency, which is an interesting frequency-stable broadside radiation.en
dc.description.sponsorshipThis work was supported by the Spanish Government under contract TEC2014-51902-C2-2-R. MN-C is supported by University of Birmingham (Birmingham Fellowship). MB acknowledges support by the Spanish Government under contract RYC-2011-08221.en
dc.publisherIOP Publishingen
dc.relation.ispartofJournal of Physics D: Applied Physics, Volume 49, Number 26en
dc.rights© 2016 IOP Publishing Ltden
dc.subjectBull’s eyeen
dc.subjectCorrugated surfaceen
dc.subjectLeaky-wave horn antennaen
dc.subjectMillimeter wavesen
dc.subjectSinusoidal profileen
dc.titleBroadband frequency and angular response of a sinusoidal bull’s eye antennaen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentIngeniería Eléctrica y Electrónicaes_ES
dc.contributor.departmentIngeniaritza Elektrikoa eta Elektronikoaeu
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.type.versionVersión aceptada / Onetsi den bertsioaes

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