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High-Efficiency Ka-Band Circularly Polarized Radial-Line Slot Array Antenna on a Bed of Nails

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High-Efficiency Ka-Band Circularly Polarized Radial-Line Slot Array Antenna on a Bed of Nails

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dc.contributor.author Herranz Herruzo, José Ignacio es_ES
dc.contributor.author Valero-Nogueira, Alejandro es_ES
dc.contributor.author Ferrando-Rocher, Miguel es_ES
dc.contributor.author Bernardo-Clemente, Bernardo es_ES
dc.date.accessioned 2023-06-19T18:01:15Z
dc.date.available 2023-06-19T18:01:15Z
dc.date.issued 2022-05 es_ES
dc.identifier.issn 0018-926X es_ES
dc.identifier.uri http://hdl.handle.net/10251/194390
dc.description.abstract [EN] Radial-line slot-array antennas (RLSAs) provide an extremely simple solution to achieve high-gain circularly polarized radiation patterns without the need for complicated feeding networks or polarizers. The dielectric-filled radial waveguide, however, drastically reduces the efficiency that is potentially achievable by RLSA antennas at millimeter waveband. In this article, a novel architecture for an all-metal RLSA is proposed by replacing the dielectric material with a regular bed of metallic nails, thus maintaining the required slow wave characteristic within the radial waveguide. The slot array is efficiently optimized by using an ad hoc method-of-moments solver, based on the definition of an equivalent problem in the waveguide region. This accurate optimization process, along with the all-metal nature of the antenna, allows to reach a measured peak total efficiency above 80% at 30 GHz. The fabricated prototype consists of two pieces: the bottom waveguide with the bed of nails and the top slotted plate, which are easily assembled by means of a few screws. Experimental results report a peak gain of 35.0 dBi for a radiation efficiency of 94%, and a wideband matching performance with a very pure axial ratio, below 0.6 dB. es_ES
dc.description.sponsorship This work was supported by MCIN/AEI/10.13039/501100011033 under Grant PID2019-107688RB-C22. es_ES
dc.language Inglés es_ES
dc.publisher Institute of Electrical and Electronics Engineers es_ES
dc.relation.ispartof IEEE Transactions on Antennas and Propagation es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Antenna arrays es_ES
dc.subject Bed of nails es_ES
dc.subject Circular polarization (CP) es_ES
dc.subject Ka-band es_ES
dc.subject Radial-line slot-array antennas (RLSA) es_ES
dc.subject SATCOM es_ES
dc.subject Slotted waveguide arrays es_ES
dc.subject.classification TEORÍA DE LA SEÑAL Y COMUNICACIONES es_ES
dc.title High-Efficiency Ka-Band Circularly Polarized Radial-Line Slot Array Antenna on a Bed of Nails es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1109/TAP.2021.3137376 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107688RB-C22/ES/ANTENAS RECONFIGURABLES PARA COMUNICACIONES DE BANDA ANCHA EN LA BANDA DE MILIMETRICAS/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Politécnica Superior de Gandia - Escola Politècnica Superior de Gandia es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Telecomunicación - Escola Tècnica Superior d'Enginyers de Telecomunicació es_ES
dc.description.bibliographicCitation Herranz Herruzo, JI.; Valero-Nogueira, A.; Ferrando-Rocher, M.; Bernardo-Clemente, B. (2022). High-Efficiency Ka-Band Circularly Polarized Radial-Line Slot Array Antenna on a Bed of Nails. IEEE Transactions on Antennas and Propagation. 70(5):3343-3353. https://doi.org/10.1109/TAP.2021.3137376 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1109/TAP.2021.3137376 es_ES
dc.description.upvformatpinicio 3343 es_ES
dc.description.upvformatpfin 3353 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 70 es_ES
dc.description.issue 5 es_ES
dc.relation.pasarela S\465881 es_ES
dc.contributor.funder Agencia Estatal de Investigación es_ES


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