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Freehand system for antenna diagnosis based on amplitude-only data

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dc.contributor.authorÁlvarez Narciandi, Guillermo
dc.contributor.authorLaviada, Jaime
dc.contributor.authorÁlvarez López, Yuri
dc.contributor.authorDucournau, Guillaume
dc.contributor.authorLuxe, Cyril
dc.contributor.authorBelem Goncalves, Cybelle
dc.contributor.authorGianesello, Frederic
dc.contributor.authorNachabe, Nour
dc.contributor.authorRío Bocio, Carlos del
dc.contributor.authorLas-Heras, Fernando
dc.contributor.departmentIngeniería Eléctrica, Electrónica y de Comunicaciónes_ES
dc.contributor.departmentIngeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzareneu
dc.date.accessioned2022-02-04T12:25:06Z
dc.date.available2022-02-04T12:25:06Z
dc.date.issued2021
dc.description.abstractThis article presents a portable system for freehand antenna diagnosis and characterization based on amplitude-only data. The amplitude-only samples are acquired by moving a handheld probe, which is tracked by a motion capture system, in front of the antenna under test (AUT) aperture. The acquired measurements are processed using the phaseless sources reconstruction method to compute an equivalent current distribution on the AUT aperture. Finally, the radiation pattern of the AUT can be obtained by evaluating the corresponding radiation integrals. Unlike previous work, the use of amplitude-only data avoids the need of a phase reference, paving the way to the diagnosis and characterization of antennas under operational conditions. This fact, together with the handheld capabilities, makes the system very convenient for measurements of already deployed and onboard antennas. Moreover, these amplitude-only acquisitions also simplify the required hardware. The system has been validated through measurements in a wide frequency range from Ka-band up to 300 GHz. Despite that one cannot expect the same degree of accuracy that can be achieved under laboratory conditions (including an anechoic environment and highly accurate positioners), the system shows excellent capabilities to detect malfunctions, such as wrong amplitude/phase distributions, as well as a fair estimation of the far field.en
dc.description.sponsorshipThis work was supported in part by the Ministerio de Ciencia, Innovacion y Universidades of Spain/Fondo Europeo de Desarrollo Regional (FEDER) under Project RTI2018-095825-B-I00, in part by the Gobierno del Principado de Asturias under Project GRUPIN-IDI2018-000191, and in part by the Ministerio de Educacion y Formacion Profesional of Spain under Grant FPU15/06431.en
dc.format.extent11 p.
dc.format.mimetypeapplication/pdfen
dc.format.mimetypeapplication/zipen
dc.identifier.citationG. Álvarez-Narciandi et al., 'Freehand System for Antenna Diagnosis Based on Amplitude-Only Data,' in IEEE Transactions on Antennas and Propagation, vol. 69, no. 8, pp. 4988-4998, Aug. 2021, doi: 10.1109/TAP.2021.3060082.en
dc.identifier.doi10.1109/TAP.2021.3060082
dc.identifier.issn1558-2221
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/42123
dc.language.isoengen
dc.publisherIEEE
dc.relation.ispartofIEEE Transactions on Antennas and Propagation, vol. 69, no. 8, pp. 4988-4998
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095825-B-I00/ES/en
dc.relation.projectIDinfo:eu-repo/grantAgreement/MECD//FPU15%2F06431/ES/en
dc.relation.publisherversionhttps://doi.org/10.1109/TAP.2021.3060082
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 Licenseen
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAmplitude-onlyen
dc.subjectAntenna diagnosisen
dc.subjectAntenna measurementsen
dc.subjectEquivalent currentsen
dc.subjectFreehanden
dc.subjectMillimeter-wave (mm-wave) antennaen
dc.subjectPhaselessen
dc.subjectPower-meteren
dc.subjectSources reconstruction methoden
dc.titleFreehand system for antenna diagnosis based on amplitude-only dataen
dc.typeinfo:eu-repo/semantics/articleen
dc.typeArtículo / Artikuluaes
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.type.versionVersión publicada / Argitaratu den bertsioaes
dspace.entity.typePublication
relation.isAuthorOfPublication6f1cee01-d191-4081-9eeb-048176644ec9
relation.isAuthorOfPublication.latestForDiscovery6f1cee01-d191-4081-9eeb-048176644ec9

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