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dc.contributor.authorHerraiz Martínez, Francisco Javieres-ES
dc.contributor.authorUgarte Muñoz, Eduardoes-ES
dc.contributor.authorGonzález Posadas, Vicentees-ES
dc.contributor.authorGarcía Muñoz, Luis Enriquees-ES
dc.contributor.authorSegovia Vargas, Danieles-ES
dc.date.accessioned2017-12-21T15:44:59Z-
dc.date.available2017-12-21T15:44:59Z-
dc.date.issued01/05/2009es_ES
dc.identifier.issn0018-9480es_ES
dc.identifier.urihttp://hdl.handle.net/11531/24688-
dc.descriptionArtículos en revistases_ES
dc.description.abstractes-ES
dc.description.abstractThis paper presents a full duplex active RF identification system with arbitrary values for any of the two frequencies in the different radio links. First, the antennas proposed in this paper are based on linearly polarized self-diplexed patch antennas working in a full-duplex way at 2.45 GHz for the reader-transponder (or tag) link and at a lower variable frequency (1.7 GHz) for the transponder-reader link reducing the propagation losses for the most critical link. Secondly, in order to reduce the multipath losses, antennas with circular polarizations for the reader and linear polarization for the transponder have been designed for the corresponding radio links. Patch antennas partially filled with metamaterial cells have offered the possibility of achieving multifrequency performance with two dipolar radiation modes, one due to the patch and the other to the metamaterial cells. This fact makes it possible to obtain high isolation levels between different ports. In addition, the inclusion of coupled or slot lines to feed the antenna has increased this isolation level. Finally, the diplexing level has been increased by including some filtering lines with metamaterial particles at the input of the feeding line. This approach avoids using an external filter or diplexer.en-GB
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoen-GBes_ES
dc.rightses_ES
dc.rights.uries_ES
dc.sourceRevista: IEEE Transactions on Microwave Theory and Techniques, Periodo: 1, Volumen: 57, Número: 5, Página inicial: 1330, Página final: 1340es_ES
dc.subject.otherInstituto de Investigación Tecnológica (IIT)es_ES
dc.titleSelf-diplexed patch antennas based on metamaterials for active RFID systemses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.description.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.keywordses-ES
dc.keywordsLeft-handed (LH) metamaterials, microstrip antennas, RF identification (RFID) antennas, self-diplexed multifrequency antennas.en-GB
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