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Characterization of Nematic Liquid Crystal at Microwave Frequencies Using Split-Cylinder Resonator Method

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Characterization of Nematic Liquid Crystal at Microwave Frequencies Using Split-Cylinder Resonator Method

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dc.contributor.author Sánchez-Marín, Juan Rafael es_ES
dc.contributor.author Nova-Giménez, Vicente es_ES
dc.contributor.author Bachiller Martin, Maria Carmen es_ES
dc.contributor.author Villacampa, Belén es_ES
dc.contributor.author de la Rua, Alberto es_ES
dc.contributor.author Kronberger, Rainer es_ES
dc.contributor.author Penaranda-Foix, Felipe L. es_ES
dc.contributor.author Boria Esbert, Vicente Enrique es_ES
dc.date.accessioned 2020-11-14T04:31:07Z
dc.date.available 2020-11-14T04:31:07Z
dc.date.issued 2019-07 es_ES
dc.identifier.issn 0018-9480 es_ES
dc.identifier.uri http://hdl.handle.net/10251/155054
dc.description.abstract [EN] Liquid crystal (LC) is an anisotropic liquid material, which flows like a liquid, but at the same time, its molecules have an orientational order like in the solid state. Thus, LC is a promising dielectric material for designing reconfigurable devices at microwave frequencies. In order to optimize the design of reconfigurable microwave devices, accurate values of the dielectric permittivity and the loss tangent of LCs are needed. However, new LCs are not well characterized at these frequencies because of its recent use for microwave applications. Therefore, the characterization in this frequency range is required for its practical use within microwave components and devices. In this paper, a split-cylinder resonator method is used for the characterization of four different nematic LCs at two frequency points, i. e., 5 and 11 GHz. This characterization includes the extraction of their complex dielectric permittivity values at these frequencies. The employed method allows to obtain the two extreme permittivity values without applying any external electric or magnetic field to polarize the LC molecules. Two different approaches, a modal analysis method and a full-wave numerical technique, have been used for determining the LC parameters obtaining similar results in both cases. es_ES
dc.description.sponsorship This work was supported in part by the Generalitat Valenciana Research under Project PROMETEOII/2015/005, in part by the Ministerio de Educacion, Cultura y Deporte, Spain, through the Fellowship Program for Training University Professors under Grant FPU14/00150, in part by the Ministerio de Economia y Competitividad, Spain through Research and Development Projects under Grant TEC2016-75934-C4-R-1, and in part by the Gobierno de Aragon-Fondo Europeo de Desarrollo Regional (FEDER)-Fondo Social Europeo 2017-2019 under Reference E14-7R. es_ES
dc.language Inglés es_ES
dc.publisher Institute of Electrical and Electronics Engineers es_ES
dc.relation.ispartof IEEE Transactions on Microwave Theory and Techniques es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Dielectric permittivity characterization es_ES
dc.subject Liquid crystal (LC) es_ES
dc.subject Microwave devices es_ES
dc.subject Split-Cylinder resonator es_ES
dc.subject.classification TEORIA DE LA SEÑAL Y COMUNICACIONES es_ES
dc.title Characterization of Nematic Liquid Crystal at Microwave Frequencies Using Split-Cylinder Resonator Method es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1109/TMTT.2019.2916790 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//TEC2016-75934-C4-1-R/ES/DEMOSTRADORES TECNOLOGICOS DE FILTROS Y MULTIPLEXORES CON RESPUESTAS SELECTIVAS Y SINTONIZABLES EN NUEVAS GUIAS COMPACTAS PARA APLICACIONES ESPACIALES/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MECD//FPU14%2F00150/ES/FPU14%2F00150/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/Gobierno de Aragón//E14-7R/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//PROMETEOII%2F2015%2F005/ES/AVANCES EN COMPONENTES (CIRCUITOS Y ANTENAS) DE MICROONDAS Y ONDAS MILIMETRICAS PARA FUTUROS SISTEMAS DE COMUNICACIONES ESPACIALES (FUTUR-SAT)/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Telecomunicación y Aplicaciones Multimedia - Institut Universitari de Telecomunicacions i Aplicacions Multimèdia es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Comunicaciones - Departament de Comunicacions es_ES
dc.description.bibliographicCitation Sánchez-Marín, JR.; Nova-Giménez, V.; Bachiller Martin, MC.; Villacampa, B.; De La Rua, A.; Kronberger, R.; Penaranda-Foix, FL.... (2019). Characterization of Nematic Liquid Crystal at Microwave Frequencies Using Split-Cylinder Resonator Method. IEEE Transactions on Microwave Theory and Techniques. 67(7):2812-2820. https://doi.org/10.1109/TMTT.2019.2916790 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1109/TMTT.2019.2916790 es_ES
dc.description.upvformatpinicio 2812 es_ES
dc.description.upvformatpfin 2820 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 67 es_ES
dc.description.issue 7 es_ES
dc.relation.pasarela S\389320 es_ES
dc.contributor.funder Gobierno de Aragón es_ES
dc.contributor.funder European Social Fund es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder European Regional Development Fund es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
dc.contributor.funder Ministerio de Educación, Cultura y Deporte es_ES


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