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Design of a multiport frequency reconfigurable antenna suitable for IMT-advanced communications systems

dc.rights.licenseAtribución-NoComercial 4.0 Internacional
dc.contributor.advisorAraque Quijano, Javier Leonardo
dc.contributor.authorRamírez Arroyave, Germán Augusto
dc.date.accessioned2020-10-01T15:47:04Z
dc.date.available2020-10-01T15:47:04Z
dc.date.issued2018-12-07
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/78517
dc.description.abstractThis thesis tackles the design, manufacture and validation of multi-port and frequency reconfigurable antennas intended for advanced communications applications. The main accomplishments of this thesis are: Extension of the AMDSR© optimize package to efficiently deal with multiobjective and 3D structures. Broadband and nonlinear switch characterization. Study of novel planar multi-port antennas. Manufacturing of 3D antennas involving validation of a low cost material characterization technique at RF frequencies, techniques to control dielectric permittivity of 3D printed materials, and validation of alternatives for manufacturing 3D antennas. Design, validation, and manufacturing of a 3D pixellated antenna concept. Calculation of the currents on the switches of a parasitic layer antenna, design of a broadband antenna based on parasitic layer concept, development of a low complexity beam-steerable sub-array for millimeter waves, non-linear characterization of a parasitic layer based antenna element. Implementation of software defined radio based tests for antenna validation.
dc.description.abstractEsta tesis aborda el diseño, fabricación y validación de antenas multipuerto reconfigurables en frecuencia para aplicaciones en sistemas de comunicaciones avanzados. Los principales logros de esta tesis son: Extensión del paquete de optimización de AMDSR© para tratar eficientemente con problemas de optimización multiobjetivo y estructuras 3D. Caracterización de interruptores en banda ancha y de sus parámetros no lineales. Estudio de antenas planares multipuerto. Fabricación de antenas 3D incluyendo la validación de una técnica de bajo costo para la caracterización de materiales en RF, estudio de técnicas para controlar la permitividad relativa de materiales impresos en 3D, y la validación de alternativas para la construcción de antenas 3D. Diseño, validación y manufactura de un concepto de antena 3D pixelada. Cálculo de las corrientes en los interruptores de una capa parásita para antenas, diseño de una antena de banda ancha basada en capa parásita, desarrollo de un sub-arreglo con haz dirigible de baja complejidad para ondas milimétricas. Implementación de pruebas de validación de antenas en plataformas de radio definida por software.
dc.description.sponsorshipUniversidad Nacional de Colombia, Colciencias
dc.format.extent197
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.rightsDerechos reservados - Universidad Nacional de Colombia
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subject.ddc620 - Ingeniería y operaciones afines::621 - Física aplicada
dc.titleDesign of a multiport frequency reconfigurable antenna suitable for IMT-advanced communications systems
dc.typeOtro
dc.rights.spaAcceso abierto
dc.description.projectConvocatoria 727 de 2015 - Doctorados nacionales
dc.description.additionalLínea de Investigación: Computación aplicada
dc.type.driverinfo:eu-repo/semantics/other
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dc.publisher.programBogotá - Ingeniería - Doctorado en Ingeniería - Sistemas y Computación
dc.contributor.researchgroupGrupo de Investigación en Electrónica de Alta Frecuencia y Telecomunicaciones (CMUN)
dc.description.degreelevelDoctorado
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotá
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.subject.proposalComunicaciones móviles
dc.subject.proposalMobile communication
dc.subject.proposalAntennas
dc.subject.proposalAntennas
dc.subject.proposalAntennas para móviles
dc.subject.proposalMobile antennas
dc.subject.proposalAntennas reconfigurables
dc.subject.proposalReconfigurable antennas
dc.subject.proposalAlgoritmos genéticos
dc.subject.proposalGenetic algorithms
dc.subject.proposalMIMO communication
dc.subject.proposalComunicaciones MIMO
dc.subject.proposalThree-dimensional printing
dc.subject.proposalImpresión Tri-dimensional
dc.subject.proposalAntenas 3D
dc.subject.proposal3D antennas
dc.subject.proposalMicrowave technology
dc.subject.proposalTecnología de microondas
dc.type.coarhttp://purl.org/coar/resource_type/c_1843
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.contentText
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2


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