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

dc.contributorAraque Quijano, Javier Leonardo
dc.contributorGrupo de Investigación en Electrónica de Alta Frecuencia y Telecomunicaciones (CMUN)
dc.creatorRamírez Arroyave, Germán Augusto
dc.date.accessioned2020-10-01T15:47:04Z
dc.date.available2020-10-01T15:47:04Z
dc.date.created2020-10-01T15:47:04Z
dc.date.issued2018-12-07
dc.identifierhttps://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.languageeng
dc.publisherBogotá - Ingeniería - Doctorado en Ingeniería - Sistemas y Computación
dc.publisherUniversidad Nacional de Colombia - Sede Bogotá
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dc.rightsAtribución-NoComercial 4.0 Internacional
dc.rightsAcceso abierto
dc.rightshttp://creativecommons.org/licenses/by-nc/4.0/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightsDerechos reservados - Universidad Nacional de Colombia
dc.titleDesign of a multiport frequency reconfigurable antenna suitable for IMT-advanced communications systems
dc.typeOtro


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