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dc.contributor.advisorRodríguez-Solís, Rafael A.
dc.contributor.authorJaramillo-Henao, Carlos A.
dc.date.accessioned2019-05-14T14:54:11Z
dc.date.available2019-05-14T14:54:11Z
dc.date.issued2004
dc.identifier.urihttps://hdl.handle.net/20.500.11801/2141
dc.description.abstractIn this thesis, the Design of Experiments technique is applied to characterize rectangular slot ring antennas in terms of their physical dimensions and relative permittivity of the substrate. Several 25 factorial designs were simulated in two different electromagnetic simulators, Momentum and Designer, to collect data for the statistical analysis. Three different approaches were used to identify the most influential factors in the antenna response. The first one was an intuitive approach using a geometrical representation of the DOE input factors. This approach allowed to identify the factors that affected the antenna resonance frequency, multiband operation, impedance bandwidth and return loss. The second approach was based on a linear regression model that was applied to the return loss response. Confidence frequency bands based on the adjusted determination coefficient were presented; in these bands the linear regression models were reliable to identify the significant factors in the antenna response. Finally, several linear models for different resonance frequencies and antenna input impedance were computed using punctual responses and two replicates of the same design. In order to validate the simulations some prototypes were fabricated and tested.en_US
dc.description.abstractEn esta tesis se utilizó la técnica de diseño de experimentos para caracterizar antenas rectangulares de anillo en términos de sus dimensiones físicas y la permitividad relativa del substrato. Se simularon varios diseños factoriales de 25 en dos simuladores electromagnéticos diferentes, Momentum y Designer, con el objetivo de reunir datos para el análisis estadístico. Se aplicaron tres diferentes tipos de análisis para identificar los factores más influyentes en la respuesta de la antena. El primero fue un análisis intuitivo utilizando una representación geométrica de los factores de entrada del diseño de experimentos. Este método permitió identificar los factores que afectaban la frecuencia de resonancia de la antena, operación de multi banda, ancho de banda de la impedancia de entrada y las perdidas de retorno. El segundo análisis fue basado en un modelo de regresión lineal que fue aplicado a la respuesta de perdidas de retorno. Se definieron bandas de confianza con base en el coeficiente de determinación ajustado; en estas bandas los modelos de regresion lineal eran confiables para identificar los factores significantes en la respuesta de la antena. Finalmente, en el tercer método se calcularon modelos lineales para la frecuencia de resonancia y la impedancia de entrada de la antena utilizando respuestas puntuales y dos replicas del mismo diseño. Para validar las simulaciones se fabricaron y se midieron algunos prototipos.en_US
dc.description.sponsorshipNational Science Foundation CARREER Award ECS-0093650en_US
dc.language.isoEnglishen_US
dc.subjectSlot ring antennasen_US
dc.subjectcharacterizationen_US
dc.subjectdesignen_US
dc.titleDesign and characterization of broad band and multi-band slot ring antennasen_US
dc.typeThesisen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2004 Carlos A. Jaramillo Henaoen_US
dc.contributor.committeeColom-Ustáriz, José G.
dc.contributor.committeeCruz-Pol, Sandra L.
dc.contributor.representativeGonzález-Barreto, David
thesis.degree.levelM.S.en_US
thesis.degree.disciplineElectrical Engineeringen_US
dc.contributor.collegeCollege of Engineeringen_US
dc.contributor.departmentDepartment of Electrical and Computer Engineeringen_US
dc.description.graduationYear2004en_US


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    Items included under this collection are theses, dissertations, and project reports submitted as a requirement for completing a graduate degree at UPR-Mayagüez.

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