{"id":95530,"date":"2018-03-11T10:15:32","date_gmt":"2018-03-11T10:15:32","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/engineering-applications-of-metamaterials-in-electromagnetics-filters-and-antennas\/"},"modified":"2018-03-11T10:15:32","modified_gmt":"2018-03-11T10:15:32","slug":"engineering-applications-of-metamaterials-in-electromagnetics-filters-and-antennas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/engineering-applications-of-metamaterials-in-electromagnetics-filters-and-antennas\/","title":{"rendered":"Engineering applications of metamaterials in electromagnetics: filters and antennas"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Alejandro Lucas Borja <\/strong><\/h2>\n<p>En esta tesis, las principales caracter\u00edsticas de diferentes estructuras basadas en metamateriales son analizadas con el objetivo de desarrollar dispositivos planares eficientes y con dimensiones electricamente peque\u00f1as. El trabajo de investigaci\u00f3n se centra en dos dominios fundamentales, en dispositivos selectivos en frecuencia y elementos radiantes. en relaci\u00f3n a la primera parte de investigaci\u00f3n, diferentes l\u00edneas coplanares (cpw) cargadas con anillos resonantes (srr), tiras en paralelo, y\/o ranuras en serie son presentadas. Las caracter\u00edsticas de tales distribuciones pueden ser controladas dise\u00f1ando correctamente los elementos constityentes de la l\u00ednea. Las tiras conectadas en paralelo permiten controlar la selectividad en frecuencia por medio de una ingenier\u00eda de la frecuencia el\u00e9ctrica de plasma, proporcinando altos nivels de rechazo por encima de la banda de paso. Alternativamente, la adici\u00f3n de capacidades en serie con respecto a celdas unitarias anteriores proporciona una respuesta de transmisi\u00f3n casi sim\u00e9trica. Estas estructuras exhiben un car\u00e1cter diestro a lo largo de la banda de paso, contrariamente a las l\u00edneas zurdas convencionales. De igual modo, se aprecia un aumento de los factores de calidad cargados manteniendo unas p\u00e9rdidas de inserci\u00f3n bajas. La interpretaci\u00f3n de estas estructuras se basa en an\u00e1lisis electromagn\u00e9ticos, simulaciones de los circuitos equivalentes, y medida de las respuestas de diversos prototipos dise\u00f1ados para operar en  la banda de microondas. asimismo, en la segunda parte de la investigaci\u00f3n nuevos tipos de antenas el\u00e9ctricamente peque\u00f1as usando l\u00edneas de transmisi\u00f3n zurdas son estudiadas. Las antenas se componen de una l\u00ednea de transmisi\u00f3n cargada peri\u00f3dicamente con bobinas colocadas en paralelo y condensadores en serie.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Engineering applications of metamaterials in electromagnetics: filters and antennas<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Engineering applications of metamaterials in electromagnetics: filters and antennas <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Alejandro Lucas Borja <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 22\/07\/2009<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Jorge  Juan Carbonell Olivares<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: alejandro Valero nogueira <\/li>\n<li>Juan  Fernando Martin antolin (vocal)<\/li>\n<li>peter Hall (vocal)<\/li>\n<li>didier Lippens (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Alejandro Lucas Borja En esta tesis, las principales caracter\u00edsticas de diferentes estructuras basadas en metamateriales son analizadas [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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