{"id":64576,"date":"2018-03-09T22:52:36","date_gmt":"2018-03-09T22:52:36","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analysis-and-design-of-antennas-for-wireless-communications-using-modal-methods\/"},"modified":"2018-03-09T22:52:36","modified_gmt":"2018-03-09T22:52:36","slug":"analysis-and-design-of-antennas-for-wireless-communications-using-modal-methods","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/tecnologia-de-las-telecomunicaciones\/analysis-and-design-of-antennas-for-wireless-communications-using-modal-methods\/","title":{"rendered":"Analysis and design of antennas for wireless communications using modal methods"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Eva Antonino Daviu <\/strong><\/h2>\n<p>El dise\u00f1o de antenas para los nuevos sistemas de comunicaciones inal\u00e1mbricas ha suscitado un creciente inter\u00e9s en los \u00faltimos a\u00f1os. El principal objetivo de esta tesis doctoral es la propuesta de un m\u00e9todo general de dise\u00f1o de antenas para sistemas de comunicaciones inal\u00e1mbricas que proporcione una visi\u00f3n f\u00edsica del proceso de dise\u00f1o. Para alcanzar este objetivo, se propone el uso de un m\u00e9todo basado en la descomposici\u00f3n modal de la corriente en la superficie del cuerpo conductor. Los modos tienen la ventaja de proporcionar una visi\u00f3n m\u00e1s f\u00edsica del comportamiento radiante de la antena, as\u00ed como informaci\u00f3n muy \u00fatil para la optimizaci\u00f3n de la geometr\u00eda de la antena y para la selecci\u00f3n del mecanismo \u00f3ptimo de alimentaci\u00f3n y su localizaci\u00f3n.  en la tesis se realizar\u00e1 una revisi\u00f3n de los diferentes m\u00e9todos modales disponibles, as\u00ed como de los par\u00e1metros m\u00e1s importantes a tratar cuando se trabaja con soluciones modales. Adem\u00e1s, se investigar\u00e1 un m\u00e9todo para obtener expresiones cerradas para las corrientes superficiales en objetos conductores planos abiertos. Como se ver\u00e1, los objetos planos con formas can\u00f3nicas se pueden interpretar en muchas ocasiones como deformaciones de objetos tridimensionales cuyas superficies coinciden con las de algunos de los sistemas de coordenadas curvil\u00edneas. De esta forma, se obtendr\u00e1n expresiones cerradas para los modos vectoriales en un disco conductor circular y una tira plana infinita. Estas funciones se propondr\u00e1n como funciones base de dominio completo en problemas m\u00e1s complejos que incluyan este tipo de superficies planas.  los modos de corriente definidos a partir de las funciones de onda vectoriales son de naturaleza compleja, lo que dificulta en ocasiones su uso para el dise\u00f1o de antenas. Por el contrario, la teor\u00eda de los modos caracter\u00edsticos proporciona una descomposici\u00f3n de la corriente total en la superficie de un cuerpo conductor de forma arbitraria en un conjunto de modos real<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Analysis and design of antennas for wireless communications using modal methods<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Analysis and design of antennas for wireless communications using modal methods <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Eva Antonino Daviu <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 19\/05\/2008<\/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>Miguel Ferrando Bataller<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Luis Jofre roca <\/li>\n<li>milos Mazanek (vocal)<\/li>\n<li>Mar\u00eda no Baquero escudero (vocal)<\/li>\n<li>Marta Martinez velazquez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Eva Antonino Daviu El dise\u00f1o de antenas para los nuevos sistemas de comunicaciones inal\u00e1mbricas ha suscitado un [&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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