{"id":31819,"date":"1997-01-01T00:00:00","date_gmt":"1997-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/fractal-antennas\/"},"modified":"1997-01-01T00:00:00","modified_gmt":"1997-01-01T00:00:00","slug":"fractal-antennas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/astronomia-y-astrofisica\/fractal-antennas\/","title":{"rendered":"Fractal antennas."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Carles Puente Baliarda <\/strong><\/h2>\n<p>Las antenas son dispositivos esencialmente de banda estrecha; es decir, su comportamiento es altamente dependiente de la frecuencia de operacion. La relacion entre la longitud de onda de trabajo y el tama\u00f1o de la antena condiciona enormemente sus prestaciones. Ello implica que es complicado realizar antenas que funcionen de la misma forma en varias frecuencias, o que tengan un tama\u00f1o mucho menor que la longitud de onda.  en esta tesis se introduce el dise\u00f1o fractal de antenas como una posible alternativa para abordar este tipo de problemas. En particular, se muestra como las propiedades geometricas de autosimilitud y dimension no entera, que son caracteristicas de los objetos fractales, pueden ser utiles en el dise\u00f1o de antenas multifrecuencia (multibanda) y de antenas peque\u00f1as. A lo largo de la tesis se muestran varios resultados experimentales, numericos y teoricos que confirman este hecho.  tras revisar las restricciones mas comunes de las antenas clasicas, la tesis empieza enunciando teoricamente el comportamiento multibanda de las antenas con geometria fractal. El estudio se particulariza entonces al caso de agrupaciones fractales de antenas y a fractores de agrupacion fractales. Se demuestra que las agrupaciones fractales ideales tienen un comportamiento multibanda y que las versiones implementables de dichas estructuras ideales conservan algunas de las propiedades multibanda.  la antena de sierpinski fue la primera verificacion experimental de que se podia construir una antena fractal multibanda. A lo largo de la tesis se introduce la nueva geometria de la antena y sus propiedades fundamentales.  se ensayan tambien varias modificaciones de la estructura inicial, tales como variaciones en el angulo del vertice de alimentacion, variaciones en la inclinacion de la antena, del espaciado entre bandas, etc. Tambien se describe como otras formas fractales aleatorias poseen tambien propiedades multibanda.  la ultima parte<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Fractal antennas.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Fractal antennas. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Carles Puente Baliarda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de catalunya<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1997<\/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>Rafael Pous Andres<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jes\u00fas Sanchez Mi\u00f1ana <\/li>\n<li>Rafael Antonio G\u00f3mez Mart\u00edn (vocal)<\/li>\n<li>Miguel Ferrando Bataller (vocal)<\/li>\n<li>Dwight Jaggard (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Carles Puente Baliarda Las antenas son dispositivos esencialmente de banda estrecha; es decir, su comportamiento es altamente [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[88366,1050,15596,3796],"tags":[73224,88368,27926,15964,10565,88367],"class_list":["post-31819","post","type-post","status-publish","format-standard","hentry","category-antenas-telescopicas","category-astronomia-y-astrofisica","category-politecnica-de-catalunya","category-radioastronomia","tag-carles-puente-baliarda","tag-dwight-jaggard","tag-jesus-sanchez-minana","tag-miguel-ferrando-bataller","tag-rafael-antonio-gomez-martin","tag-rafael-pous-andres"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/31819","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=31819"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/31819\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=31819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=31819"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=31819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}