{"id":58683,"date":"2024-10-09T11:13:28","date_gmt":"2024-10-09T09:13:28","guid":{"rendered":"https:\/\/www.techopedia.com\/es\/?post_type=definition&p=58683"},"modified":"2024-10-09T11:15:08","modified_gmt":"2024-10-09T09:15:08","slug":"antena","status":"publish","type":"definition","link":"https:\/\/www.techopedia.com\/es\/definicion\/antena","title":{"rendered":"Antena"},"content":{"rendered":"

\u00bfQu\u00e9 significa antena?<\/span><\/h2>\n

Una antena es un transductor que convierte los campos de radiofrecuencia (RF) en corriente alterna o viceversa.<\/strong> Existen antenas de recepci\u00f3n y de transmisi\u00f3n<\/a> para enviar o recibir transmisiones de radio. Las antenas desempe\u00f1an un papel importante en el funcionamiento de todos los equipos de radio. Se utilizan en redes de \u00e1rea local inal\u00e1mbricas<\/a>, telefon\u00eda m\u00f3vil<\/a> y comunicaci\u00f3n por sat\u00e9lite<\/a>.<\/p>\n

Definici\u00f3n de antena<\/span><\/h2>\n

Las antenas tienen una disposici\u00f3n de conductores met\u00e1licos con una conexi\u00f3n el\u00e9ctrica a receptores o transmisores. Los transmisores de radio fuerzan la corriente a trav\u00e9s de estos conductores para crear campos magn\u00e9ticos alternos<\/strong>. Estos campos inducen tensi\u00f3n en los terminales de la antena, que est\u00e1n conectados a la entrada del receptor. En el campo lejano, el campo magn\u00e9tico oscilante se acopla con un campo el\u00e9ctrico oscilante similar, que define ondas electromagn\u00e9ticas capaces de propagar la se\u00f1al a grandes distancias.<\/p>\n

Las ondas de radio son ondas electromagn\u00e9ticas que transportan se\u00f1ales a trav\u00e9s del aire a la velocidad de la luz<\/strong> sin ninguna p\u00e9rdida de transmisi\u00f3n. Las antenas pueden ser omnidireccionales, direccionales o arbitrarias.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00bfQu\u00e9 significa antena? Una antena es un transductor que convierte los campos de radiofrecuencia (RF) en corriente alterna o viceversa. Existen antenas de recepci\u00f3n y de transmisi\u00f3n para enviar o recibir transmisiones de radio. Las antenas desempe\u00f1an un papel importante en el funcionamiento de todos los equipos de radio. Se utilizan en redes de \u00e1rea […]<\/p>\n","protected":false},"author":7813,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"definitioncat":[331],"class_list":["post-58683","definition","type-definition","status-publish","format-standard","hentry","definitioncat-hardware"],"acf":[],"yoast_head":"\n\u00bfQu\u00e9 es una antena y c\u00f3mo funciona?<\/title>\n<meta name=\"description\" content=\"Te explicamos c\u00f3mo hacen las antenas para transmitir datos a velocidades cercanas a la luz sin perder ning\u00fan tipo de se\u00f1al.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.techopedia.com\/es\/definicion\/antena\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" 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