{"id":2340,"date":"2012-01-03T06:21:25","date_gmt":"2012-01-03T04:21:25","guid":{"rendered":"http:\/\/www.ilkkimbuldu.com\/?p=2340"},"modified":"2018-03-13T00:34:15","modified_gmt":"2018-03-12T22:34:15","slug":"anteni-kim-buldu","status":"publish","type":"post","link":"https:\/\/www.ilkkimbuldu.com\/?p=2340","title":{"rendered":"Anteni kim buldu"},"content":{"rendered":"

Anten elektromanyetik dalgalar\u0131 yaymak veya yakalamak i\u00e7in kullan\u0131lan elektronik devre eleman\u0131d\u0131r. Antenler vericilere ba\u011fl\u0131 olarak\u00a0 kullan\u0131ld\u0131klar\u0131nda, enerjilerini, frekans\u0131 ayarlanabilir bir g\u00fc\u00e7 osilat\u00f6r\u00fcnden al\u0131rlar. K\u00fc\u00e7\u00fck bir k\u0131sm\u0131 \u0131s\u0131ya \u00e7evrilip harcanan enerjinin geri kalan b\u00f6l\u00fcm\u00fc, anten taraf\u0131ndan bo\u015flu\u011fa yay\u0131l\u0131r. Al\u0131c\u0131larla birlikte kullan\u0131lan antenlerin g\u00f6revi ise, bo\u015fluktaki elektromanyetik enerjiyi\u00a0 yakalay\u0131p, bunu bir transmisyon hatt\u0131 vas\u0131tas\u0131yla al\u0131c\u0131 devreye iletmektir.<\/p>\n

Anten \u0130talyan bilim adam\u0131 Guglielmo Marconi<\/a> taraf\u0131ndan 1906 y\u0131l\u0131nda icat edilmi\u015ftir. Marconi telgraf\u0131 icat ettikten sonra onu tellere ba\u011f\u0131ml\u0131 olmaktan kurtarmak amac\u0131yla anteni icat etti.<\/p>\n

\"Gugliemo-Marconi\"<\/p>\n

Uzun mesafeler aras\u0131nda bilgi (ses, g\u00f6r\u00fcnt\u00fc vb.) ta\u015f\u0131nmas\u0131 kablo ile yap\u0131ld\u0131\u011f\u0131nda zor ve masrafl\u0131d\u0131r. Ayr\u0131ca, uzun hatlar\u0131n \u00e7ekilmesi ve daimi bak\u0131m\u0131n\u0131n getirdi\u011fi bir \u00e7ok teknik problem vard\u0131r. Bilgi ta\u015f\u0131nmas\u0131 i\u015finde elektromanyetik dalgalardan istifade edildi\u011finde, bu dalgalar\u0131 y\u00fcksek enerji ile atmosfere (veya uzay bo\u015flu\u011funa) b\u0131rakabilecek elemanlar gerekir. Yine, bo\u015flukta yay\u0131lmakta olan elektromanyetik dalgalardan maksada uygun olan\u0131n\u0131 yakalay\u0131p kuvvetlendirdikten sonra al\u0131c\u0131 cihaza aktarmak gerekmektedri. \u0130\u015fte anten, bu iki temel ihtiyaca cevap veren elemand\u0131r.<\/p>\n

Al\u0131c\u0131 ve verici antenleri, fiziki \u00f6zellikleri nazara al\u0131nd\u0131\u011f\u0131nda, farks\u0131zd\u0131rlar. Hatta, bir anten ayn\u0131 anda hem al\u0131c\u0131 hem de verici vazifesi g\u00f6rebilir.<\/p>\n

Antenlerin genel \u00e7al\u0131\u015fma prensibi, alternatif ak\u0131m\u0131n bir iletkenden ge\u00e7erken elektromanyetik alan meydana getirmesi ile ilgilidir.\u00a0 Paralel iki iletkenin meydana getirdi\u011fi elektromanyetik alanlar, birbirlerinin te\u2019sirlerini yok ederler. Bu duruma mani olmak i\u00e7in\u00a0 antenler hususi \u015fekilde ayarlanm\u0131\u015f bir \u00e7ift iletkenden imal edilirler. Elektronik \u00f6zellikleri a\u00e7\u0131s\u0131ndan anten, seri rezonans devresine\u00a0 e\u015fde\u011ferdedir. Seri rezonans devresinde en fazla ak\u0131m rezonans frekans\u0131ndan ge\u00e7er. Ak\u0131m\u0131n fazla olmas\u0131, anten etraf\u0131ndaki\u00a0 elektromanyetik alan\u0131n fazla olmas\u0131 demektir.<\/p>\n

En fazla elektromanyetik enerji antenin boyu dalga boyuna e\u015fit oldu\u011funda yay\u0131l\u0131r. D\u00fc\u015f\u00fck frekanslarda kullan\u0131lan antenler daha basit ve yap\u0131m\u0131 kolayd\u0131r. Buna kar\u015f\u0131l\u0131k boylar\u0131 b\u00fcy\u00fck olur. Frekans y\u00fckseldik\u00e7e antenler k\u00fc\u00e7\u00fcl\u00fcr; fakat karma\u015f\u0131k bir hal al\u0131r ve yap\u0131m\u0131 zordur.<\/p>\n","protected":false},"excerpt":{"rendered":"

Anten elektromanyetik dalgalar\u0131 yaymak veya yakalamak i\u00e7in kullan\u0131lan elektronik devre eleman\u0131d\u0131r. Antenler vericilere ba\u011fl\u0131 olarak\u00a0 kullan\u0131ld\u0131klar\u0131nda, enerjilerini, frekans\u0131 ayarlanabilir bir g\u00fc\u00e7 osilat\u00f6r\u00fcnden al\u0131rlar. K\u00fc\u00e7\u00fck bir k\u0131sm\u0131 \u0131s\u0131ya \u00e7evrilip harcanan enerjinin…<\/p>\n","protected":false},"author":1,"featured_media":11410,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1352,1349,1351,1350,1353],"class_list":["post-2340","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji","tag-alici","tag-anten","tag-guglielmo-marconi","tag-marconi","tag-verici"],"_links":{"self":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2340"}],"collection":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2340"}],"version-history":[{"count":6,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2340\/revisions"}],"predecessor-version":[{"id":11411,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2340\/revisions\/11411"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/media\/11410"}],"wp:attachment":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}