ndmtag.defineAdSlot('Encyclo.nl-Sub-728x90-L',{type:'appnexus',id:3232904,size:[728,90]}); 1927 begann Uda seine Arbeit an Kommunikations-Sendern und Empfängern und entwickelte einen regenerativen und super-regenerativen Empfänger für den Frequenzbereich von 300 bis 1500 MHz. google_ad_client = "ca-pub-2707004110972434"; The antenna, which is effective in the higher-frequency ranges, has been important for radar, television, and amateur radio. This page was last edited on 26 February 2016, at 19:21. Shintarō Uda (jap. Hij werd geboren in een dorp dat nu tot Nyuzen (Toyama) behoort. Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002. Obgleich er darin Udas Verdienste herausstellte, wurde sie dann als Yagi-Antenne bekannt. This technology was not widely received in Japan, but became prevalent among the Allies, who depended on these antennas for radar during World War II. He and Uda developed an antenna for receiving ultrashort waves, publishing their first report in 1926 and receiving patents in Japan and the United States (Number 1,860,123). Yagi fertigte 1928 angesichts eines IRE-Treffens in den USA eine englische Zusammenfassung. google_ad_width = 160; Juli 1896 in Funami (heute: Nyūzen), Shimoniikawa-gun, Präfektur Toyama; † 18. /* 728x90, created 7/15/08 */ Japanese engineer. Uda Shintarō (jap. is created by American Heritage Publishing. http://nl.wikipedia.org/wiki/Shintaro_Uda. Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles. jQuery(function(){jQuery('ul.sf-menu').superfish({delay:500,animation:{opacity:'show',height:'show'},speed:'normal',autoArrows:false,disableHI:true});var viewportmeta = document.querySelector && document.querySelector('meta[name="viewport"]'),ua = navigator.userAgent,gestureStart = function () {viewportmeta.content = "width=device-width, minimum-scale=0.25, maximum-scale=1.6";},scaleFix = function () {if (viewportmeta && /iPhone|iPad/.test(ua) && !/Opera Mini/.test(ua)) {viewportmeta.content = "width=device-width, minimum-scale=1.0, maximum-scale=1.0";document.addEventListener("gesturestart", gestureStart, false);}};scaleFix();}) Mit seinem Mitstudenten Yuji Nishimura hatte er die natürliche Wellenlänge von eingängigen Spulen (d. h. mit nur einer Windung) untersucht. Ab 1937 arbeitete Uda an der Entwicklung des Magnetrons für das X-Band. In February 1926, Yagi and Uda published their first report on the wave projector antenna in a Japanese publication. Gentai Sato zeigte sich im Zweiten Weltkrieg verwundert, dass das Radar der Alliierten mit Yagi-Antennen ausgerüstet war. Beginning in 1924, Professor Hidetsugu Yagi and his assistant, Shintaro Uda, designed and constructed a sensitive and highly-directional antenna using closely-coupled parasitic elements. }. controls.focus(); Dann platzierte er nach Nishimuras Idee eine parasitäre Spule vor die aktive Spule um eine stärker gerichtete Strahlung zu erzielen. if ( e.which == 86 && ctrl ) return; jQuery(function(){jQuery('.sf-menu').mobileMenu({defaultText: "Navigeer naar..."});}); After the war, this antenna was used to receive television signals. Uda studeerde elektrotechniek onder Hidetsugu …

if (e.which > 90 || e.which < 48) return; google_ad_client = "pub-2707004110972434"; World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization. Die Experimente mit dem Oszillator als Sender führten zur Entdeckung seines "Wave Projectors".

//-->, This article will be permanently flagged as inappropriate and made unaccessible to everyone. Hierzu erhielt das Institut finanzielle Unterstützung von der Saito Gratitude Foundation. Are you certain this article is inappropriate? Reproduction Date: Shintaro Uda (宇田 新太郎, Uda Shintarō, June 1, 1896 - August 18, 1976) Japanese inventor. Zwischen März 1926 und Juli 1929 veröffentlichte Uda in der JIEE auf Japanisch eine Artikelserie On the wireless Beam of short electric waves. Nishimura, der im März 1924 graduiert hatte, veröffentlichte die Ergebnisse im September 1925 im Journal of the Institut of Electrical Engineering of Japan (JIEE) unter Measurements of natural wavelengths of single-turn coil[1]. Shintaro Uda assisted Hidetsugu Yagi with the invention of a wireless antenna that would prove to be valuable as a radar antenna and a television receiver. google_ad_height = 600; The Yagi-Uda directive short wave antenna, http://www.ieeeghn.org/wiki/index.php/Milestones:Directive_Short_Wave_Antenna,_1924. }); WHEBN0014305905 google_ad_width = 728; Learn how and when to remove this template message, "Projector of the Sharpest Beam of Electric Waves", Scanning the Past: A History of Electrical Engineering from the Past. Timeline of electrical and electronic engineering, Electronic Industries Association of Japan, Japan Electronic Industries Development Association, Japan Electronics and Information Technology Industries Association, Articles containing Japanese-language text, WorldHeritage articles with VIAF identifiers, http://ieee.cincinnati.fuse.net/reiman/05_2004.htm. Article Id: World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). In February 1926, Yagi and Uda published their first report on the wave projector antenna in a Japanese publication. ndmtag.cmd.push(function() {ndmtag.settings.set('lazyLoad', true);}); The popular magazine of the history of technology and innovation.

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