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Topic: Yagi


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  Yagi antenna -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-05)
A Yagi-Uda Antenna, commonly known simply as a Yagi antenna, is a (An electrical device that sends or receives radio or television signals) antenna consisting of an array of a (A pair of equal and opposite electric charges or magnetic poles separated by a small distance) dipole and additional parasitic elements.
Yagi antennas which include one or more director elements, which, by virtue of their being arranged at approximately a quarter-wavelength mutual spacing and being progressively slightly shorter than a half wavelength, direct signals of increasingly higher frequencies onto the active dipole.
Yagi published the first English-language article on the antenna in 1928 and it came to be associated with his name.
www.absoluteastronomy.com /encyclopedia/y/ya/yagi_antenna.htm   (407 words)

  
 Yagi antenna - Wikipedia, the free encyclopedia
A Yagi-Uda Antenna, commonly known simply as a Yagi antenna, is a antenna consisting of an array of a dipole and additional parasitic elements.
Yagis are directional along the axis perpendicular to the dipole in the plane of the elements, from the reflector through the driven element and out the director(s); if you hold out your arms to form a dipole and have the reflector behind you, you would receive signals with maximum gain from in front of you.
The Yagi was first widely used during World War II for airborne radar sets, because of its simplicity and directionality.
www.netipedia.com /index.php/Yagi_antenna   (482 words)

  
 Encyclopedia: Yagi, Kyoto   (Site not responding. Last check: 2007-11-05)
Updated 272 days 20 hours 35 minutes ago.
Yagi (八木町; -cho) is a town located in Funai District, Kyoto, Japan.
As of 2003, the town has an estimated population of 8,916 and a density of 179.90 persons per km².
www.nationmaster.com /encyclopedia/Yagi,-Kyoto   (85 words)

  
 Hidetsugu Yagi - Education - Information - Educational Resources - Encyclopedia - Music
Hidetsugu Yagi - Education - Information - Educational Resources - Encyclopedia - Music
Hidetsugu Yagi (八木 秀次, January 28, 1886 - January 19, 1976) was a Japanese electrical scientist who wrote several important articles that led to the development of the Yagi antenna, which allows directional communication with electromagnetic waves.
He received the Blue Ribbon Award, the Culture Award and the Large Asahi Award of the First Class.
education.music.us /H/Hidetsugu-Yagi.htm   (303 words)

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