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yagi (antenna) Definition

yagi (antenna) (yä′gē, yag′ē)

noun

a VHF or UHF directional antenna array in which a basic dipole antenna is supplemented by several parallel reflector and director elements: used when television reception is weak

Etymology: after H. Yagi (1886-1976), Jpn electrical engineer

Yagi antenna Telecom Definition
Also known as Yagi-Uda antenna.A VHF or UHF vertical antenna array comprising a basic radiator (dipole) antenna supplemented by a slightly longer reflector element mounted directly behind the dipole and a slightly shorter director element mounted directly in front of the dipole. A Yagi antenna is used to improve the directional gain of a television antenna when reception is otherwise weak. Ham radio enthusiasts commonly use homemade Yagi-Uda antennas.The Yagi-Uda antenna was invented at Tohuku University in 1926 by Hidetsugu Yagi (1886

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