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 (yä′gē, yăg′ē)
n. pl. ya·gis
A directional radio antenna consisting of a parallel array of similar elements in which only one element is directly connected to the feed line from the receiver or transmitter.

[After Hidetsugu Yagi (1886-1976), Japanese electrical engineer.]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.yagi - a sharply directional antenna
directional antenna - an antenna that transmits or receives signals only in a narrow angle
References in periodicals archive ?
Like all of MAXRAD's BMOY antennas, the 3-element yagis are designed to provide outstanding durability and superior performance under all types of weather conditions.
No other yagi antenna series on the market provides the performance, durability and model selection that the MAXRAD BMOY line offers," commented Larry Bess, MAXRAD's VP of Marketing.
When using permanently erected mobile units, roads may have to be cleared of overhanging branches (Hegdal and Colvin, 1986), especially for a null system consisting of two yagis spaced one wavelength apart (183 centimeters).