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Yagi antenna

A Dictionary of Astronomy | 1997 | 448 words | Copyright

Yagi antenna A directional aerial consisting of a dipole and a number of parallel rods arranged perpendicular to the line of sight. The rods in front of the dipole are termed directors, while the one behind is the reflector. The design is commonly used in television aerials, but in radio astronomy Yagi antennas are used as elements in interferometers. The design is named after the Japanese electrical engineer Hidetsuga Yagi (1886–1976).

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