Yagi antenna

From International Dictionary of Marine Aids to Navigation
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4-1-515

An antenna comprising one primary or fed element and two or more secondary or parasitic elements lying parallel to it in a single plane so as to constitute an end fire array. The usual arrangement of secondary elements consists of one reflector and one or more directors.

Reference: B.S. (modified)




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)