a parasitic linear array of parallel dipoles
A specific design for an outdoor TV antenna.
A type of directional antenna.
A directional antenna used to increase the effective range between two RF devices.
Directional Communications Antenna (synonyms "TBD" or "Laser Rig").
An antenna consisting of two or more elements ("arms" that run perpendicular to a common boom) which are fed parasitically from one or more "driven" elements. The number of elements is proportionate to the gain (more elements means more gain).
(Wireless) Antenna type that is directionally sensitive to signals received from the front, and less sensitive to those received from the sides or the rear.
in 1926 Hidetsugu Yagi and Shintaro Uda invented the "beam" antenna array. A directional antenna consisting of a dipole and two additional elements, a slightly longer reflector and a slightly shorter director. Electromagnetic coupling between the elements focuses maximum power (or reception) in the direction of the director.