In an antenna array made of multiple conductive elements, a driven element or active element is electrically connected to the receiver or transmitter while a parasitic element is not.
Yagi antenna for UHF TV reception with 22 parasitic elements; 4 reflectors attached to the vertical bracket at left, and 18 directors attached to the horizontal beam at right. The driven element is attached to the black box next to the reflectors. The antenna is most sensitive to radio waves coming from the right, parallel to the antenna's axis.
Maszt radiowy w Konstantynowie
Antenna (radio)
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In radio-frequency engineering, an antenna or aerial is a structure used to convert alternating electric currents into radio waves for transmission, and to convert radio waves back into electric curre
Driven and parasitic elements
…often assumed that other elements are not driven (i.e. passive radiator) and that the array is tightly coupled (spacing far below a wavelength). In a radio antenna, a parasitic element or passive radiator is a conductive element, typically a metal rod, which is not electrically connected to anything else. Multielement…
A television antenna used for reception of television signals in VHF
Antennas of the Atacama Large Millimeter/submillimeter Array
An automobile's whip antenna, a common example of an omnidirectional antenna
Half-wave dipole antenna