Cage aerial
Image:Amateur T cage antenna 2BML 1922.jpg|thumb|upright=1.3|Historic Radio Engineers Club station, Riverhead, New York, in 1922; a cage T-antenna 60 ft high by 90 ft long. The conductor is made of a "cage" of 6 wires held apart by wooden spreaders; this increased capacitance and decreased ohmic resistance. This antenna achieved transatlantic contacts on 1.5 MHz, at a power of 440 W.
A cage antenna is a radio antenna where a conventional design has been augmented by replacing a single long conductor with several parallel wires, connected at their ends, and held in position by ring spacers or support struts mounted on a central mast. The "cage" is either mounted around a central mast or suspended from overhead wires.
Examples
A few examples of aerials made of cage sections are:; Quadrant antenna : A quadrant antenna is an omnidirectional shortwave transmitting antenna shaped like a rhombus or lozenge, made from two identical, opposing L-shaped cage dipoles lying in the same horizontal plane, aligned with their 'elbows' pointing in opposite directions
; Curtain antenna : A curtain array antenna is a directional shortwave transmitting antenna made of several parallel-aligned dipoles, each made of cage sections.