Rigid rod or equivalent tubular element or elements

Full Title

Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements > Resonant antennas > with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole (H01Q9/44 takes precedence) > Two collinear substantially straight active elements; Substantially straight single active elements (H01Q9/28 takes precedence) > Rigid rod or equivalent tubular element or elements