Patent ID: 7683849

Claim:
An antenna system for electromagnetic signals, operational over a frequency range, comprising: a substantially vertical and linear coaxial transmission line having an outer conductor and an inner conductor with a common longitudinal axis, wherein the transmission line is configured to carry electromagnetic signals over a frequency range, and wherein the transmission line originates at an origination node and ends at a terminal node; and a first bay configured to radiate at least a portion of the electromagnetic signals carried on the transmission line, further comprising a plurality of vertically oriented dipoles, wherein the dipoles that comprise the first bay occupy a first longitudinal position along the transmission line, proximal to the origination node, wherein the first bay dipoles include elements coupled to the inner conductor at a plurality of azimuthal and longitudinal positions, wherein the respective positions of the first bay dipole elements jointly provide impedance cancellation at least in part, and wherein the combination of azimuthal position and relative longitudinal position of the first bay dipole elements realizes a substantially non-omnidirectional pattern of signal strength and gain.