Abstract: A television broadcast antenna includes a high-gain pylon consisting of a vertical array of slots in a conductive cylinder for radiating with high gain towards distant locations. An auxiliary low-gain vertically-polarized portion of the antenna has its phase center coincident with or near the phase center of the pylon for radiating a vertically polarized signal component. This position of the auxiliary portion reduces wind load and feed-line length by comparison with a location above the pylon. In a particularly advantageous embodiment of the invention, the horizontally-polarized radiation pattern of the pylon in the region within a few degrees below the main beam, which is the region directed towards local television viewers, has a low but relatively constant amplitude and phase.

Abstract: A circularly polarized antenna uses at least one pair of slots disposed at right angles to each other and cut into a vertical conducting mast to radiate the signal. The slots are vertically spaced about one half of a wavelength from each other to eliminate end fire radiation along the axis of the mast.