Abstract: A waveguide system that includes a plurality of waveguide sections, each taking the form of an elongated longitudinally extending tubular member having a substantially circular shaped wall in cross section which coaxially surrounds a longitudinal axis. The wall has a longitudinally extending trough portion extending radially inward toward the longitudinal axis. The trough portion is defined by a pair of circumferentially spaced wall portions extending inwardly and joined together by a connecting wall portion. The wall portions together define a ridge having an inner surface on the interior side of the wall and an outer surface on the exterior side of the wall. Each waveguide section has opposing ends with each end having a longitudinally extending peripheral lip at the ridge. The wall has at each said end an annular mounting flange extending essentially radially outward from the exterior side of the wall.

Abstract: An antenna system is presented herein for radiating RF energy. This system includes a vertical mast having N vertically oriented faces which surround a vertically extending mast and wherein N is equal to at least 3. A plurality of vertically spaced antenna bays is provided with each bay having an array of N antennas carried by the mast. Each antenna includes radiating means located substantially in a plane parallel to one of the N faces. Each face is oriented at a given angle ##EQU1## from an adjacent face. The mast has N corners, each corner being located intermediate a pair of faces. N fins are provided with each fin being associated with one of the corners and extending radially outward of the axis beyond the associated corner.

Abstract: An antenna system is presented having a feed for feeding an antenna and apparatus for supporting the feed. The system includes a vertically oriented, electrically conductive hollow mast which carries first and second groups of vertically spaced bays of radiating elements. Each bay includes an arrangement of N radiating elements extending outward from the mast. N vertically oriented electrically conductive, hollow feed support members are spaced away from the mast. Each support member carries an elongated feed conductor extending vertically within the support member. The support members extend vertically upward coextensively with that of the mast to approximately midway between said first and second groups of bays. N hollow electrically conductive, coupling arms are provided and each arm extends between the mast and one of the N support members. Each arm carries first and second conductors each connected at one end to a feed conductor.