Patent ID: 6639566
Filing Date: 2003-10-28
Classification: H01Q

Abstract:
An antenna for communicating two independent microwave signals being orthogonally polarized from a first point to multiple points, said antenna comprising:a plurality of conductive plates being substantially parallel, and separated by a distance of at least one-half a wavelength of the microwave signals, an opening between an edge of said conductive plates providing for transmission of the microwave signals; a reflective surface coupled to said plurality of conductive plates, and disposed in reflective relation to the opening; a plurality of surfaces coupled to edges of said plurality of plates, said plurality of surfaces forming wide and narrow apertures, the narrow and wide apertures directed toward said reflective surface; a substantially square waveguide feed disposed in relation to the narrow aperture, and used for supplying the microwave signals through the narrow aperture; and means, associated with said plurality of surfaces, for tapering the power density of the microwave signal.