Patent ID: 6424317
Filing Date: 2002-07-23
Classification: H01Q

Abstract:
An antenna, which comprises:at least two substantially planar conductors cooperatingly arranged in a substantially planar configuration, the substantially planar configuration having a center and a radius associated therewith; and a reflective backing situated on an axial side of the substantially planar configuration, the reflective backing including a radially scaled, quasi-periodic dielectric structure, the radial scaling of the dielectric structure being in the direction of the radius of the substantially planar configuration, the quasi-periodic dielectric structure including a substantially solid dielectric substrate having a predetermined dielectric constant and a plurality of dielectric elements arranged adjacent to one another and being at least partially embedded in the solid dielectric substrate, the lateral cross-sectional dimensions of the plurality of dielectric elements increasing from the center of the substantially planar configuration radially outwardly therefrom, the plurality of dielectric elements having a predetermined dielectric constant which is less than the predetermined dielectric constant of the substantially solid dielectric substrate.