초록 ▼

A low profile receiving and/or transmitting antenna includes an array of lenses that focuses millimeter wave or other radiation onto a plurality of conventional patch antenna elements. The lenses and antenna elements are physically configured so that radiation at a tuning wavelength impinging on the

A low profile receiving and/or transmitting antenna includes an array of lenses that focuses millimeter wave or other radiation onto a plurality of conventional patch antenna elements. The lenses and antenna elements are physically configured so that radiation at a tuning wavelength impinging on the antenna at a particular angle of incidence is collected by the lenses and focused onto the antenna elements in-phase. Two rotatable prisms may be disposed above the lenses to alter the angle of incidence of incoming or outgoing radiation to match the particular angle of incidence.

대표청구항 ▼

[ What is claimed is:] [1.] An antenna comprising:a plurality of antenna elements disposed in an antenna plane; anda plurality of lenses disposed adjacent the antenna elements, wherein an optical axis of each of the lenses is oriented at a particular angle of incidence with respect to a normal to th

[ What is claimed is:] [1.] An antenna comprising:a plurality of antenna elements disposed in an antenna plane; anda plurality of lenses disposed adjacent the antenna elements, wherein an optical axis of each of the lenses is oriented at a particular angle of incidence with respect to a normal to the antenna plane, said angle of incidence being other than substantially perpendicular to said antenna plane, said lenses thereby being able to collect and focus radiation impinging on the lenses at the particular angle of incidence and onto associated antenna elements.