Patent ID: 6768471
Filing Date: 2004-07-27
Classification: H01Q

Abstract:
A phased array antenna comprising:a planar antenna subassembly comprising an array of radio frequency (RF) modules disposed in a reference plane; and a contoured waveguide subassembly comprising a contoured aperture honeycomb structure defining a plurality of passages extending between opposed first and second surfaces, said contoured aperture honeycomb structure disposed with respect to said planar antenna subassembly such that each RF module is in communication with a respective passage of said contoured aperture honeycomb structure, said contoured aperture honeycomb structure also disposed with respect to said planar antenna subassembly such that the second surface of said contoured aperture honeycomb structure faces away from said planar antenna subassembly and is contoured such that at least portions of the second surface are at an oblique angle with respect to the reference plane.