Patent ID: 9362615
Filing Date: 2016-06-07
CPC Classification: H01Q

Claim Text:
1. A radome, comprising: a dielectric wall; an inductive metallic grid defining grid apertures embedded in and/or disposed on the dielectric wall; and a repeating lattice of metallic structures embedded in and/or disposed on the dielectric wall within the grid apertures; the grid apertures and the metallic structures being provided in a 1:1 singularly discrete metallic structure-to-grid aperture configuration with each grid aperture and each corresponding metallic structure having different shapes, and the grid being tuned simultaneously to permit bandpass transmission at least at upper and lower frequencies and to inhibit generation of grating lobes at least at the upper frequency for incidence angles in excess of 70 degrees, wherein the grid is characterized with a grid spacing smaller than 40% of a free space wavelength at the upper frequency.