Antenna Array Assembly

Abstract: An antenna array assembly comprises a ground plane (5), an array of patch radiator elements (4a-4h) having a plurality of rows (17a-17h) and a plurality of columns (16a-16h) of patch radiator elements disposed in a plane parallel to a first face of the ground plane and a non-conductive cover (1) disposed in a generally parallel relationship to the ground plane (5). The non- conductive cover (1) has a first face, disposed towards the array of patch radiator elements (4a-4h), having an arrangement of alternating parallel ridges (2a-2d) and grooves (3a-3d), in which, in a cross section in a plane perpendicular to the first face of the ground plane, the ridges (2a-2d) extend towards the array of patch radiator elements and the grooves (3a-3d) extend away from the array of patch radiator elements. Each row of patch radiator elements is disposed in a parallel relationship to each ridge.

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