Patent ID: 8164541

Claim:
A multiple radiator element apparatus comprising: a plurality of three-dimensional radiator elements, each three-multiple radiator element comprising: a plurality of sidewalls, at least one sidewall having one or more corrugations; an enclosed radiating top surface substantially perpendicular to the plurality of sidewalls, the radiating top surface transmitting or receiving electromagnetic waves, the three-dimensional radiator elements arranged so that their radiating top surfaces are substantially parallel and so that at least one pair of adjacent three-dimensional radiator elements are separated by a dielectric gap between sidewalls of the respective three-dimensional radiator elements, the dielectric gap forming a waveguide that couples an electromagnetic interference with the electromagnetic waves; and each radiator element further comprising a bottom side opposite from the radiating top surface, wherein at least one of the corrugations of one of the three-dimensional radiator elements interlaces with a corrugation of an adjacent three-dimensional radiator element without establishing a mechanical contact between the corrugations of the adjacent three-dimensional radiator element.