Abstract: Antennas for radiating radio frequency energy that are integrated into a structure are provided. In particular, one or more nonconductive slots are formed in one or more convex layers or surfaces of a structure. Moreover, each nonconductive slot can be associated with one or more feeds. In at least some embodiments, the structure is an airfoil with a first convex surface joined to a second convex surface along an edge, and the at least one nonconductive slot extends from a point in the first surface or a layer of the structure including the first surface across the edge to a point in the second surface or a layer of the structure including the second surface.

Abstract: A dual-polarized antenna array is disclosed. The antenna array includes a plurality of self supporting, electrically conductive members. Tapered elements of neighboring electrically conductive members define tapered slots that form part of radiating structures. The radiating structures additionally include a slot line in communication with the tapered slot. A back cavity can be included as part of a BALUN structure that is integral to an electrically conductive member.

Abstract: A dual-polarized antenna array is disclosed. The antenna array includes a plurality of self supporting, electrically conductive members. Tapered elements of neighboring electrically conductive members define tapered slots that form part of radiating structures. The radiating structures additionally include a slot line in communication with the tapered slot. A back cavity can be included as part of a BALUN structure that is integral to an electrically conductive member.