Patent ID: 9716309
Date: 2017-07-25
CPC Classifications: H01Q

Claim:
1. An apparatus, comprising: a disc-shaped conductive substrate; a ring-shaped conductive substrate being positioned generally parallel with respect to the disc-shaped conductive substrate, the ring-shaped conductive substrate having an outer diameter generally coincides with an outer diameter of the disc-shaped conductive substrate; and a plurality of Balanced Antipodal Vivaldi Antenna (BAVA) elements each positioned perpendicularly between the disc-shaped conductive substrate and the ring-shaped conductive substrate, the plurality of BAVA elements forming a circular antenna array along edges of the disc-shaped conductive substrate and the ring-shaped conductive substrate, the plurality of BAVA elements defining an electric field plane (E-plane) of the circular antenna array, the E-plane of the circular antenna array being parallel with the disc-shaped conductive substrate and the ring-shaped conductive substrate, and the disc-shaped conductive substrate and the ring-shaped conductive substrate jointly form a parallel plate waveguide for the circular antenna array.