Patent ID: 8013801

Claim:
An ultra wideband antenna comprising: a radiating element comprising a first surface, a second surface, and a zone formed at least in part by the first surface and the second surface, wherein the first surface is positioned opposite of the second surface relative to a plane that is perpendicular to a longitudinal axis of the antenna and that contains a horizontal axis of the antenna, wherein the first surface and the second surface have a symmetry of revolution about the longitudinal axis of the antenna, and wherein the first surface and the second surface have a profile and dimensions configured to provide a substantially constant gain over a predetermined frequency band, and wherein the first surface is at least one of concave and convex and the second surface is at least one of concave and convex; a feeder that extends into at least a portion of the zone and that is configured to supply a signal to the zone; and a matching element configured to couple the feeder to the zone.