Ultra-wideband antenna with excellent design flexibility

A method for forming an ultra wideband antenna comprising:

• forming 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;
• mounting a feeder to the first surface such the feeder extends into at least a portion of the zone, wherein the feeder is configured to supply a signal to the zone;
• and
• mounting a matching element to the second surface, wherein the matching element is configured to couple the feeder to the zone.

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;
• means for supplying a signal to the zone;
• and
• means for coupling the signal to the zone.