Wideband antenna system and method

摘要

A wideband antenna including: a tapered elongated cavity defined by a first and second wall, a first proximal end of the cavity having a waveguide attached to an electromagnetic emission source; a second distal end of the cavity being electromagnetically transparent; the first wall having a sectional profile being axially tapered to a point; and the second wall being substantially monotonically increasing, to a first order, in radial diameter in section from the proximal to distal ends.