High impedance bicone antenna
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United States of America Patent
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-
May 26, 2009
Grant Date -
Sep 6, 2007
app pub date -
Feb 12, 2007
filing date -
Feb 10, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A high impedance bicone antenna system supporting ultra wideband operation. The antenna may comprise a reduced aperture size and reduced half-angles of the conductive cones forming the antenna. Reduction in cone angles may increase the impedance of the cones. An impedance matching mechanism for interfacing to the high impedance bicone may be positioned within one of the cones by a dielectric material. The impedance matching mechanism may be a flat conductive taper functioning as an impedance matching transmission line between an external feed line and the antenna. The conductive taper may function as a center conductor of a coaxial feed mechanism where the inside of the cone around the taper serves as the outside conductor, or return, of the tapered feed. The geometry of the cones may be modified to provide one or more end segments that are substantially cylindrical.
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