Communications: radio wave antennas – Antennas – Wave guide type
Reexamination Certificate
2006-04-11
2006-04-11
Phan, Tho (Department: 2821)
Communications: radio wave antennas
Antennas
Wave guide type
C343S846000
Reexamination Certificate
active
07027002
ABSTRACT:
Wideband antennas with omnidirectional coverage have both military and commercial applications. In one embodiment, the Planar Inverted Cone Antenna (PICA) is composed of a single flat element vertically mounted above a ground plane. A geometry of Planar Inverted Cone Antenna (PICA) is based on the conventional circular-disc antenna with trimmed top part having the shape of a planar-inverted cone. in a second embodiment, the Fourpoint antenna also provides balanced impedance over the operating band and has useful radiation patterns and dual polarization over its operating frequency.
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Stutzman Warren L.
Suh Seong-Youn
Phan Tho
Virginia Tech Intellectual Properties Inc.
Whitham Curtis & Christofferson, PC
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