Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2005-12-29
2008-09-16
Owens, Douglas W. (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S752000
Reexamination Certificate
active
07425921
ABSTRACT:
A broadband antenna system includes a ground plane, a metal plate parallel to the ground plane, and constituting a capacitance load against the ground plane, and a radiation structure connected perpendicularly to the ground plane and the metal plate. The radiation structure includes a feed conductor to supply an electric signal, a short-circuit stub to transfer the supplied electric signal to the ground plane, a conducting bridge to interconnect the feed conductor and the short-circuit stub, which is separated from the metal plate, and a radiating conductor connected to the ground plane the metal plate, and coupled to the supplied electric signal to thereby radiate electromagnetic waves.
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S. Lim, et al.: “Electrically small antenna for maximizing transmission into HF ground waves” Electronics Letters, IEE STEVENAGE, GB, vol. 40, No. 22, Oct. 28, 2004, pp. 1388-1389, ISSN: 0013-5194.
Karacsony Robert
Owens Douglas W.
Sughrue & Mion, PLLC
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