Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2008-07-22
2008-07-22
Wimer, Michael C (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
C343S833000, C343S834000
Reexamination Certificate
active
07403160
ABSTRACT:
A low profile smart antenna includes an active antenna element carried by a dielectric substrate, and active antenna element has a T-shape. Passive antenna elements are carried by the dielectric substrate, and they have an inverted L-shaped portion laterally adjacent the active antenna element. Impedance elements are selectively connectable to the passive antenna elements for antenna beam steering.
REFERENCES:
patent: 3846799 (1974-11-01), Gueguen
patent: 5905473 (1999-05-01), Taenzer
patent: 6337668 (2002-01-01), Ito et al.
patent: 6369770 (2002-04-01), Gothard et al.
patent: 6392599 (2002-05-01), Ganeshmoorthy et al.
patent: 6476773 (2002-11-01), Palmer et al.
patent: 6480157 (2002-11-01), Palmer et al.
patent: 6753826 (2004-06-01), Chiang et al.
patent: 6876331 (2005-04-01), Chiang et al.
patent: 6972729 (2005-12-01), Wang
patent: 2004/0046694 (2004-03-01), Chiang et al.
patent: 56012102 (1981-02-01), None
patent: 03/065500 (2003-08-01), None
patent: 2004/025778 (2004-03-01), None
Ohira et al., Electronically Steerable Passive Array Radiator Antennas for Low-Cost Analog Adaptive Beamforming, 0-7803-6345-0/00, 2000, IEEE.
Scott et al., Diversity Gain From a Single-Port Adaptive Antenna Using Switched Parasitic Elements Illustrated with a Wire and Monopole Prototype, IEEE Transactions on Antennas and Propagation, vol. 47, No. 6, Jun. 1999.
King, The Theory of Linear Antennas, pp. 622-637, Harvard University Press, Cambridge, Mass., 1956.
Lo et al., Antenna Handbook: Theory, Applications and Design, pp. 21-38, Van Nostrand Reinhold Co., New York, 1988.
Svantesson et al., High-Resolution Direction Finding Using a Switched Parasitic Antenna, Aug. 2001.
Basilio et al., The Dependence of the Input Impedance on Feed Position of Probe and Microstrip Line-Fed Patch Antennas, IEEE Transactions on Antennas and Propagation, vol. 49, No. 1, Jan. 2001, pp. 45-47.
Schlub et al., Switched Parasitic Antenna on a Finite Ground Plane with Conductive Sleeve, IEEE Transactions on Antennas and Propagation, vol. 52, No. 5, May 2004, pp. 1343-1347.
Taguchi et al., Aeronautical Low-Profile YAGI-UDA Antennas, Electronics & Communications In Japan, Part I—Communications, Wiley, Hoboken, New Jersey, vol. 81, No. 12, Dec. 1998, pp. 28-36.
Chiang Bing A.
Kadambi Govind R.
Kishler Mark W.
Liu Thomas
Lynch Michael J.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
InterDigital Technology Corporation
Wimer Michael C
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