Communications: radio wave antennas – Antennas – Antenna with parasitic director
Reexamination Certificate
2007-05-29
2007-05-29
Wong, Don (Department: 2163)
Communications: radio wave antennas
Antennas
Antenna with parasitic director
C343S7000MS, C343S810000, C343S834000
Reexamination Certificate
active
11190745
ABSTRACT:
A smart antenna includes a ground plane, an active antenna element adjacent the ground plane, and passive antenna elements adjacent the ground plane. The passive antenna elements have different sizes for defining different resonant frequencies for increasing a bandwidth of the smart antenna. Dielectric layers having different dielectric constants may also be used for coating the passive antenna elements for defining different resonant frequencies. Impedance elements are connected to the ground plane and are selectively connectable to the passive antenna elements for antenna beam steering.
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Chiang Bing A.
Lynch Michael J.
Richeson, legal representative Dee M.
Wood Douglas H.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Ho Binh Van
InterDigital Technology Corporation
Wong Don
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