Communications: radio wave antennas – Antennas – Antenna with parasitic reflector
Reexamination Certificate
2006-01-24
2006-01-24
Wong, Don (Department: 2821)
Communications: radio wave antennas
Antennas
Antenna with parasitic reflector
C343S833000, C343S835000, C343S836000, C343S837000, C343S839000, C343S840000, C342S367000, C342S368000
Reexamination Certificate
active
06989797
ABSTRACT:
An antenna apparatus, which can increase capacity in a cellular communication system or Wireless Local Area Network (WLAN), such as an 802.11 network, operates in conjunction with a mobile subscriber unit or client station. At least one antenna element is active and located within multiple passive antenna elements. The passive antenna elements are coupled to selectable impedance components for phase control of re-radiated RF signals. Various techniques for determining the phase of each antenna element are supported to enable the antenna apparatus to direct an antenna beam pattern toward a base station or access point with maximum gain, and, consequently, maximum signal-to-noise ratio. By directionally receiving and transmitting signals, multipath fading is greatly reduced as well as intercell interference.
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Chiang Bing
Gainey Kenneth M.
Gothard Griffin K.
Keel, Jr. Alton S.
Proctor, Jr. James A.
Al-Nazer Leith
Hamilton Brook Smith & Reynolds P.C.
IPR Licensing Inc.
Wong Don
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