Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Reexamination Certificate
2008-07-08
2008-07-08
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
C342S375000, C455S562100
Reexamination Certificate
active
07397425
ABSTRACT:
An electronically steerable antenna system includes a plurality of panels that are coupled together to form an N-sided polygon. Each panel includes a plurality of microstrip conductor patches forming a phased array antenna. In a first embodiment that includes beam steering, each panel can selectively transmit or receive in a direction that is either perpendicular to the panel, or to the left or right of perpendicular, depending upon relative delay line lengths applied to the left and right antennas. A second embodiment omits the beam steering capability for each panel and simply enables only one of the N different panels to be employed for transmitting or receiving a radiofrequency signal in a direction perpendicular to the panel. PIN diodes are preferably used for selecting the panel that is active, and in the first embodiment, for selecting the delay lines used.
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Jiang Yan-Sheng
King Wayne
Ranta Craig Steven
Yin Qin-Ye
Microsoft Corporation
Mull Fred H.
Tarcza Thomas H.
Workman Nydegger
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