Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Reexamination Certificate
2008-04-04
2010-12-28
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
Reexamination Certificate
active
07859459
ABSTRACT:
A phased array receiver includes a plurality of receive paths having a plurality of downconverters, a plurality of digitally controlled local oscillators associated with the plurality of receive paths, and a combiner. In response to a plurality of digital phase control signals, the plurality of digitally controlled local oscillators controls phases of a plurality of local oscillator signals generated by the plurality of digitally controlled local oscillators. The phases of the plurality of local oscillator signals are introduced as phase shifts in a plurality of intermediate frequency signals produced by the plurality of downconverters. The plurality of digitally controlled local oscillators is configured to respond to changes in digital values of the plurality of digital phase control signals to achieve a desired phase relationship among the phases of the intermediate frequency signals.
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English translation of JP 3212789 B.
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Mull Fred H
Panasonic Corporation
Tarcza Thomas H
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