Receiver

Details Receiver Receiver

2005-03-01

2005-03-01

Nguyen, Simon (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S313000, C455S324000

Reexamination Certificate

active

06862442

ABSTRACT:
A receiver includes a phased array antenna and a demodulator. The phased array antenna includes first and second antenna elements and a phase shifter for shifting the phase of a signal received by the first antenna element by a predetermined amount. The demodulator includes a first junction circuit which receives a local signal and a signal output from the phase shifter and which generates a plurality of signals having a phase difference; a second junction circuit which receives a local signal and a signal output from the second antenna element and which generates a plurality of signals having a phase difference; signal combiners for combining corresponding signals output from the two junction circuits; power detectors for detecting the signal levels of the output signals of the signal combiners; and a converter for converting the outputs signals of the power detectors so as to obtain IQ signals.

REFERENCES:
patent: 5585803 (1996-12-01), Miura et al.
patent: 6023615 (2000-02-01), Bruckert et al.
patent: 6058318 (2000-05-01), Kobayakawa et al.
patent: 6535721 (2003-03-01), Burke et al.
patent: 6546236 (2003-04-01), Canada et al.
patent: 0 805 561 (1997-11-01), None

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