Signal downconverter

Details Signal downconverter Signal downconverter

2006-08-30

2009-12-01

Nguyen, Tony T (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S226100, C455S323000

Reexamination Certificate

active

07627303

ABSTRACT:
A signal downconverter having a pair of passive double sideband mixers for receiving quadrature RF signals and mixing the same with local oscillator driving signals to provide mixed differential signals. The mixed differential signals are fed to a differential difference feedback amplifier high frequency ripples are eliminated and finally providing a down converted output signal.

REFERENCES:
patent: 6615027 (2003-09-01), Sahota et al.
patent: 7027793 (2006-04-01), Gard et al.

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