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US 7,035,616 B2Granted
Two-stage variable-gain mixer employing shunt feedback
AssigneeInternational Business Machines Corporation
InventorScott K. Reynolds
Life of this patent
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Abstract
A demodulator which includes an active balun circuit and at least one mixer driven by the active balun circuit. The active balun circuit includes a negative shunt feedback arrangement.
Claims15
A demodulator comprising:
- an input arrangement which accepts an input signal;
- an active balun circuit which amplifies the input signal and converts the input signal to differential form;
- at least one mixer;
- said active balun circuit being adapted to drive said at least one mixer;
- said active balun circuit comprising an asymmetrical negative shunt feedback arrangement.
2 more elements
Dependencies are inferred from the claim text.