Mixer capable of improving signal quality

Details Mixer capable of improving signal quality Mixer capable of improving signal quality

2011-06-07

2011-06-07

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific input to output function

Combining of plural signals

C455S326000, C327S357000

Reexamination Certificate

active

07956666

ABSTRACT:
A mixer includes a transduction circuit, a first and a second switch circuit, and a first and a second load circuit. The transconductor circuit is for generating a differential current signal according to a differential voltage signal. The first switch circuit and the first load circuit are connected in series, and the first switch circuit is used to regulate the differential current signal in response to a first oscillator signal. The second switch circuit and a second load circuit are connected in series, and the second switch circuit is used to regulate the differential current signal in response to a second oscillator signal. The first load circuit and the second load circuit are connected at a common node to reduce harmonic interferences.

REFERENCES:
patent: 7457606 (2008-11-01), Kim
patent: 7477888 (2009-01-01), Behzad
patent: 7514981 (2009-04-01), Yang et al.
patent: 7529529 (2009-05-01), Taylor
patent: 7554381 (2009-06-01), Belot et al.

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