Techniques for passive subharmonic mixing

Details Techniques for passive subharmonic mixing Techniques for passive subharmonic mixing

2007-06-15

2010-02-02

Vo, Nguyen (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S333000

Reexamination Certificate

active

07657246

ABSTRACT:
Particular embodiments of mixer designs permit greater integration on standard chips with an improvement in power and linearity to enable low-power, high-performance reception. Some embodiments feature a method of frequency conversion using at least two stages of switches to mix an input signal with reference signals. The method involves mixing a differential input signal with a first differential reference signal through a first stage of switches, generating from the first stage of switches a first frequency converted differential signal, and mixing the first frequency converted differential signal with a second differential reference signal through a second stage of switches. The method includes generating from the second stage of switches a second frequency converted differential signal. The first differential reference signal can be phase shifted from the second differential reference signal and can have a different frequency. The mixer designs can have multiple stages of switches in a low-supply voltage design.

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