Harmonic rejection mixer and method of operation

Details Harmonic rejection mixer and method of operation Harmonic rejection mixer and method of operation

2006-10-31

2006-10-31

Nguyen, Duc M. (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

C455S318000, C455S323000, C455S326000, C455S333000

Reexamination Certificate

active

07130604

ABSTRACT:
A radio frequency (RF) demodulation circuit comprising a harmonic rejection mixing stage capable of receiving and mixing an incoming radio frequency (RF) signal having a frequency RF and a reference local oscillator (LO) signal having a frequency LO and generating an output signal in which out-of-band harmonic signals are suppressed. The harmonic rejection mixing stage comprises 1) a multiphase local oscillator (LO) generator for receiving the reference LO signal and generating M phase-shifted local oscillator signals having frequencies LO and 2) M mixers, each of the M mixers receiving the incoming radio frequency signal and one of the M phase-shifted local oscillator signals. Each of the M mixers generates a subcomponent signal. The subcomponent signals are then scaled and combined to produce the output signal.

REFERENCES:
patent: 5303417 (1994-04-01), Laws
patent: 5343171 (1994-08-01), Fox et al.
patent: 5642071 (1997-06-01), Sevenhans et al.
patent: 5787126 (1998-07-01), Itoh et al.
patent: 5862466 (1999-01-01), Erickson
patent: 5901349 (1999-05-01), Guegnaud et al.
patent: 6035186 (2000-03-01), Moore et al.
patent: 6073001 (2000-06-01), Sokoler
patent: 6144236 (2000-11-01), Vice et al.
patent: 6144845 (2000-11-01), Durec
patent: 6144846 (2000-11-01), Durec
patent: 6208875 (2001-03-01), Damgaard et al.
patent: 6324388 (2001-11-01), Souetinov
patent: 6405022 (2002-06-01), Roberts et al.
patent: 6542724 (2003-04-01), Copeland et al.
patent: 6725029 (2004-04-01), Allen
patent: 6959179 (2005-10-01), Wong et al.

Affiliated with

Also associated with

Rating

Harmonic rejection mixer and method of operation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Harmonic rejection mixer and method of operation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Harmonic rejection mixer and method of operation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3717837