Offset correction for passive mixers

Details Offset correction for passive mixers Offset correction for passive mixers

2007-09-28

2011-10-25

Nguyen, Duc M (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

C455S326000, C455S333000, C455S226100, C327S538000, C327S541000

Reexamination Certificate

active

08045944

ABSTRACT:
A downconversion mixer includes a configurable gate or bulk bias voltage to allow calibration and correction of device offsets. Calibration may be performed on the configurable bias voltages to minimize IM2 distortion in the mixer. The techniques have minimal impact on voltage headroom, impose no requirement for a signal path to be phase-matched with a calibration path, and are particularly well-suited for passive mixers.

REFERENCES:
patent: 5448197 (1995-09-01), Sagawa et al.
patent: 5726597 (1998-03-01), Petty et al.
patent: 6255889 (2001-07-01), Branson
patent: 6343211 (2002-01-01), Thodesen et al.
patent: 6433647 (2002-08-01), Filoramo et al.
patent: 6639446 (2003-10-01), Komurasaki et al.
patent: 6665528 (2003-12-01), McNamara et al.
patent: 6871057 (2005-03-01), Ugajin et al.
patent: 7102411 (2006-09-01), Behzad
patent: 7554380 (2009-06-01), Embabi et al.
patent: 7676213 (2010-03-01), Taylor et al.
patent: 2002/0113650 (2002-08-01), Kim et al.
patent: 2002/0160738 (2002-10-01), Allott et al.
patent: 2003/0169089 (2003-09-01), Manku et al.
patent: 2007/0111694 (2007-05-01), Lin
patent: 2375438 (2003-09-01), None
patent: 20020067331 (2002-08-01), None
International Search Report and Written Opinion—PCT/US2008/076087, International Search Authority—European Patent Office—Mar. 6, 2009.
Kim B et al: “CMOS RF Amplifier and Mixer Circuits Utilizing Complementary Characteristics of Parallel Combined NMOS and PMOS Devices” IEEE Transactions on Microwave Theory and Techniques, IEEE Service Center, Piscataway, NJ, US, vol. 53, No. 5, May 1, 2005, pp. 1662-1671, XP011131609 ISSN: 0018-9480 p. 1666, col. 2, line 32-p. 1669, col. 2, line 23; figure 14.
Woonyun Kim et al: “IP2 calibrator using common mode feedback circuitry” Solid-State Circuits Conference, 2005. ESSCIRC 2005. Proceedings of the 31st European, IEEE, Piscataway, NJ, USA, Sep. 12, 2005, pp. 231-234, XP010854945 ISBN: 978-0-7803-9205-2 p. 232, col. 1, line 10-p. 233, col. 1, line 22; figures 2,5.
Translation of Office Action in Korean application 10-2010-7008072 corresponding to U.S. Appl. No. 11/864,310, citing US20070132500 and KR20020067331 dated Apr. 29, 2011.

Affiliated with

Also associated with

Rating

Offset correction for passive mixers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Offset correction for passive mixers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Offset correction for passive mixers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4253607