Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – Combining of plural signals
Reexamination Certificate
2006-10-24
2008-11-11
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific input to output function
Combining of plural signals
C327S359000
Reexamination Certificate
active
07449934
ABSTRACT:
Provided is a mixer for use in a direct conversion receiver. The mixer includes Field Effect Transistors (FETs), a current source (IBias), two load resistors (RLoad), another FET, and two inductors L1and L2. The FET M21constitutes a current bleeding circuitry and the other components except for the two inductors L1and L2constitute a so-called Gilbert cell mixer.
REFERENCES:
patent: 6947720 (2005-09-01), Razavi et al.
patent: 7286811 (2007-10-01), Kral
patent: 7315192 (2008-01-01), Chiu et al.
patent: 2001/0021645 (2001-09-01), Ugajin et al.
patent: 2003/0045263 (2003-03-01), Wakayama et al.
Zhang et al., “A 900MHz CMOS Balanced Harmonic Mixer for Direct Conversion Receivers,” IEEE Radio and Wireless Conference, 2000. pp. 219-222, Sep. 2000.
Darabi et al., “A Noise Cancellation Technique in Active-RF CMOS mixers.” ISSCC, session 29, pp. 544-545, 2005.
Sjoland et al., “A Merged CMOS LNA and Mixer for a WCDMA Receiver,” IEEE J. Solid State Circuits, vol. 38, No. 6, pp. 1045-1050, Jun. 2003.
Montagna et al., “A 72mW CMOS 802.11a Direct Conversion Receiver with 3.5dB NF and 200kHz l/f Noise Corner,” Symposium on VLSI Circuits Dig. Oct., 2004.
Zhou et al., “A CMOS Passive Mixer with Low Flicker Noise for Low-Power Direct-Conversion Receiver,” IEEE J. Solid State Circuits, vol. 40, No. 5, pp. 1084-1093, May 2005.
Laskar Joy
Lee Chang-Ho
Park Jin-Sung
Woo Sang-Hyun
Georgia Tech Research Corporation
McNeely Bodendorf LLP
Samsung Electronics Co,. Ltd.
Wells Kenneth B.
LandOfFree
CMOS mixer for use in direct conversion receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with CMOS mixer for use in direct conversion receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CMOS mixer for use in direct conversion receiver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4025648