High linearity passive mixer and associated LO buffer

Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – Combining of plural signals

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C327S355000, C455S326000, C455S333000

Reexamination Certificate

active

06989705

ABSTRACT:
An RF communications system includes a transmit node for transmitting an RF information signal and a receive node for receiving the transmitted RF information signal. The receive node includes a passive mixer coupled to an amplifier for producing an IF or baseband differential mixer output signal as a function of a LO drive signal. The passive mixer having a first plurality of transistors of a first polarity type arranged in a ring configuration and a second plurality of transistors of a second polarity type, wherein each of second plurality of transistors is coupled to one of the first plurality of transistors.

REFERENCES:
patent: 4947062 (1990-08-01), Weiner et al.
patent: 5361409 (1994-11-01), Vice
patent: 5513390 (1996-04-01), Vice
patent: 6057714 (2000-05-01), Andrys et al.
patent: 6133793 (2000-10-01), Lau et al.
patent: 6194947 (2001-02-01), Lee et al.
patent: 6380777 (2002-04-01), Degardin et al.
patent: 6608527 (2003-08-01), Moloudi et al.
patent: 6781445 (2004-08-01), Feldman
patent: 2004/0174202 (2004-09-01), Behzad
patent: 2004/0259519 (2004-12-01), Su
patent: 2005/0073352 (2005-04-01), Behzad
patent: 0 726 646 (1996-08-01), None
Flaviis et al.,X-Band Doubly Balanced Resistive FET Mixer with Very Low Intermodulation, Short Papers, IEEE Transactions on Microwave Theory and Techniques, Feb. 1995, pp. 457-460, vol. 43, No. 2.
Cho Y et al., “A New CMOS Passive Mixer with High Linearity,” Extended Abstracts of the International Conference on Solid State Devices and Materials, Japan Society of Applied Physics, Tokyo, JA, vol. 2001, Sep. 26, 2001, pp. 400-401, XP 001074832.
Muraguchi M et al., “A 1.9 GHz-band Ultra Low Power Consumption Amplifier Chip Set for Personal Communications,” Microwave and Millimeter-Wave Monolithic Curcuits Symposium, 1995. Digest of Papers., IEEE 1995 Orlando, FL May 15-16, 1995, New York, NY May 15, 1995, pp. 145-158, XP 010148470, ISBN: 0-7803-2590-7.
Keng Leong Fong et al, “A 2.4 GHz Monolithic Mixer for Wireless LAN Applications,” Custom Integrated Circuits Conference, 1997, Proceedings of the IEEE 1997 Santa Clara, CA, May 5-8, 1997, New York, NY, IEEE, US, May 5, 1997, pp. 185-188, XP 010235288, ISBN: 0-7803-3669-0.
Jenshan Lin et al., “3V GSM base station RE Receivers Using 0.25/spl mu/m BiCMOS,” IEEE International Solid-State Circuit Conference, Feb. 5, 2001, pp. 416, 417 and 471, XP 010536327.
EP Search Report, European Patent Application No. 04004414.1, Sep. 27, 2004.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

High linearity passive mixer and associated LO buffer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High linearity passive mixer and associated LO buffer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High linearity passive mixer and associated LO buffer will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3600227

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.