Quadrature mixer circuit including three-input local mixers

Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C455S315000, C455S318000, C455S324000, C327S119000

Reexamination Certificate

active

07039383

ABSTRACT:
In a quadrature mixer circuit for receiving a radio frequency signal to generate first and second quadrature output signals, a first three-input mixer receives the radio frequency signal, a first local signal having a first frequency and a second local signal having a second frequency to generate the first quadrature output signal, and a second three-input mixer receives the radio frequency signal, the first local signal and the second local signal to generate the second quadrature output signal. The second local signal received by the first three-input mixer and the second local signal received by the second three-input mixer being out of phase by π/2 from each other.

REFERENCES:
patent: 5303417 (1994-04-01), Laws
patent: 5448772 (1995-09-01), Grandfield
patent: 5761615 (1998-06-01), Jaffee
patent: 5995819 (1999-11-01), Yamaji et al.
patent: 6031409 (2000-02-01), Kimura
patent: 6041223 (2000-03-01), Thomas
patent: 6144845 (2000-11-01), Durec
patent: 6144846 (2000-11-01), Durec
patent: 6370372 (2002-04-01), Molnar et al.
patent: 6396330 (2002-05-01), Fujii
patent: 6411801 (2002-06-01), Kim et al.
patent: 6531920 (2003-03-01), Ishihara
patent: 2002/0049043 (2002-04-01), Gamliel
patent: 2003/0078017 (2003-04-01), Casagrande
patent: 58-187005 (1983-01-01), None
patent: 07-129697 (1995-05-01), None
patent: 09-205382 (1997-08-01), None
patent: 10-105632 (1998-04-01), None
patent: 10-105632 (1998-04-01), None
patent: 10-242880 (1998-09-01), None
patent: 2001-520815 (2001-10-01), None
patent: 2003-188649 (2003-07-01), None
patent: 2004-518315 (2004-06-01), None
patent: WO 02/27954 (2002-04-01), None
Yamaji et al., “An I/Q Active Balanced Harmonic Mixer with IM2 Cancelers and a 45° Phase Shifter”,IEEE Journal of Solid-State Circuits, Dec. 1998, pp. 2240-2246, vol. 33, No. 12, IEEE.
Keng Leong Fong and Robert G. Meyer, “Monolithic RF Active Mixer Design,” IEEE Transactions on Circuits and Systems-II: Analog Digital Signal Processing, vol. 46, No. 3, Mar. 1999.

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

Quadrature mixer circuit including three-input local 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 Quadrature mixer circuit including three-input local mixers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quadrature mixer circuit including three-input local mixers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3604035

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