Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2011-06-14
2011-06-14
Nguyen, Duc M (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C455S326000, C455S333000, C327S122000
Reexamination Certificate
active
07962114
ABSTRACT:
A sub-harmonic mixer includes a first transistor having a source and a drain and a second transistor having a source connected to the source of the first transistor and a drain connected to the drain of the first transistor. A mixing transistor is configured to be biased in a linear operating region. The mixing transistor includes a drain coupled to the sources of the first transistor and the second transistor. The mixing transistor has its drain driven by a signal at twice a local oscillator (LO) frequency and its gate driven by a radio frequency (RF) signal while the mixing transistor is biased in the linear region such that a process of frequency doubling and mixing are performed simultaneously.
REFERENCES:
patent: 4320536 (1982-03-01), Dietrich
patent: 5319267 (1994-06-01), Kimura
patent: 5751033 (1998-05-01), Miya
patent: 5826183 (1998-10-01), Apel
patent: 5933771 (1999-08-01), Tiller et al.
patent: 6094084 (2000-07-01), Abou-Allam et al.
patent: 6144236 (2000-11-01), Vice et al.
patent: 6239645 (2001-05-01), Tsukahara et al.
patent: 6348830 (2002-02-01), Rebeiz et al.
patent: 6370372 (2002-04-01), Molnar et al.
patent: 6664824 (2003-12-01), Laws
patent: 6774699 (2004-08-01), Lin
patent: 6861891 (2005-03-01), Romano
patent: 6999747 (2006-02-01), Su
patent: 7062247 (2006-06-01), Kovacevic et al.
patent: 2001/0036818 (2001-11-01), Dobrovolny
patent: 2003/0119473 (2003-06-01), Smith et al.
patent: 2004/0063419 (2004-04-01), Molnar et al.
patent: 2004/0121751 (2004-06-01), Shen
patent: 2004/0227559 (2004-11-01), Erba et al.
patent: 2008/0284488 (2008-11-01), Sanduleanu et al.
Bura, P., et. al., “FET mixers for communication satellite transponders,” MTT-S International Microwave Symposium Digest, vol. 76, No. 1, pp. 90-92, Jun. 1976.
Ellinger, F., et. al., “30-40GHz drain-pumped passive-mixer MMIC fabricated on VLSI SOI CMOS technology,” IEEE Trans. on Microw. Theory and Tech., vol. 52, No. 5, pp. 1382-1391, May 2004.
Tsironis, C., et. al., “Dual-gate MESFET mixers,” IEEE Trans. on Microw. Theory and Tech., vol. 32, No. 3, pp. 248-255, Mar. 1984.
Lee, S-Y, et. al., “Analysis and implementation of a CMOS even harmonic mixer with current resuse for heterodyne/direct conversion receivers,” IEEE Trans. On Circuits and Systems-I, vol. 52, No. 9, pp. 1741-1751, Sep. 2005.
Yang, M-S, et. al., “Low power fully differential frequency doubler,” IEE Electronics Letters, vol. 39,No. 19, pp. 1388-1389, Sep. 2003.
Yang, T-Y, et. al., “A 28 GHz sub-harmonic mixer using LO doubler in 0.18μm CMOS technology,” IEEE RFIC Dig. Of Technical Papers, San Francisco, CA, Jun. 12-14, 2006, pp. 239-242.
Garcia Alberto Valdes
Mishra Chinmaya
Reynolds Scott Kevin
Dougherty, Esq. Anne V.
International Business Machines - Corporation
Nguyen Duc M
Tutunjian & Bitetto, P.C.
LandOfFree
Drain-pumped sub-harmonic mixer for millimeter wave... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drain-pumped sub-harmonic mixer for millimeter wave..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drain-pumped sub-harmonic mixer for millimeter wave... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2653353