Mixer constant linear range biasing apparatus and method

Details Mixer constant linear range biasing apparatus and method Mixer constant linear range biasing apparatus and method

2006-12-06

2010-02-02

Anderson, Matthew D (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S323000, C455S332000, C455S330000, C455S326000, C455S293000

Reexamination Certificate

active

07657247

ABSTRACT:
A Gilbert cell mixer for a wireless transceiver includes a first stage that performs voltage to current conversions and that includes first and second transistors that are operated in a saturation region and third and fourth transistors that are operated in a triode region. A second stage communicates with the first stage and that performs frequency conversion. A biasing circuit communicates with the first stage to maintain a substantially constant input linear range over temperature and process variations.

REFERENCES:
patent: 5523717 (1996-06-01), Kimura
patent: 5589791 (1996-12-01), Gilbert
patent: 5886547 (1999-03-01), Durec et al.
patent: 6018270 (2000-01-01), Stuebing et al.
patent: 6028478 (2000-02-01), Seremeta et al.
patent: 6054889 (2000-04-01), Kobayashi
patent: 6122497 (2000-09-01), Gilbert
patent: 6138000 (2000-10-01), Navid et al.
patent: 6345178 (2002-02-01), Haapala
patent: 6542019 (2003-04-01), Lim et al.
patent: 2001/0041548 (2001-11-01), Bult et al.
patent: 2003/0027531 (2003-02-01), Malhi et al.
patent: 1176713 (2002-01-01), None
patent: 1187310 (2002-03-01), None
Tanaka, S. et al. “A Linearization Technique for CMOS RF Power Amplifiers”, 1997 Symposium on VLSI Circuits Digest of Technical Papers, pp. 93-94.
U.S. Appl. No. 10/292,087, filed Nov. 11, 2002, Tsai et al.

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