Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2008-09-17
2009-12-15
Pascal, Robert (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S257000
Reexamination Certificate
active
07633342
ABSTRACT:
A RF variable gain amplifier with an extended linear tuning range is disclosed. The variable gain amplifier employs a wide swing cascode mirror formed by two cascode transistors and two gain transistors. The two cascode transistors track each others so are the two gain transistor. The gain transistors operate on the saturation region.
REFERENCES:
patent: 7057457 (2006-06-01), Irvine et al.
patent: 7109796 (2006-09-01), Heigelmayer et al.
Chang Chin-chi
Fong Neric
Shin Didmin
Nguyen Hieu P
Pascal Robert
VIA Technologies Inc.
Wang Li K.
Wang Law Firm, Inc.
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