Low-noise amplifiers

Details Low-noise amplifiers Low-noise amplifiers

2007-05-14

2009-02-10

Pascal, Robert (Department: 2817)

Amplifiers

Signal feedback

Compensating for inter-electrode impedance

C330S283000

Reexamination Certificate

active

07489192

ABSTRACT:
A low-noise amplifier, that utilizes multiple monolithic transformer magnetic feedback to simultaneously neutralize the gate-drain overlap capacitance of the amplifying transistor and achieve high gain at high frequencies when driving an on-chip capacitance, is shown. The multiple transformer topology permits negative and positive feedback to be applied constructively, allowing for a stable design with adequate gain and large reverse isolation without Noise Figure degradation.

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patent: 6809581 (2004-10-01), Rofougaran et al.
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patent: 7339436 (2008-03-01), Fu et al.
patent: 7355479 (2008-04-01), Van Der Heijden
patent: 2006/0281426 (2006-12-01), Galan

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