Low noise amplifier having improved linearity

Details Low noise amplifier having improved linearity Low noise amplifier having improved linearity

2007-10-29

2010-10-12

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including gain control means

C330S136000

Reexamination Certificate

active

07812672

ABSTRACT:
Embodiments of the present general inventive concept include a low noise amplifier and method with an improved linearity while reducing a noise disadvantage (e.g., increase). One embodiment of a low noise amplifier can include a first transistor to receive an input signal at a control terminal thereof, a second transistor having a first terminal coupled to a second terminal of the first transistor, an envelope detector to output a control signal corresponding to a characteristic of the input signal and an envelope amplifier to amplify the control signal to be applied to a control terminal of the second transistor.

REFERENCES:
patent: 5936464 (1999-08-01), Grondahl
patent: 6717980 (2004-04-01), Rishi
patent: 7164321 (2007-01-01), Behzad
patent: 7321266 (2008-01-01), Chiang

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