Low noise amplifier

Details Low noise amplifier Low noise amplifier

2008-01-08

2008-01-08

Pascal, Robert (Department: 2817)

Amplifiers

Signal feedback

Amplifier in signal feedback path

C330S110000

Reexamination Certificate

active

07317351

ABSTRACT:
A low noise amplifier (LNA) is discussed. In implementations, a LNA may include a feedback section coupled to a transistor. The feedback section may have a resistive portion including a buffer and a resistor. A capacitor may be connected in parallel with the resistor. In additional implementations, an integrated circuit may include a second transistor connected to the drain of the first transistor. A feedback section may be coupled across the first and second transistors. The feedback section may include a buffer, a resistor and a capacitor connected in series, so that the terminal of the buffer is connected to the drain of the second transistor while the terminal of the resistor is connected to a source on the first transistor.

REFERENCES:
patent: 3825854 (1974-07-01), Pichal
patent: 5504456 (1996-04-01), Coleman
patent: 5781068 (1998-07-01), Takita
patent: 6404282 (2002-06-01), Kikuchi et al.
patent: 6580317 (2003-06-01), Oppelt
patent: 6600371 (2003-07-01), Cali
patent: 6646463 (2003-11-01), Hariton
patent: 6838936 (2005-01-01), Oppelt
patent: 2006/0238254 (2006-10-01), Gilbert et al.

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