Low noise amplifier and related method

Details Low noise amplifier and related method Low noise amplifier and related method

2006-08-01

2006-08-01

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including frequency-responsive means in the signal...

C330S129000, C330S311000

Reexamination Certificate

active

07084707

ABSTRACT:
A low noise amplifier (LNA) for filtering an input signal to generate an output signal. The low noise amplifier includes a switched loading circuit having a plurality of loading units, each of the loading units determining a corresponding center frequency of the low noise amplifier. The switched loading circuit selectively enables a loading unit having the desired corresponding center frequency. At least one converters coupled to the switched loading circuit converts a voltage of the input signal into a loading current and passes the loading current through the enabled loading unit to generate the output signal.

REFERENCES:
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patent: 6215355 (2001-04-01), Meck et al.
patent: 6232841 (2001-05-01), Bartlett et al.
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patent: 6806777 (2004-10-01), Franca-Neto
patent: 6825722 (2004-11-01), Segawa
patent: 6940358 (2005-09-01), Meacham
patent: 6963241 (2005-11-01), Lindell
Behzad Razavi, Low-Noise Amplifiers and Mixers, RF Microelectronics, Nov. 06, 1997, pp. 166-205, Prentice Hall PTR., NJ.

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