Device and method for power amplifier noise reduction

Details Device and method for power amplifier noise reduction Device and method for power amplifier noise reduction

2004-11-08

2008-03-25

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including particular biasing arrangement

C330S285000

Reexamination Certificate

active

07348852

ABSTRACT:
A power amplifier for use in wireless communication devices is disclosed that reduces the noise generated at the output of the amplifier in the receive band of the wireless communication device. A resonant circuit is inserted between the base ballast resister and the lumped resister. The resonant frequency of the resonant circuit is adjusted to correspond to the frequency offset between the transmission frequency and the frequency corresponding to the peak noise in the receive band of the communication device.

REFERENCES:
patent: 6665545 (2003-12-01), Raleigh et al.
patent: 6727761 (2004-04-01), Apel
patent: 6970039 (2005-11-01), Griffith et al.
patent: 2005/0253656 (2005-11-01), Kramer et al.

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