Apparatus and method for amplifying signal power in a...

Details Apparatus and method for amplifying signal power in a... Apparatus and method for amplifying signal power in a...

2009-01-08

2011-11-08

Tran, Khai (Department: 2611)

Pulse or digital communications

Pulse width modulation

Reexamination Certificate

active

08054878

ABSTRACT:
A transmitter is provided for amplifying signal power in a communication system. The transmitter includes a single-tone signal generator for generating a single-tone signal; a baseband signal generator for generating a baseband signal; a bias modulator for switching a positive bias signal to a first power amplifier using the baseband signal, and switching a negative bias signal to the second power amplifier using the baseband signal; the first power amplifier for power-amplifying the single-tone signal using the positive bias signal; and the second power amplifier for power-amplifying the single-tone signal using the negative bias signal.

REFERENCES:
patent: 6868128 (2005-03-01), Lane
patent: 7359682 (2008-04-01), Yoon
patent: 2003/0045249 (2003-03-01), Nielsen
patent: 2007/0217559 (2007-09-01), Stott et al.

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