Polar signal processor to drive a segmented power amplifier...

Details Polar signal processor to drive a segmented power amplifier... Polar signal processor to drive a segmented power amplifier...

2004-10-22

2011-10-04

Gannon, Levi (Department: 2817)

Modulators

Phase shift keying modulator or quadrature amplitude modulator

C332S145000, C332S146000, C332S151000, C332S152000, C375S308000

Reexamination Certificate

active

08031028

ABSTRACT:
A circuit for providing AM/PM modulation is described. The circuit provides two drive signals which are later combined in a constructive/destructive fashion. The circuit provides AM modulation with a drive signal having a consistent power level modulated to have varying pulse widths in order to provide variable power within each cycle.

REFERENCES:
patent: 4485357 (1984-11-01), Voorman
patent: 4580111 (1986-04-01), Swanson
patent: 7072626 (2006-07-01), Hadjichristos
patent: 7657238 (2010-02-01), Grange
patent: 2004/0038648 (2004-02-01), Matsuura et al.
patent: 2005/0286652 (2005-12-01), MacPhail et al.
patent: WO 00/21191 (2000-04-01), None
patent: WO 02/47249 (2002-06-01), None
patent: WO 2005/020430 (2005-03-01), None

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