Method and apparatus for an improved power amplifier

Details Method and apparatus for an improved power amplifier Method and apparatus for an improved power amplifier

2011-08-16

2011-08-16

Shingleton, Michael B (Department: 2815)

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

C330S12400D

Reexamination Certificate

active

07999613

ABSTRACT:
An amplifier system is provided that has a first balun with an input and an output, and a second balun with an input and an output. A first set of amplifiers is coupled in series and to the output of the first balun. A second set of amplifiers is coupled in series and to the output of the second balun. The first and second sets of amplifiers are in series or parallel. A load impedance of the first and second sets of amplifiers does not substantially change at an output of any amplifier that is switched on when another amplifier is switched off.

REFERENCES:
patent: 4598252 (1986-07-01), Andricos
patent: 5256987 (1993-10-01), Kibayashi et al.
patent: 6535090 (2003-03-01), Matsuzuka et al.
patent: 2003/0048132 (2003-03-01), Kagaya et al.
patent: 2003/0197574 (2003-10-01), Ishida et al.
patent: 2003/0222709 (2003-12-01), Kim
patent: 1 331 689 (2003-07-01), None
patent: WO 2004/114516 (2004-12-01), None

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