Device, system, and method of semi-Doherty outphasing...

Details Device, system, and method of semi-Doherty outphasing... Device, system, and method of semi-Doherty outphasing...

2008-01-01

2009-12-08

Mottola, Steven J (Department: 2817)

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

Reexamination Certificate

active

07629844

ABSTRACT:
Device, system, and method of semi-Doherty outphasing amplification. For example, an apparatus includes: a first circuit path comprising a first switching amplifier connected in parallel through a first quarter-wave transmission line to a second switching amplifier; and a second circuit path comprising a third switching amplifier connected in parallel through a second quarter-wave transmission line to a fourth switching amplifier, wherein the first circuit path is connected to a circuit node through a third quarter-wave transmission line, and wherein the second circuit path is connected to said circuit node through a fourth quarter-wave transmission line.

REFERENCES:
patent: 4335363 (1982-06-01), Bowers
patent: 6311046 (2001-10-01), Dent
patent: 6472934 (2002-10-01), Pehlke
patent: 7262656 (2007-08-01), Shiikuma

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