High efficiency doherty amplifier with a segmented main...

Details High efficiency doherty amplifier with a segmented main... High efficiency doherty amplifier with a segmented main...

2007-11-13

2007-11-13

Pascal, Robert (Department: 2817)

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

C330S295000

Reexamination Certificate

active

10993408

ABSTRACT:
A Doherty amplifier that includes a main amplifier device and an auxiliary amplifier device. The main amplifier device includes a plurality of independently controllable amplifier segments. The system further includes a coupler for coupling an input signal to each of the main amplifier device and the auxiliary amplifier device. The system further includes an impedance inverter for power combining an output signal of the main amplifier device with an output signal of the auxiliary amplifier device.

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PCT/US05/42094, International Search Report mailed Aug. 17, 2006.

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