Modified doherty amplifier

Details Modified doherty amplifier Modified doherty amplifier

2007-07-24

2007-07-24

Nguyen, Patricia (Department: 2817)

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

C330S295000

Reexamination Certificate

active

11294742

ABSTRACT:
Systems and methods are provided for efficient amplification of a signal utilizing a modified Doherty amplifier system. A modified Doherty amplifier system includes a nonlinear main amplifier and a nonlinear auxiliary amplifier. An impedance-inverting network separates the main amplifier from an associated load. A second quarter wave transmission line separates the auxiliary amplifier from an associated signal source. The signal source has an associated minimum signal power, such that the signal power never drops below a predetermined percentage of a peak signal power.

REFERENCES:
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patent: 1592126 (2005-11-01), None
patent: 02054589 (2002-07-01), None
patent: 02095933 (2002-11-01), None
European Search Report EP 06 02 5033.

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