Patent ID: 9503028
Filing Date: 2016-11-22
CPC Classification: H03F

Claim Text:
1. A three-way sequential power amplifier (SPA), comprising: an input network configured to receive an input signal, wherein the input signal is a wideband radio frequency (RF) signal with time varying amplitude; a main amplifier; a first peak amplifier; a second peak amplifier; and an output network connected to outputs of the main amplifier, the first peak amplifier and the second peak amplifier, and wherein outputs of the input network comprise: a wideband output signal that is an inphase combination of the outputs from the main amplifier, the first peak amplifier, and the second peak amplifier, and a first coupled port having the antiphase combination of outputs of the main amplifier and the first peak amplifier, and a second coupled port having the antiphase combination of outputs from the main amplifier, the first peak amplifier and the second peak amplifier.