Patent ID: 8829993
Filing Date: 2014-09-09
Classification: H03F

Abstract:
1. A system having an input and an RF output, the system comprising: one or more RF amplifiers each having an RF input, an RF output, and a power supply input; a voltage control unit coupled to provide a power supply voltage to the power supply input of at least one of the one or more RF amplifiers wherein said voltage control unit dynamically selects the power supply voltage from among different inputs or levels based in part upon one or more signal characteristics of a signal to be transmitted; and a linearization system coupled to each of the at least one RF amplifiers coupled to said voltage control unit, said linearization system for improving the linearity of the system in which the RF input to at least one of said one or more RF amplifier(s) is predistorted, and wherein the applied predistortion is indexed, at least in part, by the selection of power supply level.