Patent ID: 6255906
Filing Date: 2001-07-03
Classification: H03F,H03M

Abstract:
A power amplifier that amplifies an electrical signal, the electrical signal having a magnitude that traverses a first path within the power amplifier to an antenna and a phase that traverses a second path within the power amplifier to the antenna, the power amplifier comprising:a plurality of power amplifiers;a power supply that switches on at least one power amplifier within the plurality of power amplifiers;a logic circuitry coupled to the power supply that directs the switching on of the at least one power amplifier within the plurality of power amplifiers;a time delay compensation circuitry that substantially minimizes any time delay mismatch between the first path and the second path within the power amplifier;a pre-distortion circuitry that substantially compensates for any impedance mismatch created by any changes in the magnitude; anda look up table that stores a gain profile and a phase profile of at least one power amplifier of the plurality of power amplifiers.