Apparatus and method for transmitter phase shift compensation

摘要

A transmitter circuit ( 10 ) includes a phase shifter ( 20 ) that receives phase shift compensation and timing data ( 40 ), and an amplifier ( 30 ) that receives a control signal ( 70 ) to initiate an efficiency enhancement technique. The phase shifter ( 20 ) receives the phase shift compensation and timing data ( 40 ), and the amplifier ( 30 ) receives the control signal ( 70 ) at a pre-defined relative time such that the compensation phase shift by the phase shifter ( 20 ) compensates for a pre-determined phase change in the amplifier ( 30 ) to produce an RF output signal ( 80 ) with a reduced predicted phase change.