System and method for producing an amplified signal using plurality of amplitudes across spectrum

An amplifier distortion reduction system comprising:

• a detection path receives a frequency band of operation;
• and
• processing circuitry receives said frequency band of operation on said detection path and produces a plurality of amplitudes of a frequency spectrum of the frequency band of operation at a particular time or time period and provides adjustments for said frequency band of operation in response to at least one of said plurality of amplitudes where the system further comprises:
• a first splitter receives a signal to be amplified and provides a replica of said signal in said frequency band of operation onto a main signal path and a feed forward path;
• a first amplifier on said main signal path amplifies said signal on said main signal path to produce an amplified signal with distortion on said main signal path;
• a first coupler couples a replica of said amplified signal with said distortion onto a coupling path;
• a second coupler combines said signal on said feed forward path with said replica of said amplified signal and said distortion on said coupling path to produce said distortion on said feed forward path;
• a first detection path said frequency band of operation from a first detection point after said second coupler on said feed forward path;
• said processing circuitry providing gain and/or phase adjustments based on said at least one of said amplitudes over said frequency band of operation at a first detection point;
• a third coupler combines said distortion on said feed forward path with said amplified signal and said distortion on said main signal path to output the amplified signal with reduced distortion on said main signal path;
• a second detection path receives said frequency band of operation at a second detection point after said third coupler;
• said processing circuitry providing gain and/or phase adjustments based on said amplitudes over said frequency band of operation at said second detection point;
• and
• a switch receives said frequency band of operation from said first detection path and said second detection path and switches between said first detection path and said second detection path to provide said frequency of operation from said first detection point and said second detection point to said processing circuitry to make amplitude and/or phase adjustments in response to said amplitudes at said first detection point and said second detection point.