Patent ID: 7889811
Filing Date: 2011-02-15
Classification: H03F,H04L

Abstract:
1. A digital linear amplification with non-linear components (LINC) transmitter, comprising: a signal component separator that separates a non-constant envelope signal into a first phase data signal and a second phase data signal; a frequency synthesizer that generates a plurality of clock signals, wherein the first phase data signal specifies a first pair of the clock signals and wherein the second phase data signal specifies a second pair of the clock signals; at least one digital delay modulator that generates a first component signal having a first constant envelope and a second component signal having a second constant envelope, wherein the first component signal is generated by dividing and digitally delaying the first pair of clock signals based upon the first phase data signal, and wherein the second component signal is generated by dividing and digitally delaying the second pair of clock signals based upon the second phase data signal; at least one non-linear power amplifier that amplifies the first component signal and the second component signal to generate an amplified first component signal and an amplified second component signal; a power combiner that combines the first amplified component signal and the second amplified component signal to generate an output signal having a non-constant envelope; and a mismatch compensator that monitors the output signal to select at least one offset value, wherein the selected at least one offset value is provided to at least one of the signal component separator for phase adjustment or the non-linear power amplifier for gain adjustment.