Analysis and realisation of the LINC transmitter using the combined analogue locked loop universal modulator (CALLUM)

A novel modulator and transmitter subsystem is presented which provides amplification through RF synthesis. The technique has the potential for 100% dc to RF conversion efficiency whilst providing a highly linear output. Based on the LINC concept, the modulator employs feedback around the entire transmitter subsystem to maintain linearity and efficiency with practical component tolerances.<
>