This work presents a performance improvement technique for supply-modulated (SM) power amplifiers (PAs). Differently from the typical solutions, the SM PA is treated as a double-input nonlinear dynamic device, for which a dynamic supply shaping function and an RF digital predistorter are jointly identified by means of a gradient-based multi-objective optimization (MOO) technique. Simulation-based tests show that the MOO-based optimal inputs can greatly enhance the SM PA effectively exploring, in an automatic way, the best compromise between linearity and efficiency.
Mengozzi M., Gibiino G.P., Angelotti A.M., Florian C., Santarelli A. (2020). Supply-Modulated PA Performance Enhancement by Joint Optimization of RF Input and Supply Control. Institute of Electrical and Electronics Engineers Inc. [10.1109/APMC47863.2020.9331630].
Supply-Modulated PA Performance Enhancement by Joint Optimization of RF Input and Supply Control
Mengozzi M.;Gibiino G. P.;Angelotti A. M.;Florian C.;Santarelli A.
2020
Abstract
This work presents a performance improvement technique for supply-modulated (SM) power amplifiers (PAs). Differently from the typical solutions, the SM PA is treated as a double-input nonlinear dynamic device, for which a dynamic supply shaping function and an RF digital predistorter are jointly identified by means of a gradient-based multi-objective optimization (MOO) technique. Simulation-based tests show that the MOO-based optimal inputs can greatly enhance the SM PA effectively exploring, in an automatic way, the best compromise between linearity and efficiency.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
