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.
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.. - ELETTRONICO. - 2020-:(2020), pp. 9331630.585-9331630.587. (Intervento presentato al convegno 2020 Asia-Pacific Microwave Conference, APMC 2020 tenutosi a Hong Kong nel 2020) [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.
