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EnglishThis 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.
| Titolo: | Supply-Modulated PA Performance Enhancement by Joint Optimization of RF Input and Supply Control | |
| Autore/i: | Mengozzi M.; Gibiino G. P.; Angelotti A. M.; Florian C.; Santarelli A. | |
| Autore/i Unibo: | ||
| Anno: | 2020 | |
| Titolo del libro: | Asia-Pacific Microwave Conference Proceedings, APMC | |
| Pagina iniziale: | 585 | |
| Pagina finale: | 587 | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1109/APMC47863.2020.9331630 | |
| 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. | |
| Data stato definitivo: | 24-feb-2021 | |
| Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |
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