Zhifan Zhang
Development of linear and highly efficient GaN power amplifiers for 5G applications.
Rel. Anna Piacibello, Vittorio Camarchia. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Elettronica (Electronic Engineering), 2022
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Abstract: |
This thesis presents the design strategy, implementation and experimental results of a hybrid ClassAB amplifier. The applied design strategy consists in optimizing simultaneously the efficiency and linearity of a single-device class-AB power amplifier, while reaching given minimum output power and gain requirements. The simultaneous selection of optimum source and load terminations that provide the best trade-off among all of the requirements is described, and the synthesis of the matching networks is then presented. Based on the optimized design, a prototype is developed based on a 6 W packaged GaN device around 3.5 GHz, manufactured and measured. The amplifier achieves measured output power higher than 38 dBm with associated gain higher than 12 dB and saturated power-added efficiency in excess of 73% in a single-tone test at 3.25 GHz, while providing a 33% power-added efficiency and -30 dBc inter-modulation distortion in the 20 MHz two-tone test. |
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Relators: | Anna Piacibello, Vittorio Camarchia |
Academic year: | 2022/23 |
Publication type: | Electronic |
Number of Pages: | 64 |
Subjects: | |
Corso di laurea: | Corso di laurea magistrale in Ingegneria Elettronica (Electronic Engineering) |
Classe di laurea: | New organization > Master science > LM-29 - ELECTRONIC ENGINEERING |
Aziende collaboratrici: | UNSPECIFIED |
URI: | http://webthesis.biblio.polito.it/id/eprint/25494 |
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