Joint circuit-level and digital predistortion strategies for enhancing the linearity-efficiency tradeoff of Doherty power amplifiers
| Autor: | Hamed Golestaneh, Slim Boumaiza |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
business.industry Amplifier Electrical engineering Linearity 020206 networking & telecommunications 02 engineering and technology Residual Predistortion Power (physics) Distortion Broadband 0202 electrical engineering electronic engineering information engineering Electronic engineering business 5G |
| Zdroj: | 2016 IEEE MTT-S International Microwave Symposium (IMS). |
| Popis: | This paper begins by discussing the main circuit-level sources of distortion exhibited by multiband and broadband Doherty power amplifiers (DPAs). It also highlights solutions for minimizing their unwanted effects on DPA performance when driven with carrier aggregated signals. Subsequently, it describes the digital predistortion (DPD) system needed to mitigate the residual distortions and improve the achievable linearity-efficiency tradeoff. Finally, the challenges to applying the DPD technique to linearizing 5G DPAs will be surveyed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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