Emulation of Doherty Amplifiers Using Single- Amplifier Load–Pull Measurements
| Autor: | Dhecha Nopchinda, Koen Buisman, William Hallberg, Christian Fager |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Emulation
Computer science business.industry Amplifier Load pull Electrical engineering 020206 networking & telecommunications 02 engineering and technology Condensed Matter Physics Power (physics) Dynamic loading 0202 electrical engineering electronic engineering information engineering Device under test State (computer science) Electrical and Electronic Engineering business Uhf power amplifiers |
| Zdroj: | IEEE Microwave and Wireless Components Letters. 30:47-49 |
| ISSN: | 1558-1764 1531-1309 |
| DOI: | 10.1109/lmwc.2019.2955065 |
| Popis: | A measurement-based approach for the analysis of Doherty power amplifiers (DPAs) is presented. The DPA behavior is emulated using an active load–pull setup, exciting a single device under test (DUT) in either of two states, corresponding to the main and auxiliary branches in a DPA. The dynamic loading condition in one state is determined from the Doherty combiner parameters and the knowledge of the DUT behavior in the other state. By iterating between these states, the measurements converge to the true behavior of a complete DPA. This method provides measurement-based insights in the dynamic loading conditions and the corresponding individual device performance without having to manufacture the full DPA. The method is demonstrated by emulating and cross-verifying a 2.14-GHz DPA. |
| Databáze: | OpenAIRE |
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