Title | Doherty Amplifier Linearization in Experiments by Digital Injection Methods |
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Authors | Atanasković, A., Males-Ilic, N., Djorić, A. and Budimir, D. |
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Type | Conference paper |
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Abstract | In this paper, the experimental verification of two linearization methods applied on a broadband two-way microstrip Doherty amplifier is performed. The laboratory set-ups are formed to generate the baseband nonlinear linearization signals of the second-order. After being tuned in magnitude and phase in the digital domain the linearization signals modulate the second harmonics of fundamental carrier. In the first method, adequately processed signals are then inserted at the input and output of the main Doherty amplifier transistor, whereas in the second method, they are injected at the outputs of the Doherty main and auxiliary amplifier transistors. The experimental results are obtained for 16QAM and 64QAM digitally modulated signals. |
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Keywords | Doherty amplifier |
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| baseband signal |
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| second harmonic |
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| linearization |
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| experimental verification |
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Year | 2021 |
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Conference | 2021 15th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service (TELSIKS 2021) |
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Publisher | IEEE |
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Accepted author manuscript | File Access Level Open (open metadata and files) |
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Publication dates |
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Published | 22 Nov 2021 |
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Journal citation | pp. 82-85 |
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Book title | TELSIKS 2021: Proceedings of Papers |
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ISBN | 9781665444422 |
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Digital Object Identifier (DOI) | https://doi.org/10.1109/TELSIKS52058.2021.9606416 |
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