Abstrakti
In this paper, we provide a novel framework for efficient digital predistortion (DPD) based linearization of active antenna arrays with multiple and mutually different nonlinear power amplifiers. The proposed method builds on the use of a combined feedback signal essentially characterizing the observable nonlinear distortion at the receiving end. The proposed method is validated with extensive over-the-air RF measurements on a 64-element active antenna array transmitter operating at 28 GHz carrier frequency and transmitting a 200 MHz wide 5G New Radio (NR) waveform. The obtained results demonstrate the excellent linearization capabilities of the proposed solution, which allows for a very efficient implementation in practical systems.
Alkuperäiskieli | Englanti |
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Otsikko | Proceedings 2019 IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond |
Kustantaja | IEEE |
Sivumäärä | 3 |
ISBN (elektroninen) | 978-1-7281-3143-6 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 2019 |
OKM-julkaisutyyppi | A4 Artikkeli konferenssijulkaisussa |
Tapahtuma | IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond - Kesto: 15 elok. 2019 → 16 elok. 2019 |
Conference
Conference | IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond |
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Ajanjakso | 15/08/19 → 16/08/19 |
Julkaisufoorumi-taso
- Jufo-taso 1