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Abstract
This paper describes the design of a wideband Doherty power amplifier for fifth generation mobile network applications in sub-6 GHz frequency bands. The presented symmetric design uses different drain-supply voltages for the main and peaking amplifiers to achieve high efficiency at deep power back-off levels. The advantages and disadvantages over conventional asymmetric designs are discussed focusing on the case of wideband Doherty power amplifiers. A new Doherty com-biner is proposed which equalises the impedance transformation ratio between the back-off and peak power points. Finally, a proof-of-concept prototype is developed which can achieve higher than 50% drain efficiency for power levels between peak output power and 8 dB power back-off, for the frequency range between 3.3 GHz and 3.8 GHz.
Original language | English |
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Title of host publication | 2022 18th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob) |
Publisher | IEEE Xplore |
Pages | 268-273 |
Number of pages | 6 |
ISBN (Print) | 978-1-6654-6976-0 |
DOIs | |
Publication status | Published - 12 Oct 2022 |
Event | 8th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob): WiMob 2022 - Thessaloniki, Greece Duration: 10 Oct 2022 → 12 Oct 2022 |
Conference
Conference | 8th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob) |
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Abbreviated title | WiMob 2022 |
Period | 10/10/22 → 12/10/22 |
Fingerprint
Dive into the research topics of 'A Symmetric Wideband Doherty Power Amplifier for the n78 - 5G NR Frequency Band'. Together they form a unique fingerprint.Projects
- 1 Finished
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UltimateGaN - Research for GaN technologies, devices and applications to address the challenges of the future GaN roadmap
Paulitsch, H., Takahashi, H., Peppas, I., Gruber, A., Mukti, P. H. & Schreiber, H.
1/05/19 → 30/04/23
Project: Research project