Projects per year
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.
|Title of host publication||2022 18th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)|
|Number of pages||6|
|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||8th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)|
|Abbreviated title||WiMob 2022|
|Period||10/10/22 → 12/10/22|
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- 1 Active
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