A Fully Integrated Reconfigurable Multi-Mode Class-F2,3 GaN Power Amplifier
|Title:||A Fully Integrated Reconfigurable Multi-Mode Class-F2,3 GaN Power Amplifier||Authors:||Nikandish, Gholamreza; Staszewski, Robert Bogdan; Zhu, Anding||Permanent link:||http://hdl.handle.net/10197/12019||Date:||31-Jul-2020||Online since:||2021-03-10T16:43:46Z||Abstract:||In this paper, we propose a reconfigurable multi-mode fully integrated power amplifier (PA) in GaN technology. The PA is composed of one main transistor, biased in class-AB, and three auxiliary transistors which can be switched between class-AB and deep class-C, to improve efficiency and linearity of the PA. Furthermore, a harmonic termination network is proposed to enable operation of the PA in class-F2,3. A proof-of-concept PA, fabricated using a 250-nm GaN-on-SiC process, provides 33.8 dBm output power and 42% peak drain efficiency (DE) at 4.8 GHz. Modulated-signal measurements using a 200-MHz 256-QAM 7.2-dB peak-to-average power ratio (PAPR) signal indicate that rms error vector magnitude (EVMrms) < 5% (–26 dB) can be achieved with 27.7–28.5 dBm average output power, 26–30% average DE, and –38.1 to –33.5 dBc adjacent channel leakage ratio (ACLR), in the four operation modes. It is shown that ACLR can be improved by 6 dB at lower output power levels through reconfiguring the mode of PA operation.||Funding Details:||Science Foundation Ireland||Type of material:||Journal Article||Publisher:||IEEE||Journal:||IEEE Solid-State Circuits Letters||Volume:||3||Start page:||270||End page:||273||Copyright (published version):||2020 IEEE||Keywords:||Transistors; Power generation; Capacitance; Linearity; Gain; Gallium nitride; Logic gates||DOI:||10.1109/lssc.2020.3013430||Language:||en||Status of Item:||Peer reviewed||ISSN:||2573-9603||This item is made available under a Creative Commons License:||https://creativecommons.org/licenses/by-nc-nd/3.0/ie/|
|Appears in Collections:||Electrical and Electronic Engineering Research Collection|
Show full item record
If you are a publisher or author and have copyright concerns for any item, please email email@example.com and the item will be withdrawn immediately. The author or person responsible for depositing the article will be contacted within one business day.