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A novel two‐dimensional crest factor reduction method based on concurrent output capacity of power amplifiers
Author(s) -
Tang Ke,
Huang Hang,
Yu Cuiping,
Wu Yongle,
Jin Qiuyan,
Gao Jinchun,
Liu Yuanan
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32688
Subject(s) - crest factor , amplifier , reduction (mathematics) , crest , power (physics) , clipping (morphology) , electronic engineering , computer science , engineering , mathematics , bandwidth (computing) , cmos , physics , telecommunications , optics , geometry , quantum mechanics , linguistics , philosophy
A novel two‐dimensional crest factor reduction (2D‐CFR) is proposed to improve the dual‐band concurrent performance of power amplifiers (PAs). The concurrent performance of target PA can be improved significantly when the power for peak detection conforms to the concurrent characteristic. Peak detection and clipping operation are presented based on concurrent output capacity of PAs, which can be efficiently described by introducing two design parameters. Measured results show that the drain efficiency is improved from 34.2% to 36.6% with the proposed 2D‐CFR when compared with the conventional 2D‐CFR while maintaining similar error vector magnitude and ACPRs, which indicates a significant performance improvement.