|Title:||A CMOS Envelope Tracking Supply Converter for RF Power Amplifiers of 5G NR Mobile Terminals||Authors:||Lin Y.-C
YI-JAN EMERY CHEN
|Keywords:||5G NR; envelope tracking (ET); mobile communication; power amplifier (PA); RF transmitter; supply converter||Issue Date:||2021||Journal Volume:||36||Journal Issue:||6||Start page/Pages:||6814-6823||Source:||IEEE Transactions on Power Electronics||Abstract:||
An envelope tracking supply converter was presented for the RF power amplifiers of sub-6 GHz 5G NR mobile devices. The hybrid supply converter consisted of a linear, fast switching, and slow switching regulators connected in parallel. The two-phase hysteretic control was proposed for use in the fast switching regulator to track the fast-varying envelope of 40-MHz 5G NR signal. The 0.25-μm CMOS supply converter achieved a maximum efficiency of 79.1%. The power-added efficiency improvement of the RF power amplifier with the proposed supply converter was 3.1% when tested with a 40-MHz 256-QAM 5G NR signal. ? 1986-2012 IEEE.
|ISSN:||08858993||DOI:||10.1109/TPEL.2020.3039786||SDG/Keyword:||CMOS integrated circuits; Efficiency; Power amplifiers; Power converters; Switching circuits; Envelope tracking; Fast switching; Hysteretic control; Maximum Efficiency; Mobile terminal; Power-added efficiency; RF power amplifiers; Switching regulator; 5G mobile communication systems|
|Appears in Collections:||電機工程學系|
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