A CMOS Envelope Tracking Supply Converter for RF Power Amplifiers of 5G NR Mobile Terminals

被引：11
|
作者：
Lin, Yu-Chen [1 ,2 ]
Chen, Yi-Jan Emery [1 ,2 ]
机构：
[1] Natl Taiwan Univ, Dept Elect Engn, Grad Inst Elect Engn, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10617, Taiwan
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2021年 / 36卷 / 06期
关键词：
Regulators; Switches; Bandwidth; Radio frequency; Control systems; 5G mobile communication; Switching circuits; 5G NR; envelope tracking (ET); mobile communication; power amplifier (PA); RF transmitter; supply converter; EFFICIENCY; MODULATOR; VOLTAGE;
D O I：
10.1109/TPEL.2020.3039786
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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-mu m 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.
引用
收藏
页码：6814 / 6823
页数：10
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