The Switched-Capacitor Power Amplifier: A Key Enabler for Future Communications Systems

被引：2

作者：

Walling, Jeffrey S. ^{[1
]}

机构：

[1] Univ Coll Cork, Tyndall Natl Inst, MCCI, Cork, Ireland

来源：

IEEE 45TH EUROPEAN SOLID STATE CIRCUITS CONFERENCE (ESSCIRC 2019) | 2019年

关键词：

digital power amplifier (DPA); switched-capacitor power amplifier (SCPA); power amplifier (PA); digital-to-analog converter (DAC); power-DAC; CMOS; RF; VOLTAGE; DESIGN;

D O I：

10.1109/esscirc.2019.8902890

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：

In this paper, power amplifiers in CMOS technologies are reviewed including traditional PAs and the digital power amplifier (DPA). DPAs embed the functionality of an upconversion mixer and digital-to-analog converter (DAC) in the PA. Hence a more appropriate label for DPAs is RF-Power-DACs. The "Switched-Capacitor Power Amplifier" (SCPA) is highlighted due to its potential to transform future communications networks because of its small-size, high linearity, and high efficiency. Because the SCPA (and other DPAs) can directly interface with digital signals while outputting RF signals, it is a flexible mixed-signal interface circuit that does not require a large baseband filter. Several recent innovations in the SCPA that enable it to be reconfigured digitally across multiple frequency bands and to be used in beamforming/MIMO transceivers are highlighted.

引用

页码：18 / 24

页数：7

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