A linear model of efficiency for Switched-Capacitor RF Power-Amplifiers

Passamani, A.,Ponton, D.,Knoblinger, G.,Bevilacqua, A.

Microelectronics and Electronics（2014）

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摘要

In this paper, a linear model for intrinsic power and efficiency in Radio-Frequency Switched-Capacitor Power Amplifiers (SCPA) is presented. Given a target output power and frequency of operation this model enables sizing the output stage inverter for maximum efficiency by means of back-of-the-envelope equations. The model is validated by SpectreRF simulations for a low-power CMOS 28nm technology for different frequencies of interest.

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关键词

cmos analogue integrated circuits,radiofrequency power amplifiers,switched capacitor networks,scpa,spectrerf simulations,back-of-the-envelope equations,intrinsic power,linear model,low-power cmos technology,output stage inverter,radio-frequency switched-capacitor power amplifiers,size 28 nm,target output power,c-dac,dpa,pa,rf-dac,efficiency,power

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