JSSC 2019第5期RF & Wireless28nm

A 02-V Energy-Harvesting BLE Transmitter With a Micropower Manager Achieving 25

本文介绍了一种超低电压能量收集BLE发射器，系统效率达25%。

28nm CMOS, 0.2V, 25%系统效率, 0.53mm²面积

能量收集BLE发射器超低电压微功率管理相位噪声

▸集成微功率管理器定制供电电压

▸堆叠变压器耦合ULV VCO提升性能

▸类E/F2 PA内置LC陷波抑制谐波

Abstract

This paper reports an ultralow-voltage (ULV) energy-harvesting bluetooth low -energy (BLE) transmitter (TX). It features: 1) a fully integrated micropower manager ( µPM) to customize the internal supply and bias voltages for both active and sleep modes; 2) a gate-to-source-coupling ULV voltage- controlled oscillator (VCO) using a high-ratio (5.6:1) stacking transformer to improve the phase noise and output swing; 3) an ULV class-E/F 2 power ampliﬁer (PA) with an inside-transformer LC notch to su