JSSC 2020第6期RF & Wireless65nm/180nm

A 223-nW- 455 cm2 Temperature-Robust Wake-Up Receiver Achieving a Sensitivity of

本文介绍了一种温度补偿的微型唤醒接收器，功耗仅为22.3 nW，工作在9 GHz频段，面积小且温度不敏感。

65nm (RF) 和 180nm (BB) CMOS, 22.3 nW功耗, -69.5 dBm灵敏度

唤醒接收器温度补偿9 GHz无源包络检测器共模反馈

▸将载波频率提升至9 GHz，减小变压器尺寸

▸采用高阻抗无源包络检测器，实现13.5 dB的被动RF电压增益

▸全局共模反馈技术消除片外交流耦合组件需求

Abstract

This article presents a miniaturized wake-up receiver (WuRX) that is temperature-compensated yet still consumes only 22.3 nW (7.3 nW excluding the temperature- compensation blocks) while operating at 9 GHz ( X-band). By moving the carrier frequency to 9 GHz and designing a high impedance, passive envelope detector (ED), the transformer size is reduced to 0.02 cm 2 while still achieving 13.5 dB of passive RF voltage gain. To further reduce the area, a global common- mode feedback (CMFB) technique