应用于物联网的纳瓦级唤醒接收机芯片  

Nanowatt wake-up receiver for IoT applications

作　　者：杨建行 王霖伟 李振 蓝宏健 周荣 刘术彬 YANG Jianhang;WANG Linwei;LI Zhen;LAN Hongjian;ZHOU Rong;LIU Shubin(School of Microelectronics,Xidian University,Xi'an 710068,China)

机构地区：[1]西安电子科技大学微电子学院,西安710068

出　　处：《集成电路与嵌入式系统》2024年第6期9-17,共9页INTEGRATED CIRCUITS AND EMBEDDED SYSTEMS

基　　金：中央高校基本科研业务费专项基金资助(XJSJ23046);西安电子科技大学研究生创新基金资助(YJS2213)。

摘　　要：针对物联网中无线接收机模块功耗浪费的问题,设计并实现了一种纳瓦级功耗唤醒接收机。唤醒接收机接收到唤醒信号后将“唤醒”主接收机。该唤醒接收机系统包括匹配网络、无源包络检波、基带放大器、比较器、相关器以及数字比较器。所提出的无源包络检波代替传统有源检波电路,极大地节省了系统功耗,同时配合前端无源匹配网络可以提供23.6 dB的无源增益。信息通过通断键控(On Off Keying,OOK)进行调制,该唤醒接收机基于65 nm CMOS工艺设计,在载波频率433 MHz、数据速率100 bps、码长8位的OOK信号下,唤醒接收机的灵敏度可达-72 dBm,模拟部分功耗为21.9 nW,数字部分功耗为93.8 nW。To address the power waste problems of wireless receiver module in the Internet of Things,a nanowatt wake-up receiver is designed and implemented.The wake-up receiver"wakes up"the main receiver after receiving the wake-up signal.The wake-up receiver system includes matching network,passive envelope detection,baseband amplifier,comparator,correlator and digital comparator.The proposed passive envelope detection replaces the traditional active detection circuit,significantly lowering the system power consumption,while providing 23.6 dB passive gain with the front-end passive matching network.The information is modulated by on-off keying(OOK).The wake up receiver is designed based on 65 nm CMOS technology.Under the carrier frequency of 433 MHz,data rate of 100 bps and code length of 8 bit OOK signal,the sensitivity of the wake up receiver can reach-72 dBm.The power consumption of the analog part is 21.9 nW,and the power consumption of the digital part is 93.8 nW.

关 键 词：物联网 唤醒接收机 低功耗 匹配网络 集成电路设计 

分 类 号：TN43[电子电信—微电子学与固体电子学]