一个365nW−61.5 dBm灵敏度，1.875 cm2 2.4 GHz唤醒接收机，整流天线协同设计无源增益

2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) Pub Date : 2017-06-01 DOI:10.1109/RFIC.2017.7969047

Kamala Raghavan Sadagopan, Jian Kang, Sanket Jain, Y. Ramadass, A. Natarajan

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引用次数: 31

摘要

提出了一种采用整流天线协同设计无源电压增益和射频滤波的2.4 GHz 365nW唤醒接收机(WuRX)。射频频率可调的WuRX采用可编程的32位OOK唤醒签名，实现- 61.5dBm的灵敏度，速度为2.5 kb/s，无需IC和天线之间的任何片外匹配组件。在高q整流-天线接口中进行射频滤波，即使在干扰载波比为19.1 dB的情况下，连续波阻挡器在3MHz偏移处的误码率为10−3。65nm的CMOS WuRX IC占地1.1mm2，而WuRX(含天线)占地1.875cm2。

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A 365nW −61.5 dBm sensitivity, 1.875 cm2 2.4 GHz wake-up receiver with rectifier-antenna co-design for passive gain

A 2.4 GHz 365nW wake-up receiver (WuRX) with RF envelope detection using rectifier-antenna co-design for passive voltage gain and RF filtering is presented. The RF frequency-tunable WuRX uses a programmable 32-bit OOK wake-up signature, achieving sensitivity of −61.5dBm for 2.5 kb/s without any off-chip matching components between IC and antenna. RF filtering in the high-Q rectifier-antenna interface results in 10−3 BER even with interferer-to-carrier ratio of 19.1 dB for CW blocker at 3MHz offset. The 65-nm CMOS WuRX IC occupies 1.1mm2, while the WuRX (including antenna) occupies 1.875cm2.

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2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)

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