This article presents a high-sensitivity and high energy efficiency wake-up receiver (WuRx) based on an injection-locked oscillator (ILO) and an envelope detector to provide the capabilities of reliable demodulation for ON–OFF keying (OOK), binary frequency shift keying (BFSK), and differential binary phase shift keying (DBPSK) demodulation schemes. A 54- $\mu \text{W}$ 433-MHz multimode WuRx is implemented in a 0.18- $\mu \text{m}$ CMOS process. For a data rate of 200 kb/s and a bit error rate (BER) <0.1%, the receiver achieves sensitivities of −80/−78/−77 dBm under the OOK/BFSK/DBPSK demodulation schemes, respectively. Furthermore, incorporating an external loop antenna with a reception of an ILO, the receiver features a low-power mode of just $11~\mu \text{W}$ with a sensitivity of at least −71 dBm.

中文翻译：

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基于注入锁定振荡器的超低功耗 OOK/BFSK/DBPSK 唤醒接收器

本文介绍了一种基于注入锁定振荡器 (ILO) 和包络检波器的高灵敏度和高能效唤醒接收器 (WuRx)，为开关键控 (OOK)、二进制频率提供可靠的解调能力。移键控 (BFSK) 和差分二进制相移键控 (DBPSK) 解调方案。一个 54- $\mu \text{W}$ 433-MHz 多模 WuRx 在 0.18- $\mu \text{m}$ CMOS工艺。对于 200 kb/s 的数据速率和误码率 (BER) < 0.1%，接收器在 OOK/BFSK/DBPSK 解调方案下分别达到 -80/-78/-77 dBm 的灵敏度。此外，该接收器结合了一个接收 ILO 的外部环形天线，具有低功耗模式 $11~\mu \text{W}$ 灵敏度至少为 -71 dBm。