An Ultra-Low Power, Fully Integrated Wake-Up Receiver and Digital Baseband with All-Digital Impairment Correction and -92.4dBm Sensitivity for 802.11ba

A pre-802.11ba wake-up radio (WUR) receiver and digital baseband (DBB) is presented and monolithically integrated as a technology demonstrator within an 802.11a/b/g/n/ac Wi-Fi transceiver. Occupying <0.105 mm2, the WUR receiver consumes only 340 μW, with a measured sensitivity of -92.4dBm, and can tolerate a -56dBm, 25MHz offset, Wi-Fi blocker with 3dB desensitization. The WUR receiver operates when the Wi-Fi system is in sleep mode and turns on the Wi-Fi radio upon receiving an 802.11ba, D1.0 compliant, wake-up packet.