An Interference-Resilient BLE-Compatible Wake-Up Receiver Employing Single-Die M

Abstract

This article presents a Bluetooth low energy (BLE) compatible wake-up receiver (WuRX) that simultaneously achieves low power, high sensitivity, and interference resiliency. Interference resilience is achieved by detecting a 4-D wake-up signature based on the hopping pattern from BLE-compliant advertising events, while low power and high sensitivity are achieved by filtering each advertising channel via a single-die three-channel FBAR filter and down-converting packet energy via a designed integer-