A 2.4 GHz Interferer-Resilient Wake-Up Receiver Using A Dual-IF Multi-Stage N-Path Architecture

作者：Salazar Camilo^*; Cathelin Andreia; Kaiser Andreas; Rabaey Jan

来源：IEEE Journal of Solid-State Circuits, 2016, 51(9): 2091-2105.

DOI：10.1109/JSSC.2016.2582509

• Wireless sensor networks
• radio frequency integrated circuits
• wake-up receiver
• ultra-low power
• N-path filters
• interferer resilient

A 2.4 GHz interferer-resilient wake-up receiver for ultra-low power wireless sensor nodes uses an uncertain-IF dual-conversion topology, combining a distributed multi-stage N-path filtering technique with an unlocked low-Q resonator-referred local oscillator. This structure provides narrow-band selectivity and strong immunity against interferers, while avoiding expensive external resonant components such as BAW resonators or crystals. The 65 nm CMOS receiver prototype provides a sensitivity of -97 dBm and a carrier-to-interferer ratio better than -27 dB at 5 MHz offset, for a data rate of 10 kb/s at a 10(-3) bit error rate, while consuming 99 mu W from a 0.5 V voltage supply under continuous operation.

• 出版日期2016-9