Ultra-Low Power Wake-Up Receivers Using N-Path Filtering Techniques.
The continuous development of performant systems intended for Wireless Sensor Networks (WSN) sets an exciting challenge to bring “intelligence” to our environment. In order to make WSN technology viable, each individual node of the network has to respect drastic physical and wireless telecommunication constraints including small physical occupied volume, extremely low-cost, low-power consumption, high sensitivity and strong immunity against interferers. As a result, Wake-Up Receivers (WuRx) have been proposed as the most viable solution to guarantee energy efficient wireless communication in WSN. This research focuses on the development of an Ultra-Low Power WuRx intended for high sensor node clustering WSN applications. The proposed dual-IF WuRx architecture takes creative advantage of a multi-layer N-path filter topology to push the boundary of WuRxs’ sensitivity and enable robust interference rejection, while avoiding expensive off-chip resonant components such as BAWs or crystals.
Camilo Salazar Received the B.S. and the M.S. degrees in electrical engineering from the University of Lyon, France, in 2009 and 2011, respectively. He is currently working towards the PhD degree in Ultra-Low Power Analog RF Design at University of Lille, France, in collaboration with University of California, Berkeley, USA and STMicroelectronics, Crolles, France.
Camilo Salazar, Andreas Kaiser, Andreia Cathelin and Jan Rabaey, “A -97dBm-Sensitivity Interferer-Resilient 2.4GHz Wake-Up Receiver Using Dual-IF Multi-N-Path Architecture in 65nm CMOS”, IEEE International Solid-State Circuits Conference (ISSCC), Dig. Tech. Papers, 2015. (Unpublished).