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A 3-W 868-MHz wake-up receiver with -83 dBm sensitivity and scalable data rate

: Milosiu, H.; Oehler, F.; Eppel, M.; Frühsorger, D.; Lensing, S.; Popken, G.; Thönes, T.


Institute of Electrical and Electronics Engineers -IEEE-:
ESSCIRC 2013, 39th European Solid‐State Circuits Conference. Proceedings : Bucharest, Romania; JW Marriott Bucharest Grand Hotel; 16 - 20 September 2013
Piscataway, NJ: IEEE, 2013
ISBN: 978-1-4799-0643-7 (online)
ISBN: 978-1-4799-0644-4
ISBN: 1-4799-0643-3 (online)
European Solid-State Circuits Conference (ESSCIRC) <39, 2013, Bucharest>
Fraunhofer IIS ()

A ultra-low power wake-up receiver based on a novel fast sampling method is presented. The innovative approach allows the scalability of current consumption versus data rate at a constant sensitivity, meeting both short reaction time and ultra-low power consumption requirements. The 868 MHz OOK receiver comprises an analogue superheterodyne front-end and two digital 31 bit correlating decoders. It is fabricated in a 130 nm CMOS technology. The current consumption of the prototype is 1.2 A at 2.5 volts supply voltage and a reaction time of 484 ms. The receiver sensitivity is -83 dBm thus obtaining a line-of-sight distance of 1200 metres for an assumed transmit power of 10 mW. Compared to other sub-100 W receivers, the sensitivity of the presented implementation is best.