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  4. A 7-µW 2.4-GHz wake-up receiver with -80 dBm sensitivity and high co-channel interferer tolerance
 
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2015
Conference Paper
Title

A 7-µW 2.4-GHz wake-up receiver with -80 dBm sensitivity and high co-channel interferer tolerance

Abstract
An ultra-low power wake-up receiver for 2.4-GHz wireless sensor networks, based on a fast sampling method, is presented. A novel multi-branch receiver architecture covers a wide range of interferer scenarios for highly occupied radio channels. The scalability of current consumption versus data rate at a constant sensitivity is another useful feature that fits a multitude of applications, requiring both short reaction times and ultra-low power consumption. The 2.4-GHz OOK receiver comprises a 3-branch analog superheterodyne front-end and six digital 31-bit correlating decoders. It is fabricated in a 130-nm CMOS technology. The current consumption is 2.9 mA at 2.5 V supply voltage and a reaction time of 30 ms. The receiver sensitivity is -80 dBm. Among other sub-100 mW state-of-the-art receivers, the presented implementation shows the best reported sensitivity.
Author(s)
Milosiu, H.
Oehler, F.
Eppel, M.
Fruehsorger, D.
Thoenes, T.
Mainwork
IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNet 2015. Proceedings  
Conference
Topical Conference on Wireless Sensors and Sensor Networks (WiSNet) 2015  
DOI
10.1109/WISNET.2015.7127409
Language
English
Fraunhofer-Institut für Integrierte Schaltungen IIS  
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