Title
A 2.4GHz/915MHz 51μW wake-up receiver with offset and noise suppression
Author
Huang, X.
Rampu, S.
Wang, X.
Dolmans, G.
de Groot, H.
TNO Industrie en Techniek
Publication year
2010
Abstract
In order to simultaneously optimize network lifetime and latency in wireless sensor networks (WSN), an always-on wake-up receiver (WuRx) can be used to monitor the radio link continuously. For truly autonomous sensor nodes employing energy scavenging, only 50μW power is available for the WuRx [1]. An envelope detector is a popular choice in WuRx because of its low power consumption. However, the detector is always the bottleneck of the receiver sensitivity since it attenuates low level input signal and adds excessive noise. One way of improving sensitivity is to amplify the signal before the detector, for example at RF [2, 3] or IF [4] stages, to enhance the SNR at the output. ©2010 IEEE.
Subject
Mechatronics, Mechanics & Materials
HOL - Holst
TS - Technical Sciences
High Tech Systems & Materials
Electronics
Industrial Innovation
Autonomous sensors
Energy scavenging
Envelope detectors
Input signal
Low level
Low-power consumption
Network lifetime
Noise suppression
Receiver sensitivity
Wake-up receiver
Detector circuits
Radio links
Sensor nodes
Sensors
Signal receivers
Wakes
Wireless sensor networks
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DOI
https://doi.org/10.1109/isscc.2010.5433958
TNO identifier
461587
ISBN
9781424460342
ISSN
0193-6530
Source
2010 IEEE International Solid-State Circuits Conference, ISSCC 2010, 7 February 2010 through 11 February 2010, San Francisco, CA, 53, 222-223
Series
Digest of Technical Papers - IEEE International Solid-State Circuits Conference
Article number
05433958
Document type
conference paper