Multiple antenna rectifiers for radio frequency energy scavenging in wireless sensors

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Wireless sensors with radio frequency (RF) energy scavenging capabilities can operate batteryless and thus are promising for a wide range of applications. For sensor nodes with a single antenna, radiation from certain incoming directions cannot be received due to zeros in the antenna radiation pattern. This can result in sensor nodes that will not power up and thus are not functional. To overcome these spatial zeros and to improve the RF-DC rectification efficiency, multi-antenna rectification schemes are considered. Multi-antenna schemes known from communications, e.g. beam steering architectures, are not suitable for ultra-low power sensor nodes, as they require an on-chip power supply as well as a large area. With these practical constraints on power and area, we address an alternative approach to multi-antenna rectification schemes dedicated to RF energy scavenging. Using circuit simulations, we show that the proposed scheme achieves a good balance between directional uniformity and RF-DC rectification efficiency.
Originele taal-2Engels
TitelIEEE International Symposium on Circuits and Systems (ISCAS), May 24-27, 2015, Lisbon, Portugal
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's702-705
DOI's
StatusGepubliceerd - 2015
Evenement2015 IEEE International Symposium on Circuits and Systems (ISCAS 2015) - Lisbon, Portugal
Duur: 24 mei 201527 mei 2015
http://www.iscas2015.org/

Congres

Congres2015 IEEE International Symposium on Circuits and Systems (ISCAS 2015)
Verkorte titelISCAS 2015
LandPortugal
StadLisbon
Periode24/05/1527/05/15
AnderCircuits and Systems (ISCAS), 2015 IEEE International Symposium on
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Citeer dit

Linnartz, J. P. M. G., Wu, Y., Maree, J. G. A., & Matters - Kammerer, M. (2015). Multiple antenna rectifiers for radio frequency energy scavenging in wireless sensors. In IEEE International Symposium on Circuits and Systems (ISCAS), May 24-27, 2015, Lisbon, Portugal (blz. 702-705). Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ISCAS.2015.7168730