@inproceedings{Pinuela:2012,
author = {Pinuela, M and Yates, DC and Mitcheson, PD and Lucyszyn, S},
pages = {1--4},
title = {Current State of Research at Imperial College London in RF Harvesting and Inductive Power Transfer},
url = {http://www.iwweth.org/},
year = {2012}
}

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TY  - CPAPER
AB  - This paper presents simulation and experimental results for ambient RF energy harvesting and Inductive Power  Transfer  systems.  End-to-end  and  dc-load  efficiency  measurements  and  calculations  were  performed  to demonstrate the capabilities of both systems, respectively. An RF spectral survey was conducted across all the 270 underground stations in London. DTV, GSM900, GSM1800 and 3G were selected as the highest contributors and single banded  rectennas  were  fabricated  for  all  frequencies.  Ground  level  measurements  demonstrate  that  more than 50 stations have suitable channel power levels per band to allow ambient RF energy harvesting. Efficiencies of up to 40% were achieved with a single banded rectenna operating at GSM 900, and efficiencies higher than 20% were achieved for TV and 3G. Furthermore a high frequency, semi-resonant Class-E driver was used to transfer  60 W of power across a 30 cm distance with a dc-load efficiency of 66%.
AU  - Pinuela,M
AU  - Yates,DC
AU  - Mitcheson,PD
AU  - Lucyszyn,S
EP  - 4
PY  - 2012///
SP  - 1
TI  - Current State of Research at Imperial College London in RF Harvesting and Inductive Power Transfer
UR  - http://www.iwweth.org/
UR  - http://hdl.handle.net/10044/1/10270
ER  - 

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