Experimental results with two wireless power transfer systems

This paper describes two wireless power transfer systems. The Wireless Identification and Sensing Platform (WISP) is a platform for sensing and computation that is powered and read by a commercial off-the-shelf UHF (915 MHz) RFID reader. WISPs are small sensor devices that consume on the order of 2...

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Bibliographic Details
Published in2009 IEEE Radio and Wireless Symposium pp. 16 - 18
Main Authors Sample, A., Smith, J.R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.01.2009
Subjects
Battery charge measurement
Microcontrollers
Poles and towers
Power measurement
Radio frequency
Radiofrequency identification
RF Power Harvesting
Sensing
Temperature sensors
UHF RFID
Voltage
Wireless Power Transfer
Wireless sensor networks
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ISBN9781424426980
1424426987
ISSN2164-2958
DOI10.1109/RWS.2009.4957273

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Summary:This paper describes two wireless power transfer systems. The Wireless Identification and Sensing Platform (WISP) is a platform for sensing and computation that is powered and read by a commercial off-the-shelf UHF (915 MHz) RFID reader. WISPs are small sensor devices that consume on the order of 2 uW to 2 mW, and can be operated at distances of up to several meters from the reader. The second system harvests VHF or UHF energy from TV towers, with power available depending on range and broadcast transmit power. We report on an experiment in which 60 uW is harvested at a range of about 4 km.
ISBN:9781424426980
1424426987
ISSN:2164-2958
DOI:10.1109/RWS.2009.4957273