A wireless sensing platform utilizing ambient RF energy

Author

Parks, A.N. ; Sample, A.P. ; Yi Zhao ; Smith, J.R.

Author_Institution

Electr. Eng. Dept., Univ. of Washington, Seattle, WA, USA

fYear

2013

fDate

20-23 Jan. 2013

Firstpage

154

Lastpage

156

Abstract

An ambient RF energy harvesting sensor node with onboard sensing and communication functionality was developed and tested. The minimal RF input power required for sensor node operation was -18 dBm (15.8 μW). Using a 6 dBi receive antenna, the most sensitive RF harvester was shown to operate at a distance of 10.4 km from a 1 MW UHF television broadcast transmitter, and over 200 m from a cellular base transceiver station. A complete ambient RF-powered prototype was constructed which measured temperature and light level and wirelessly transmitted these measurements.

Keywords

cellular radio; energy harvesting; radio transceivers; receiving antennas; television transmitters; wireless sensor networks; RF input power; UHF television broadcast transmitter; ambient RF energy harvesting sensor node; ambient RF-powered prototype; cellular base transceiver station; communication functionality; distance 10.4 km; distance 200 m; onboard sensing; power 1 MW; receive antenna; sensitive RF harvester; sensor node operation; wireless sensing platform; Charge pumps; Energy harvesting; Radio frequency; Sensors; Temperature measurement; Wireless communication; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS), 2013 IEEE Topical Conference on

Conference_Location

Austin, TX

Print_ISBN

978-1-4673-2930-9

Type

conf

DOI

10.1109/BioWireleSS.2013.6613706

Filename

6613706