Abstract
To assess the feasibility of ambient RF energy scavenging, a survey of expected power density levels distant from GSM-900 and GSM-1800 base stations has been conducted and power density measurements have been performed in a WLAN environment. It appears that for distances ranging from 25 m to 100 m from a GSM base station, power density levels ranging from 0.1 mW/m2 to 3.0 mW/m2 may be expected. First measurements in a WLAN environment indicate even lower power density values, making GSM and WLAN unlikely to produce enough ambient RF energy for wirelessly powering miniature sensors. A single GSM telephone however has proven to deliver enough energy for wirelessly powering small applications on moderate distances.
Original language | English |
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Title of host publication | 38th European Microwave Conference, 2008 : EuMC 2008 ; 27 - 31 October 2008, Amsterdam, Netherlands |
Place of Publication | Piscataway |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 721-724 |
ISBN (Print) | 978-2-87487-006-4 |
DOIs | |
Publication status | Published - 2009 |