DocumentCode :
2934969
Title :
Optimized wireless power transfer to RFID sensors via magnetic resonance
Author :
Georgakopoulos, Stavros V. ; Jonah, Olutola
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Int. Univ., Miami, FL, USA
fYear :
2011
fDate :
3-8 July 2011
Firstpage :
1421
Lastpage :
1424
Abstract :
Wireless powering of sensors through the strongly coupled magnetic resonance (SCMR) method at the RFID frequency of 27.2 MHz is studied here. The proposed system comprises of two single resonant loops and two self-resonant helical coils, in contrast to the two resonant loops traditionally used in RFID systems. The system is designed using simulation software and is validated by measurements. We illustrate that this design exhibits large efficiency at the desired frequency, which is significantly larger than the efficiency achieved by two conventional RFID loops. This is due to the large quality factor of the two single resonant loops as well as the inductively coupled pair of self-resonant helices employed in this SCMR power scheme.
Keywords :
magnetic resonance; radiofrequency identification; telecommunication computing; RFID loops; RFID sensors; RFID systems; self-resonant helical coils; simulation software; single resonant loops; strongly coupled magnetic resonance; wireless power transfer; Couplings; Frequency measurement; Radiofrequency identification; Resonant frequency; Wireless communication; Wireless sensor networks; coupling; efficiency; magnetic resonance; wireless sensor;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
ISSN :
1522-3965
Print_ISBN :
978-1-4244-9562-7
Type :
conf
DOI :
10.1109/APS.2011.5996559
Filename :
5996559
Link To Document :
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