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Article

A Numerical Estimation of a RFID Reader Field and SAR inside a Blood Bag at UHF

Department of Electrical and electronic Engineering (DIEE), University of Cagliari, Piazza d’Armi, 09123 Cagliari, Italy
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Academic Editors: Michael Sheng and Ali Shemshadi
Electronics 2016, 5(4), 77; https://doi.org/10.3390/electronics5040077
Received: 23 September 2016 / Revised: 31 October 2016 / Accepted: 4 November 2016 / Published: 8 November 2016
(This article belongs to the Special Issue RFID Systems and Applications)
In this paper, the effects of UHF electromagnetic fields produced by a RFID reader on a blood bag are evaluated numerically in several configurations. The results of the simulation, field level and distribution, specific absorption rate (SAR), and heating time show that an exposure to a typical reader field leads to a temperature increase smaller than 0.1 C and to a SAR smaller than 1 W/kg. As a consequence, no adverse biological effects occur during a typical UHF RFID reading cycle on a blood bag. Therefore, the blood contained in a bag traced using UHF-RFID is as safe as those traced using barcodes. The proposed analysis supports the use of UHF RFID in the blood transfusion supply chain. View Full-Text
Keywords: antennas; biomedical communication; blood bag; radiofrequency identification; specific absorption rate (SAR); UHF RFID antennas; biomedical communication; blood bag; radiofrequency identification; specific absorption rate (SAR); UHF RFID
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MDPI and ACS Style

Fanti, A.; Casu, S.; Mazzarella, G. A Numerical Estimation of a RFID Reader Field and SAR inside a Blood Bag at UHF. Electronics 2016, 5, 77. https://doi.org/10.3390/electronics5040077

AMA Style

Fanti A, Casu S, Mazzarella G. A Numerical Estimation of a RFID Reader Field and SAR inside a Blood Bag at UHF. Electronics. 2016; 5(4):77. https://doi.org/10.3390/electronics5040077

Chicago/Turabian Style

Fanti, Alessandro, Sergio Casu, and Giuseppe Mazzarella. 2016. "A Numerical Estimation of a RFID Reader Field and SAR inside a Blood Bag at UHF" Electronics 5, no. 4: 77. https://doi.org/10.3390/electronics5040077

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