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Whole-body averaged specific absorption rate estimation using a personal, distributed exposimeter

Arno Thielens (UGent) , Peter Vanveerdeghem (UGent) , Sam Agneessens (UGent) , Patrick Van Torre (UGent) , Günter Vermeeren (UGent) , Hendrik Rogier (UGent) , Luc Martens (UGent) and Wout Joseph (UGent)
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Abstract
For the first time, a body area network (BAN) is used to construct a personal, distributed exposimeter (PDE), which can measure the whole-body averaged specific absorption rate (SAR(wb)) in real life, together with the incident power density (S-inc). The BAN consists of four textile antennas with integrated radio frequency receiver nodes tuned to the Global System for Mobile Communications (GSM) 900 downlink band. Calibration measurements at 942.5 MHz, using a human subject, are performed in an anechoic chamber. These are combined with numerical simulations to estimate both SAR(wb) and S-inc from the averaged received power on the PDE. The PDE has 50% prediction intervals of 3 dB on S-inc and 3.3 dB on the SAR(wb), caused by the presence of the human body, whereas the best single textile antenna in our measurements exhibits PI50's of 7.1 dB on S-inc and 5 dB on SAR(wb). Measurements using the PDE are carried out in Ghent, Belgium, during which a median S-inc = 47 mu W/m(2) and SAR(wb) = 0.25 mu W/kg are measured.
Keywords
CHILDREN, Electromagnetic fields, SAR, MHZ, GHZ, ENVIRONMENTS, EXPOSURE, ELECTROMAGNETIC-FIELDS, exposure assessment, finite-difference time-domain simulations, radio frequency, specific absorption rate

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Citation

Please use this url to cite or link to this publication:

Chicago
Thielens, Arno, Peter Vanveerdeghem, Sam Agneessens, Patrick Van Torre, Günter Vermeeren, Hendrik Rogier, Luc Martens, and Wout Joseph. 2015. “Whole-body Averaged Specific Absorption Rate Estimation Using a Personal, Distributed Exposimeter.” Ieee Antennas and Wireless Propagation Letters 14: 1534–1537.
APA
Thielens, A., Vanveerdeghem, P., Agneessens, S., Van Torre, P., Vermeeren, G., Rogier, H., Martens, L., et al. (2015). Whole-body averaged specific absorption rate estimation using a personal, distributed exposimeter. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 14, 1534–1537.
Vancouver
1.
Thielens A, Vanveerdeghem P, Agneessens S, Van Torre P, Vermeeren G, Rogier H, et al. Whole-body averaged specific absorption rate estimation using a personal, distributed exposimeter. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS. PISCATAWAY: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC; 2015;14:1534–7.
MLA
Thielens, Arno, Peter Vanveerdeghem, Sam Agneessens, et al. “Whole-body Averaged Specific Absorption Rate Estimation Using a Personal, Distributed Exposimeter.” IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS 14 (2015): 1534–1537. Print.
@article{7091500,
  abstract     = {For the first time, a body area network (BAN) is used to construct a personal, distributed exposimeter (PDE), which can measure the whole-body averaged specific absorption rate (SAR(wb)) in real life, together with the incident power density (S-inc). The BAN consists of four textile antennas with integrated radio frequency receiver nodes tuned to the Global System for Mobile Communications (GSM) 900 downlink band. Calibration measurements at 942.5 MHz, using a human subject, are performed in an anechoic chamber. These are combined with numerical simulations to estimate both SAR(wb) and S-inc from the averaged received power on the PDE. The PDE has 50\% prediction intervals of 3 dB on S-inc and 3.3 dB on the SAR(wb), caused by the presence of the human body, whereas the best single textile antenna in our measurements exhibits PI50's of 7.1 dB on S-inc and 5 dB on SAR(wb). Measurements using the PDE are carried out in Ghent, Belgium, during which a median S-inc = 47 mu W/m(2) and SAR(wb) = 0.25 mu W/kg are measured.},
  author       = {Thielens, Arno and Vanveerdeghem, Peter and Agneessens, Sam and Van Torre, Patrick and Vermeeren, G{\"u}nter and Rogier, Hendrik and Martens, Luc and Joseph, Wout},
  issn         = {1536-1225},
  journal      = {IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS},
  keyword      = {CHILDREN,Electromagnetic fields,SAR,MHZ,GHZ,ENVIRONMENTS,EXPOSURE,ELECTROMAGNETIC-FIELDS,exposure assessment,finite-difference time-domain simulations,radio frequency,specific absorption rate},
  language     = {eng},
  pages        = {1534--1537},
  publisher    = {IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC},
  title        = {Whole-body averaged specific absorption rate estimation using a personal, distributed exposimeter},
  url          = {http://dx.doi.org/10.1109/LAWP.2014.2368597},
  volume       = {14},
  year         = {2015},
}

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