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Electronics 2017, 6(4), 106; doi:10.3390/electronics6040106

Fractional Calculus Based FDTD Modeling of Layered Biological Media Exposure to Wideband Electromagnetic Pulses

Department of Electrical and Information Engineering, Politecnico di Bari, via E. Orabona, 4-70125 Bari, Italy
EmTeSys srl, via Beata Elia di S.Clemente, 223-70122 Bari, Italy
The Antenna Company, High Tech Campus 41, 5656 AE Eindhoven, The Netherlands
Institute of Cybernetics, Tomsk Polytechnic University, 84/3 Sovetskaya Street, 634050 Tomsk, Russia
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Received: 12 October 2017 / Revised: 17 November 2017 / Accepted: 22 November 2017 / Published: 29 November 2017
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Electromagnetic fields are involved in several therapeutic and diagnostic applications such as hyperthermia and electroporation. For these applications, pulsed electric fields (PEFs) and transient phenomena are playing a key role for understanding the biological response due to the exposure to non-ionizing wideband pulses. To this end, the PEF propagation in the six-layered planar structure modeling the human head has been studied. The electromagnetic field and the specific absorption rate (SAR) have been calculated through an accurate finite-difference time-domain (FDTD) dispersive modeling based on the fractional derivative operator. The temperature rise inside the tissues due to the electromagnetic field exposure has been evaluated using both the non-thermoregulated and thermoregulated Gagge’s two-node models. Moreover, additional parametric studies have been carried out with the aim to investigate the thermal response by changing the amplitude and duration of the electric pulses. View Full-Text
Keywords: dispersive media; fractional calculus; dielectric relaxation; bioheat; thermoregulation dispersive media; fractional calculus; dielectric relaxation; bioheat; thermoregulation

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Mescia, L.; Bia, P.; Chiapperino, M.A.; Caratelli, D. Fractional Calculus Based FDTD Modeling of Layered Biological Media Exposure to Wideband Electromagnetic Pulses. Electronics 2017, 6, 106.

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