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Initial analysis of SAR from a cell phone inside a vehicle by numerical computation.
dc.contributor.author | Anzaldi, Gabriel |
dc.contributor.author | Silva Martínez, Fernando |
dc.contributor.author | Fernández Chimeno, Mireya |
dc.contributor.author | Quílez Figuerola, Marcos |
dc.contributor.author | Riu Costa, Pere Joan |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica |
dc.date.accessioned | 2007-11-20T14:44:28Z |
dc.date.available | 2007-11-20T14:44:28Z |
dc.date.created | 2007-05-31 |
dc.date.issued | 2007-05-31 |
dc.identifier.citation | Anzaldi G, Silva F, Fernandez M, Quilez M, Riu PJ. Initial analysis of SAR from a cell phone inside a vehicle by numerical computation. IEEE Transactions on biomedical engineering, 2007,vol 54 núm. 5, p.921-930 |
dc.identifier.issn | 0018-9294 |
dc.identifier.uri | http://hdl.handle.net/2117/1342 |
dc.description.abstract | The purpose of this paper is to analyze the influence of the metallic structures of a realistic car body frame on the specific absorption rate (SAR) produced by a cell phone when a complete human body model is placed at different locations inside the vehicle, and to identify the relevant parameters responsible for these changes. The modeling and analysis of the whole system was conducted by means of computer simulations based on the full wave finite-difference time-domain (FDTD) numerical method. The excitation considered was an 835 MHz 2 dipole located as a handsfree communication device or as a hand-held portable system. We compared the SAR at different planes on the human model, placed inside the vehicle with respect to the free space situation. The presence of the car body frame significantly changes the SAR distributions, especially when the dipole is far from the body. Although the results are not conclusive on this point, this change in SAR distribution is not likely to produce an increase above the limits in current guidelines for partial body exposure, but may be signifi- cant for whole-body exposure. The most relevant change found was the change in the impedance of the dipole, affecting the radiated power. A complementary result from the electromagnetic computations performed is the change in the electromagnetic field distribution inside a vehicle when human bodies are present. The whole vehicle model has been optimized to provide accurate results for sources placed inside the vehicle, while keeping low requirements for computer storage and simulation time. |
dc.format.extent | 921-930 |
dc.language.iso | eng |
dc.publisher | Institution of Electrical and Electronics Engineers |
dc.subject | Àrees temàtiques de la UPC::Enginyeria biomèdica::Electrònica biomèdica |
dc.subject.lcsh | Electrophysiology |
dc.subject.lcsh | Medical physics |
dc.subject.other | Bioelectric phenomena |
dc.subject.other | Biological effects of microwaves |
dc.subject.other | Biomagnetism |
dc.subject.other | Cellular radio |
dc.subject.other | Electromagnetic fields |
dc.subject.other | Finite difference time-domain numerical method |
dc.subject.other | Physiological models |
dc.subject.other | SAR analysis |
dc.subject.other | Specific absortion rate |
dc.subject.other | Cell phone |
dc.subject.other | Vehicle |
dc.subject.other | Realistic car body frame |
dc.subject.other | Finite-difference time-domain numerical methods |
dc.subject.other | Hands-free |
dc.subject.other | Communication device |
dc.subject.other | Hand-held portable system |
dc.subject.other | Electromagnetic field distribution |
dc.subject.other | 835 MHz |
dc.title | Initial analysis of SAR from a cell phone inside a vehicle by numerical computation. |
dc.type | Article |
dc.subject.lemac | Electrofisiologia -- Mètodes numèrics |
dc.subject.lemac | Medicina física |
dc.contributor.group | Universitat Politècnica de Catalunya. IEB - Instrumentació Electrònica i Biomèdica |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Open Access |
dc.relation.projectidctt | DPI2001-0897-C02-01 |
dc.relation.projectidctt | DPI2004-07865-C02-01 |
local.personalitzacitacio | true |
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