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dc.contributor.authorAnzaldi, Gabriel
dc.contributor.authorSilva Martínez, Fernando
dc.contributor.authorFernández Chimeno, Mireya
dc.contributor.authorQuílez Figuerola, Marcos
dc.contributor.authorRiu Costa, Pere Joan
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.date.accessioned2007-11-20T14:44:28Z
dc.date.available2007-11-20T14:44:28Z
dc.date.created2007-05-31
dc.date.issued2007-05-31
dc.identifier.citationAnzaldi 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.issn0018-9294
dc.identifier.urihttp://hdl.handle.net/2117/1342
dc.description.abstractThe 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.extent921-930
dc.language.isoeng
dc.publisherInstitution of Electrical and Electronics Engineers
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Electrònica biomèdica
dc.subject.lcshElectrophysiology
dc.subject.lcshMedical physics
dc.subject.otherBioelectric phenomena
dc.subject.otherBiological effects of microwaves
dc.subject.otherBiomagnetism
dc.subject.otherCellular radio
dc.subject.otherElectromagnetic fields
dc.subject.otherFinite difference time-domain numerical method
dc.subject.otherPhysiological models
dc.subject.otherSAR analysis
dc.subject.otherSpecific absortion rate
dc.subject.otherCell phone
dc.subject.otherVehicle
dc.subject.otherRealistic car body frame
dc.subject.otherFinite-difference time-domain numerical methods
dc.subject.otherHands-free
dc.subject.otherCommunication device
dc.subject.otherHand-held portable system
dc.subject.otherElectromagnetic field distribution
dc.subject.other835 MHz
dc.titleInitial analysis of SAR from a cell phone inside a vehicle by numerical computation.
dc.typeArticle
dc.subject.lemacElectrofisiologia -- Mètodes numèrics
dc.subject.lemacMedicina física
dc.contributor.groupUniversitat Politècnica de Catalunya. IEB - Instrumentació Electrònica i Biomèdica
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.relation.projectidcttDPI2001-0897-C02-01
dc.relation.projectidcttDPI2004-07865-C02-01
local.personalitzacitaciotrue


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