DocumentCode
1716130
Title
Parallel-FDTD and experimental results of SAR for flat and head phantoms @ 900 MHz
Author
Filho, Ricardo H T Chamié ; De Oliveira, Rodrigo M S ; da S S Sobrinho, C.L. ; De Almeida, Antonio Marini
Author_Institution
Inst. of Technol. (ITEC), Univ. Fed. do Para, Belem, Brazil
fYear
2009
Firstpage
373
Lastpage
378
Abstract
In this work, computational simulations were performed in order to characterize the way electromagnetic radiation interacts with the human head. Average of realistic parameters of bio-materials, such as bones and head liquids, as well as near field radiation parameters of a half-wave dipole are beeing considered in order to achieve results. This way, a software was developed in which Maxwell´s equations are numerically solved by using a Beowulf cluster. The solver is based on the finite-difference time-domain method, associated to domain truncation by the uniaxial perfectly mactched layers technique and full-wave solutions have been obtained from the simulation. All averaged SAR values and electric field distributions inside modeled analysed structures have been compared to experimental results obtained in a full setup laboratory with all equipments necessary to perform dosimetric validations of telecomunication devices as shown in IEEE 1528.
Keywords
Maxwell equations; bioelectric phenomena; biological effects of radiation; biomagnetism; bone; dipole antennas; dosimetry; finite difference time-domain analysis; medical computing; parallel processing; phantoms; Beowulf cluster; Maxwell´s equations; SAR; biomaterial parameters; computational simulations; domain truncation; finite difference time domain method; flat phantoms; frequency 900 MHz; half wave dipole; head phantoms; human head-electromagnetic radiation interaction; near field radiation parameters; parallel FDTD; specific absorption rate; uniaxial perfectly mactched layers technique; Bones; Computational modeling; Electromagnetic radiation; Finite difference methods; Humans; Imaging phantoms; Liquids; Maxwell equations; Near-field radiation pattern; Time domain analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International
Conference_Location
Belem
ISSN
1679-4389
Print_ISBN
978-1-4244-5356-6
Electronic_ISBN
1679-4389
Type
conf
DOI
10.1109/IMOC.2009.5427561
Filename
5427561
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