DocumentCode :
2296624
Title :
EM absorption reduction of helix with shielding material for mobile phone applications
Author :
Faruque, Mohammad Rashed Iqbal ; Misran, Norbahiah ; Islam, Mohammad Tariqul
Author_Institution :
Inst. of Space Sci. (ANGKASA), Univ. Kebangsaan Malaysia, Bangi, Malaysia
fYear :
2011
fDate :
21-22 June 2011
Firstpage :
17
Lastpage :
21
Abstract :
This paper proposes the reduction of specific absorption rate (SAR) with shielding sheet is performed by the finite-difference time-domain method (FDTD) with Lossy-Drude model by CST Microwave Studio. We propose SAR evaluation and reduction methods based on power conservation. It has been shown that even though the use of shielding (ferrite) material not only reduces the SAR in the human head but also the radiated power, it reduces the SAR in head more considerably than the radiated power. Shielding materials have achieved a 58.68% reduction of the initial SAR value for the case of 1 gm SAR. These results suggest a guideline to choose various types of materials with the maximum SAR reducing effect for a phone model.
Keywords :
absorbing media; electromagnetic wave absorption; ferrites; finite difference time-domain analysis; mobile radio; shielding; CST Microwave Studio; EM absorption reduction; Helix; ferrite material; finite-difference time-domain method; lossy-drude model; mobile phone applications; power conservation; shielding material; shielding sheet; specific absorption rate; Absorption; Electromagnetics; Ferrites; Humans; Magnetic heads; Telephone sets; FDTD method; SAR; antenna; human head model; shielding materials;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical, Control and Computer Engineering (INECCE), 2011 International Conference on
Conference_Location :
Pahang
Print_ISBN :
978-1-61284-229-5
Type :
conf
DOI :
10.1109/INECCE.2011.5953842
Filename :
5953842
Link To Document :
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