NDLI: Fast assessment of SAR in SAM phantom exposed to a handset antenna

Content Provider	IEEE Xplore Digital Library
Author	Lei Zhao Dong-Fang Liu Wenhua Yu
Copyright Year	2012
Description	Author affiliation: COMU, State College, PA 16803, USA (Wenhua Yu) \|\| Center for Computational Science and Engineering, School of Mathematical Sciences, Xuzhou Normal University, China (Lei Zhao; Dong-Fang Liu)
Abstract	Since the diversification of the electromagnetic (EM) environment is spreading, it is essential to estimate the EM energy absorption rate (SAR) of human's body especially human's head under various exposure situations. A novel method is presented that accurately and quickly estimates the SAR in a specific anthropomorphic mannequin (SAM) phantom by using SAR in a double layered prolate head model with a compensating function. Comparison of SAR induced in a double layered prolate head model and a specific SAM head model was investigated firstly, and the systematic biases resulting from shape effect of the SAM and prolate head model is obtained in different position cases. Then a hybrid Null Field Method / Method of Moments (NFM/MoM) approach is used to analysis EM problem for a double layered prolate head model exposed to a handset antenna. By means of the hybrid approach, the MoM is applied to a handset antenna, and the NFM is used to model the scattering problem from the head model. The electromagnetic coupling between the head model and an antenna is taken into account by a fast convergent iteration process. The numerical results show that the proposed method is able to estimate SAR in SAM head model within an error ±6% for dual band PIFA antenna, which indicate the possibility to quickly assess electromagnetic radiation to human head using double layered prolate model.
Starting Page	1
Ending Page	4
File Size	966228
Page Count	4
File Format	PDF
ISBN	9781467321846
e-ISBN	9781467321853
DOI	10.1109/ICMMT.2012.6230474
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-05
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Antennas Phantoms Moment methods Telephone sets Computational modeling Numerical models Humans
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Peak SAR reduction in human head for handset applications with resistive sheets (R-cards)

Measurements of internal handset antennas and diversity configurations with a phantom head

Analysis of head-phantom dimensional and shape relative errors in wireless handset specific absorption rate (SAR) compliance assessment

Comparison of specific absorption rate induced in prolate head model and SAM phantom exposed to a dipole antenna

Evaluation of the error induced by an incorrect positioning of the handset against the SAM phantom for SAR calculations

3D-radiation measurements of a handset diversity antenna close to a realistic human phantom in a PDA situation

Performance analysis of a planar inverted-F antenna (PIFA) including human interaction

FDTD handset antenna modelling at 1800 MHz for electrical performance and SAR results

UHF handset monopole antenna designed for SAR compliance

Fast assessment of SAR in SAM phantom exposed to a handset antenna

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