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SAR computation of a human head exposed to different mobile headsets using FDTD method

Aminzadeh, R ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. Publisher: 2012
  3. Abstract:
  4. Many standards are not considering Specific Absorption Rate (SAR) measurements with the use of mobile headsets.In this paper a simulation of mobile headset effects on a human head is done using FDTD-based platform, SEMCAD-X software.We designed two headset models with different case materials to observe their interaction with a Specific Anthropomorphic Mannequin (SAM) phantom as a human head model.Both headset models are installed in the left ear and the human head is rotated by 30±.As headset communicates via Bluetooth at the frequency of 2.4 GHz, we chose a suitable planar inverted F antenna (PIFA) to use with both the headset models.Spatial peak SAR values averaged over 1 g and 10 g for each model in both the environments and compared to each other.The results confirm that the value of SAR in a car is lower than free space due to the presence of dielectric materials in the car.We conclude that headset case material has a high impact on SAR changes in different environments
  5. Keywords:
  6. Free spaces ; High impact ; Human head ; Planar inverted-F antenna ; Specific absorption rate ; Specific anthropomorphic mannequins ; Antennas ; Computer simulation ; Dielectric materials ; Finite difference time domain method ; Electromagnetic field effects
  7. Source: Progress in Electromagnetics Research Symposium, 27 March 2012 through 30 March 2012 ; 2012 , Pages 1131-1134 ; 15599450 (ISSN) ; 9781934142202 (ISBN)
  8. URL: https://piers.org/piersproceedings/download.php?file=cGllcnMyMDEyS3VhbGFMdW1wdXJ8M0E1XzExMzEucGRmfDExMDkyMDA4MzYzNQ