The effects of metamaterial on electromagnetic fields absorption characteristics of human eye tissues.
The interaction of a dipole antenna with a human eye model in the presence of a metamaterial is investigated in this paper. The finite difference time domain (FDTD) method with convolutional perfectly matched layer (CPML) formulation have been used. A three-dimensional anatomical model of the human eye with resolution of 1.25 mm × 1.25 mm × 1.25 mm was used in this study. The dipole antenna was driven by modulated Gaussian pulse and the numerical study is performed with dipole operating at 900 MHz. The analysis has been done by varying the size and value of electric permittivity of the metamaterial. By normalizing the peak SAR (1 g and 10 g) to 1 W for all examined cases, we observed how the SAR values are not affected by the different permittivity values with the size of the metamaterial kept fixed.
Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Johor bahru, 8130 Skudai, Malaysia; Dept. of Biomedical Eng, Faculty of Engineering, Future University, 10553 Khartoum, Sudan. Electronic address: mecmsc@yahoo.com.
Akram
A
Gasmelseed
Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Johor bahru, 8130 Skudai, Malaysia.
Jasmy
J
Yunus
D065638:Absorption, Radiation; D004574:Electromagnetic Fields; D005123:Eye / Q000033:anatomy & histology / Q000166:cytology* / Q000528:radiation effects*; D006801:Humans; D008953:Models, Anatomic; D055620:Optical Phenomena
Electromagnetic radiation effects; Finite difference time domain (FDTD) method; Metamaterials