| Summary: | 碩士 === 元智大學 === 通訊工程學系 === 93 === In this thesis, the far field and the near field Finite-Difference Time-Domain (FDTD) methods are used to study (Specific Absorption Rate, SAR) induced in human bodies wearing clothes exposed to electromagnetic waves irradiated from wireless communication facilities such as base stations and wireless notebooks.
In the far field and the near field FDTD simulations, the multiple-grid technique and the equivalent material theory are implemented in the formal FDTD method in order to improve the computation efficiency and to save the computer memory, respectively. In this study, human bodies are adopted to be a homogeneous material of muscle tissue. From research results, it is found that the induced SAR in human bodies is far less than the international safety regulation of 1.6 W/kg for clothing materials with dielectric constants of 2~30 and conductivities of S/m. It is also found that the shielding effect of clothing material is strongly related to frequency.
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