【摘要】 基于矩量法,分析了三维各向同性介质的散射问题。并以此为基础,研究了反映各向同性介质在电磁场下热效应的参数-比吸收率(SAR)。针对实际手机使用中的辐射问题,给出了一个简单模型下的SAR数值仿真结果,并与IEEE标准作了比较,提出了具体的安全距离建议。最后,比较了矩量法,时域有限差分法,有限元法在手机天线辐射研究中的优缺点。更多还原

【Abstract】 3-D isotropic medium’s scattering problems is analyzed based on MoM,and SAR which is typically character of isotropic medium’s thermal effect under electromagnetic field is also studied.For the radiation problem of cell phone in real life,a SAR simulation result is given based on a simple model,and is compared with the IEEE standards.A safety distance between cell phone and brain is suggested.Finally,MoM,FDTD & FEM which are used in radiation problem of cell phone’s antenna are compared.更多还原