【摘要】 本研究基于医学解剖学的核磁共振(MRl)技术,建立适合于应用时域有限差分法(FDTD)模拟手机辐射问题的人体几何电磁模型,通过与实验测量对比,验证了算法的可靠性,在900MHz工作频率下模拟计算了人体与单极天线和螺旋天线手机系统的辐射方向图,比较了人体模型对这两款手机天线辐射特性的影响。更多还原

【Abstract】 In this paper,the MRI geometry-electromagnetic human body model for simulating handset EM radiation with finite-difference-time-domain(FDTD) was built in the foundation of medical anatomy technology.The interaction between handset monopole and helical antennas and anatomically realistic human body model was discussed at frequency 900MHz.The feasibility of this method was proved through comparing with measured values.The effects on antenna’s radiation characteristics due to the presence of human body were also analyzed.更多还原