型建模及其对单极与螺旋天线手机辐射特性影响的比较  

Human Body Modeling and Comparison of its Effects upon Radiation Characteristics of Monopole and Helical Handset Antennas

作　　者：周晓明[1] 赖声礼[1] 

机构地区：[1]华南理工大学电子与信息工程学院

出　　处：《中国生物医学工程学报》2005年第4期403-407,共5页Chinese Journal of Biomedical Engineering

基　　金：国家自然科学基金资助(60071033);广东省自然科学基金资助项目(990587);华南理工大学自然科学青年基金资助项目(123E5040920)

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。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.

关 键 词：手机辐射 人体模型FDTD建模 天线辐射方向图 

分 类 号：R318.03[医药卫生—生物医学工程] TN820.1[医药卫生—基础医学]