摘要
手机的辐射对人脑的影响一直是人们关注的话题。首先建立手机辐射的电磁模型和人体头部电磁模型,利用FDTD法在900 MHz工作频率下模拟计算了人体与天线手机系统的辐射,并分析手机辐射对人体的影响。研究发现:在靠近人体模型一侧,人体模型内部,电场的减小速度较磁场明显;手机约有40.4%的幅射能量被人体模型吸收,其中头部吸收的电磁能量占总吸收能量的54.4%。
Scientists pay more attention to the radiation effect on human head. In this paper, first the electromagnetic models of cellular phone and human head are established, then the Finite Difference Time Domain（FDTD） method is used to calculate the electromagnetic field distribution around the transceiver and human model,and the energy absorption inside the human model at frequency 900 MHz. It is found that the electromagnetic fields are largely decreased when the human model compared with those which without it, especially in the areanear human model. It is also found that energy is absorbed by the human model is about 40.4% of the t ransceiver radiation energy. The head absorbs 54.4% of the total energy.
出处
《现代电子技术》
2006年第18期11-12,15,共3页
Modern Electronics Technique
关键词
手机辐射
时域有限差分法
比吸收率
电磁模型
handset radiation
finite difference time domain method
specific absorption rate
electromagnetic model
