移动通信高频电磁波对人体的作用

Impact on Human Body Exposed to High-Frequency Communication Electromagnetic Wave

移动通信的便利,大大提高了人们的生活品质,但随之伴生的电磁环境改变对生态特别是人类的影响便受到极大关注。为了解移动通信高频电磁波对人体的作用效果,就有必要定量计算在一定强度和频率下电磁场在人体内的分布和吸收情况。本文建立了一种较为接近实际的人体内分布电磁场仿真计算模型,在此基础上,借助于时域有限差分法,对不同频率下的移动通信电磁波照射人体后的比吸收率进行了计算和分析。结果表明,不同的组织器官由于其电磁参数不同而对电磁波有不同的吸收。本文的工作可为有效研究高频电磁波对人体的影响提供依据。

With the spread of mobile telecommunication, the changing of electromagnetic environment and the effect to human being are concerned recently. In order to investigate the impact of communication electromagnetic field striking on human body, it is necessary to compute the distribution and absorbability in human body in certain intensity at different frequencies. In this paper, a precise body model is established for studying the impact of electromagnetic wave. On the basis of this model and using the finite-difference time-domain method, the specific absorption rates are computed and analysed at different frequencies. The results show that the absorbability of main tissues in human body is different because of the different electromagnetic parameters. The work in this paper is valuable for the study of the impact of electromagnetic wave on the human body at high frequency efficiently.