射频传输系统中人体模型电磁场分析  

Electromagnetic Field Analysis of Human Model in RF Transmission System

作　　者：尤丽萍 YOU Li-ping(School of Electronic and Communication Engineering, Quanzhou University of Information Engineering, Quanzhou Fujian 362000, China)

机构地区：[1]泉州信息工程学院电子与通信工程学院,福建泉州362000

出　　处：《淮阴工学院学报》2021年第5期35-40,91,共7页Journal of Huaiyin Institute of Technology

摘　　要：为弥补传统射频传输系统中利用真实人体进行实验的局限性,提出了一种平面六边形的简化人体模型。使用商用软件FEKO对天线和无线电力传输系统进行数值建模,将人体模型简化为平行六面体或椭圆柱体,分析了系统在13.56,6.78和0.1 MHz频率下的功率传输效率(PTE)和比吸收率(SAR)。结果表明,简化人体模型中的比吸收率未超过国际标准规定的极限值。最后,通过与前人在13.56 MHz处的实际人体模型结果进行比较,验证了所使用简化模型的有效性。In order to make up for the limitation of using real human body in traditional RADIO frequency transmission system,a simplified planar hexagon human body model is proposed.Numerical modeling of antenna and wireless power transmission system was carried out using commercial software FEKO.In the simulation modeling,the human body model was simplified as parallelismor ellipticcylinder,and the power transmission efficiency(PTE)and specific absorption rate(SAR)of the system were analyzed at 13.56,6.78 and 0.1 MHz frequencies.The calculated results show that the specific absorption rate of the simplified human body model does not exceed the limit of the international standard.Finally,the effectiveness of the simplified model is verified by comparing with the results of the previous human model at 13.56 MHz.

关 键 词：人体简化模型 功率传输效率 比吸收率 无线电力传输 

分 类 号：Q684[生物学—生物物理学]