太空电站充电时基于真实手臂模型的SAR分析  

SAR analysis based on real arm model during wireless charging of space solar power station

作　　者：梁琰 于新华[1] 陆路聪 莫锦军 王宜颖 LIANG Yan;YU Xinhua;LU Lucong;MO Jinjun;WANG Yiying(School of Information and Communication,Guilin University of Electronic and Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学信息与通信学院,桂林541004

出　　处：《空间电子技术》2024年第3期27-32,共6页Space Electronic Technology

摘　　要：空间太阳能电站所提供的将是高功率的电磁能量,在执行无线供电的过程中,将会在被供电设备上再次激励起不同频率的电磁波,对人体健康产生一定的威胁。对于低频的电磁波可以将人体整体等效为一个简易模型,分析电磁波对人体健康的影响。但是,当频率逐渐升高,其波长将和人体的局部组织尺寸可比拟,此时必须采用真实的人体模型才能更精确地分析电磁波对人体的影响。为此,文章研究5.8GHz频率下,基于真实手臂模型的比吸收率。利用平面波照射真实手臂模型,分析手臂表面以及透射到各个关键局部区域体积内的SAR值,可为高频率情况下电磁波对人体健康的影响提供一定的参考。The electromagnetic energy provided by the space solar power station will be high-power,the charged devices will re-excite different-frequency electromagnetic waves in the charging process,then producing a certain threat to human health.For the low-frequency electromagnetic waves,the whole human body can be equivalent to a simple model to analyze the impact of electromagnetic waves on human health.However,as the frequency increases to GHz,the wavelength becomes comparable to the dimensions of local human tissues so that a realistic human body model has to be used to get the more accurate analyses of the related effects.Therefore,this study focuses on SAR analyses for the 5.8 GHz which based on a real arm model.The plane wave is used to illuminate the real arm model,consequently study the SAR values on the arm s surface as well as the in-arm SAR values penetrating into various critical local regions in order to provide references for impact analyses of high-frequency scenarios.

关 键 词：空间太阳能电站 无线能量传输 真实手臂模型 比吸收率 健康影响分析 

分 类 号：V443[航空宇航科学与技术—飞行器设计] TN929.5[电子电信—通信与信息系统]