CAJ | 학술논문

　　该文采用基于有限积分法(FIT)的3D电磁(EM)仿真工具以及源于男性活体CT及MRI切片图像构建的3维人体电磁模型，分析研究2.5~6.0 GHz电磁波在人体内的路径损耗及比吸收率(SAR)特性，考察该频段信号在人体内外通信的有效性并建立相应的信道数学模型。分析结果表明：采用2.5~6.0 GHz频段信号实现人体植入式生物医学电子设备无线通信是可行的、安全的；所建立的改进型幂律函数信道模型能较好地描绘该频段信号在人体内的路径损耗特性，在2.5 GHz 和6.0 GHz频率处信道模型与电磁计算结果的均方根误差(RMSE)分别为2.78 dB和8.30 dB。
　　해문채용기우유한적분법(FIT)적3D전자(EM)방진공구이급원우남성활체CT급MRI절편도상구건적3유인체전자모형，분석연구2.5~6.0 GHz전자파재인체내적로경손모급비흡수솔(SAR)특성，고찰해빈단신호재인체내외통신적유효성병건립상응적신도수학모형。분석결과표명：채용2.5~6.0 GHz빈단신호실현인체식입식생물의학전자설비무선통신시가행적、안전적；소건립적개진형멱률함수신도모형능교호지묘회해빈단신호재인체내적로경손모특성，재2.5 GHz 화6.0 GHz빈솔처신도모형여전자계산결과적균방근오차(RMSE)분별위2.78 dB화8.30 dB。
To validate the validity of in human body communication in 2.5~6.0 GHz signal, the path loss characteristic and Specific Absorption Rate (SAR) are investigated by using a 3D ElectroMagnetic (EM) simulator based on Finite Integration Technique (FIT) and a high-resolution 3D electromagnetic model of human body based on CT and MRI segmented images taken from living human males. A numerical statistical model for path loss characteristic is presented. Experiment results substantiate the feasibility and security of human body implant communication in 2.5~6.0 GHz band, and a modificatory classical power law function can well characterize the distance dependent path loss for inside body, the Root-Mean-Square Error (RMSE) of EM simulation and numerical model calculation results is 2.78 dB and 8.30 dB at 2.5 GHz and 6.0 GHz, respectively.