超宽带纽扣式天线与人体之间的相互影响研究

Research on the interaction between the UWB button antenna and human body

提出了一种新型的纽扣式超宽带天线,在给出其辐射性能的基础上,研究了天线与人体之间的相互影响,在不同工作频率下分析了天线安装在人体不同部位时天线性能的变化规律,仿真了人体大脑和躯干对天线辐射场的吸收辐射率情况,仿真和实测结果表明:设计天线在人体附近工作时,辐射性能受到人体影响较小,同时天线辐射对人体的影响符合国际非电离辐射防护委员会的标准,适用于以人体为中心的通信系统.

A novel UWB button antenna was proposed.The interaction between the UWB button antenna and human body was discussed based on its radiation performance.When the antenna was placed on the different parts of the human body,its performance with different frequency was studied.The simulation about the specific absorption rate(SAR)was done for learning the effect of the antenna on the brain and torso in the different frequency.The simulated and measured results show that the performance of the antenna changes little,when it works near the human body.The effect of the antenna on the human body meets the requirements of International Commission on Non-Ionizing Radiation Protection.The antenna is suitable for body-centric wireless communications systems.