手机无线充电状态下的电磁辐射测量方法探讨  

Discussion on RF Exposure Measurement Method of Mobile Phone in Wireless Charging State

作　　者：林军 赵竞 林晓军 齐殿元 Lin Jun;Zhao Jing;Lin Xiaojun

机构地区：[1]中国信息通信研究院

出　　处：《安全与电磁兼容》2020年第4期43-46,共4页Safety & EMC

摘　　要：以受到广泛关注的手机无线充电技术电磁辐射问题为出发点,介绍了手机无线充电技术、手机无线充电状态下的电磁辐射限值要求,设计了一种适合手机无线充电状态下的电磁辐射测量方法,实测了手机正向、反向无线充电状态下的电磁辐射情况。实验数据分析表明,手机无线充电状态下的电磁辐射有超出限值的情形。From the perspective of radiofrequency (RF) exposure from wireless chargers,this paper introduces the wireless power transfer (WPT) technology and current regulatory requirements for human exposure to RF when using a wireless charger.In addition,a suitable approach for exposure assessment of WPT is proposed,and it has been employed to evaluate the RF exposure during both forward and reverse wireless charging.The experimental?results?demonstrate?that?the RF exposure of WPT devices may exceed?permissible?limits when in operation.

关 键 词：无线充电 手机无线充电 电磁辐射 电磁辐射测量 

分 类 号：O441[理学—电磁学] TN929.53[理学—物理]