无线通信设备的电磁辐射测量与分析
Measurement and Analysis of the Electromagnetic Radiation of Wireless Communication Devices
刘升光 1李宏升 1王真厚 2陈白雨 2平步云 2张华雨2
作者信息
- 1. 青岛理工大学 理学院,山东 青岛 266520
- 2. 大连理工大学 物理学院,辽宁 大连 116024
- 折叠
摘要
利用超宽带天线和射频功率计搭建了辐射功率测量系统,对生活中常见的手机、路由器、通信基站等无线通信设备的辐射功率进行了测量和分析,探究了它们的电磁辐射模式特征和衰减规律.研究结果表明,无线设备产生的辐射会随距离增大而迅速衰减,手机在距离 20 cm、无线路由器在距离达到 2m后已经接近环境的背景水平;无线通信设备在设计时充分考虑了对人体的影响,避开了人体的主要吸收波段.最后根据研究结果提出了规避电磁辐射的建议.
Abstract
A radiated power measurement system was constructed by using ultra-wideband antenna and digital radio frequency wattmeter.The radiated power of communication devices including smart phone,wireless router,telecommunication base station,etc.which are quite common in daily life was measured and analyzed,and their electromagnetic radiation pattern characteristics and attenuation laws with distance were explored.The research results show that the radiated power generated by wireless devices will attenuate rapidly as the distance increases.The radiated power is close to the environment level when the mobile phone is 20 cm away and the wireless router is 2 m away.The issue of the negative impact on human body by electromagnetic radiation is fully considered in the design of wireless communication equipment,and the major absorption band of human body is avoided.Finally,several suggestions are put forward to avoid the influence from radio frequency radiation as much as possible.
关键词
超宽带天线/射频功率计/辐射功率/手机/Wi-FiKey words
ultra-wideband antenna/radio frequency power meter/radiation power/smartphone/Wi-Fi引用本文复制引用
出版年
2024
NETL
NSTL
万方数据