5G手机的电磁暴露评估:多层人头模型中的SAR和热分布
Dengpeng Chen1, Bingtao Zhang2
1School of Electronic Information, Xi'an Railway Vocational & Technical Institute, Xi'an 710014, China.
Sensors (Basel, Switzerland)
|March 14, 2026
概括
在人类头部模型中模拟了5G手机辐射暴露. 发现特定吸收率 (SAR) 和温度增加远低于安全限值,表明5G设备没有显著的热风险.
科学领域:
- 生物电磁学 生物电磁学
- 无线通信安全无线通信安全.
背景情况:
- 关于5G电磁辐射对健康的潜在影响,公众存在担忧.
- 评估特定吸收率 (SAR) 和温度分布对于移动设备安全至关重要.
研究的目的:
- 评估多层球形头模型中的SAR和温度分布,暴露在5G手机辐射中.
- 确定是否符合国际安全标准 (ICNIRP).
主要方法:
- 在智能手机模型中使用COMSOL Multiphysics 6.3与5G PIFA天线进行模拟.
- 在不同输入功率 (21-24 dBm) 和天线头距离 (5-30 mm) 的球形头模型中进行暴露评估.
主要成果:
- 峰值大脑SAR值明显低于ICNIRP极限 (0.034-0.065W/kg与2W/kg相比).
- 暴露30分钟后,大脑温度的最大升高是最小的 (37.223°C).
- 增加天线头距离将SAR降低高达50.2%,温度变化微不足道.
结论:
- 在典型的使用条件下,5G手机辐射符合国际安全标准.
- 没有发现任何显著的热风险,支持5G技术的安全性.
- 这些发现有助于理解生物电磁相互作用和无线通信安全评估.
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