In this paper, external electric field values that are derived from the largest peak average 10 g SAR (Specific Absorption Rate) results in a realistic human head model are compared with current IEEE and ICNIRP reference levels. The head is illuminated by a plane wave source at seven different frequencies ranging from 500 MHz to 2500 MHz, with five different incident directions and three polarizations. Results reveal that the presence of metallic wire spectacles reduces the external electric field levels in the region above 900 MHz. Comparison of derived electric field values shows that the current IEEE and ICNIRP safety limits provide a conservative estimate.

中文翻译：

---

平面波暴露 (500–2500 MHz) 人体头部模型的 SAR 变化以及与 IEEE 2005 安全限值的比较

在本文中，将根据真实人体头部模型中的最大峰值平均 10 g SAR（比吸收率）结果导出的外部电场值与当前的 IEEE 和 ICNIRP 参考水平进行了比较。头部由平面波源照明，频率范围从 500 MHz 到 2500 MHz，具有五种不同的入射方向和三种极化。结果表明，金属丝眼镜的存在降低了 900 MHz 以上区域的外部电场水平。导出电场值的比较表明，当前的 IEEE 和 ICNIRP 安全限制提供了一个保守的估计。