IEC/IEEE 62704-3:20 17定义了时域有限差分(FDTD)技术的概念、技术、基准电话模型、验证程序、不确定性和局限性，该技术用于确定暴露于由无线通信设备产生的电磁场的标准化头部和身体体模中的峰值空间平均比吸收率(SAR)，特别是移动电话的预符合性评估，频率范围为30MHz至6GHz。它建议并提供了关于移动电话数值建模和基准结果的指导，以验证此类设备数值模拟的一般方法。它定义了可接受的建模要求、移动电话和幻像模型的网格划分和测试位置指南。本文件不推荐特定的SAR限值，因为这些限值见于其他文件，例如IEEE C95.1-2005和ICNIRP 关键词:手机，空间平均比吸收率，时域有限差分，人体

IEC/IEEE 62704-3:2017 defines the concepts, techniques, benchmark phone models, validation procedures, uncertainties and limitations of the finite difference time domain (FDTD) technique when used for determining the peak spatial-average specific absorption rate (SAR) in standardized head and body phantoms exposed to the electromagnetic fields generated by wireless communication devices, in particular pre-compliance assessment of mobile phones, in the frequency range from 30 MHz to 6 GHz. It recommends and provides guidance on the numerical modelling of mobile phones and benchmark results to verify the general approach for the numerical simulations of such devices. It defines acceptable modelling requirements, guidance on meshing and test positions of the mobile phone and the phantom models.
This document does not recommend specific SAR limits since these are found in other documents, e.g. IEEE C95.1-2005 and ICNIRP
Key words: Mobile Phone, Spatial-Average Specific Absorption Rate, Finite-Difference Time-Domain, Human Body