IEC/IEEE 63195-2:20 22规定了由于射频(RF)电磁场(EMF)发射设备而入射到人体头部或身体的功率密度(PD)的保守和可再现计算的计算程序。所描述的计算程序是时域有限差分(FDTD)和有限元方法(FEM)，它们是可用于通过在指定的计算不确定性内求解麦克斯韦方程来确定电磁量的计算技术。此处规定的程序适用于绝大多数人群在使用手持式和体戴式射频发射设备期间的暴露评估。所述方法适用于可以具有单个或多个发射器或天线的设备，并且可以在距离人的头部或身体高达200mm的距离处利用其辐射部分或多个部分操作。本文件可用于确定紧邻头部和身体使用的不同类型的RF发射设备是否符合任何适用的最大PD要求，包括与其他RF发射或非发射设备或附件（例如皮带夹）组合的设备或嵌入服装中的设备。这些协议和程序的总体适用频率范围为6GHz至300GHz。 本文档中涵盖的RF发射设备类别包括但不限于移动电话、个人计算机中的无线电发射器、台式和膝上型设备以及多频带和多天线设备。 本文件的程序不适用于预期植入体内的器械或物体发射或改变的电磁场的PD评估。笔记？为了评估频率低于6 GHz的同时发射器的组合暴露，SAR计算的相关标准是IEC/IEEE 62704-1:20 17和IEC/IEEE 62704-4:20 20。 本出版物作为IEC/IEEE双标识标准发布。

IEC/IEEE 63195-2:2022 specifies computational procedures for conservative and reproducible computations of power density (PD) incident to a human head or body due to radio-frequency (RF) electromagnetic field (EMF) transmitting devices. The computational procedures described are finite-difference time-domain (FDTD) and finite element methods (FEM), which are computational techniques that can be used to determine electromagnetic quantities by solving Maxwell’s equations within a specified computational uncertainty. The procedures specified here apply to exposure assessments for a significant majority of the population during the use of hand-held and body-worn RF transmitting devices. The methods apply to devices that can feature single or multiple transmitters or antennas, and that can be operated with their radiating part or parts at distances up to 200 mm from a human head or body.
This document can be employed to determine conformity with any applicable maximum PD requirements of different types of RF transmitting devices used in close proximity to the head and body, including those combined with other RF transmitting or non-transmitting devices or accessories (e.g. belt-clip), or embedded in garments. The overall applicable frequency range of these protocols and procedures is from 6 GHz to 300 GHz.
The RF transmitting device categories covered in this document include but are not limited to mobile telephones, radio transmitters in personal computers, desktop and laptop devices, and multi-band and multi-antenna devices.
The procedures of this document do not apply to PD assessment of electromagnetic fields emitted or altered by devices or objects intended to be implanted in the body.
NOTE？For the assessment of the combined exposure from simultaneous transmitters at frequencies below 6 GHz, the relevant standards for SAR computation are IEC/IEEE 62704-1:2017 and IEC/IEEE 62704-4:2020.
This publication is published as an IEC/IEEE Dual Logo standard.