IEC/IEEE 62704的这一部分定义了时域有限差分（FDTD）技术在确定暴露于已知不确定性无线通信设备的人体内的峰值空间平均比吸收率（SAR）时的应用方法。它定义了验证被测设备（DUT）数值模型的方法，以及在SAR模拟中使用时评估其不确定性的方法。此外，它还定义了确定立方体体积中峰值空间平均SAR的程序，并验证FDTD仿真软件的正确实现。 适用的频率范围为30 MHz至6 GHz。交叉引用:IEC 62209-1IEE标准1528IEC 60050（所有部分）IEC TR 620IEEE标准C95。3-2002EEE标准C95。1-2005 IEEE Std 145-1993IEC 62209-2购买时可用的所有现行修订版均包含在购买本文件中。

This part of IEC/IEEE 62704 defines the methodology for the application of the finite-difference time domain (FDTD) technique when used for determining the peak spatial-average specific absorption rate (SAR) in the human body exposed to wireless communication devices with known uncertainty. It defines methods to validate the numerical model of the device under test (DUT) and to assess its uncertainty when used in SAR simulations. Moreover, it defines procedures to determine the peak spatial-average SAR in a cubical volume and to validate the correct implementation of the FDTD simulation software. The applicable frequency range is 30 MHz to 6 GHz.Cross References:IEC 62209-1IEEE Std 1528IEC 60050 (all parts)IEC TR 62630IEEE Std C95.3-2002IEEE Std C95.1-2005IEEE Std 145-1993IEC 62209-2All current amendments available at time of purchase are included with the purchase of this document.