# SAR Standards

Feko makes use of a local peak SAR algorithm.

The methodology in Feko for the computation of the
spatial-average SAR of a cube at a given location is based on the recommendations by
CENELEC^{1}
and the IEEE^{2}^{3}. Feko cannot follow the standards literally for MoM and FEM
calculations since they have been written for SAR calculations with an FDTD code. As
a result, a local peak SAR algorithm was developed for Feko which is similar and has the same goals as the algorithm
proposed in P1528.1^{4}, and also takes the intentions of P1528.1, ICNIRP
and the IEEE (when they set the basic restrictions) into account.

^{1}CENELEC,“Basic Standard for the Measurement of Specific Absorption Rate Related to Human Exposure to Electromagnetic Fields from Mobile Phones (300 MHz--3 GHz),” Tech. Rep. EN 50 361, July 2001.

^{2}IEEE C95.3-2002, IEEE recommended practice for measurements and computations of radio frequency electromagnetic fields with respect to human exposure to such fields, 100 kHz-300 GHz, (Revision of IEEE C95.3-1991), January, 13th 2003.

^{3}IEEEP1529/D0.0, “Draft Recommended Practice for Determining the Spatial-Peak Specific Absorption Rate (SAR) Associated with the Use of Wireless handsets -- Computational Techniques,” IEEE Standards Coordinating Committee 34, Subcommittee 2, 2002

^{4}IEEEP1528.1TM/D1.0“Draft Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Body from Wireless Communications Devices, 30 MHz - 6 GHz: General Requirements for using the Finite Difference Time Domain (FDTD) Method for SAR Calculations”, Prepared by the Working Group 2 of the TC34/SC2 Committee, January 2007.