What is BS IEC/IEEE 62704-3- SAR calculations of mobile phones about?
BS IEC/IEEE 62704-3 is a safety standard on determining the peak spatial-average specific absorption rate (SAR) in the human body from wireless communications devices.
BS IEC/IEEE 62704-3 defines the concepts, techniques, benchmark phone models, validation procedures, uncertainties, and limitations of the finite difference time domain (FDTD) the 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 pre-compliance assessment of mobile phones, in the frequency range from 30 MHz to 6 GHz.
BS IEC/IEEE 62704-3 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. BS IEC/IEEE 62704-3 defines acceptable modelling requirements, guidance on meshing, and test positions of the mobile phone and the phantom models.
Note 1: BS IEC/IEEE 62704-3 does not recommend specific SAR limits since this is found in other documents, e.g., IEEE C95.1-2005[1]2 and ICNIRP [2].
Note 2: It is not the intent of BS IEC/IEEE 62704-3 to provide a result representative of the absolute maximum SAR value possible under every conceivable combination of the human body and mobile phone usage.
Who is BS IEC/IEEE 62704-3- SAR calculations of mobile phones for?
BS IEC/IEEE 62704-3 on specific requirements for SAR calculations of mobile phones is relevant to:
- Electromagnetic engineers
- Electrical and electronic engineers
- Electricians
- Manufacturers of wireless communication devices
- Manufacturers of multi-input multi-output communication devices
- Power density personnel
- Testing authorities of specific absorption rate (SAR)
- Suppliers of antennas
Why should you use BS IEC/IEEE 62704-3- SAR calculations of mobile phones?
Computational techniques have reached a level of maturity that allows their use in the pre-compliance assessments of wireless communication devices such as mobile phones. For example, pre-compliance testing is important for mobile phone manufacturers in their product development phase where BS IEC/IEEE 62704-3 is applied.
BS IEC/IEEE 62704-3 benefits the users and the regulators that include standardized and accepted protocols, anatomically correct body models, validation techniques, benchmark results, reporting format, and means for estimating the computational uncertainty to produce valid, accurate, repeatable, and reproducible data. The results obtained by following the protocols specified in BS IEC/IEEE 62704-3 represent a conservative estimate of the peak spatial-average SAR induced in the standard human body models due to mobile phones. The protocols set forth herein produce results subject to modeling, simulations, and other uncertainties that are defined in BS IEC/IEEE 62704-3. The following items are described in detail: simulation concepts, simulation techniques, finite difference time domain (FDTD) numerical method, benchmark results, standardized numerical models of the human body. Procedures for validating the numerical tools used for SAR simulations and assessing the SAR simulation uncertainties are provided. BS IEC/IEEE 62704-3 is intended primarily for use by engineers and other specialists who are familiar with electromagnetic (EM) theory, numerical methods, and FDTD techniques.
Overall, BS IEC/IEEE 62704-3 is useful as it assists with a series of validation test setups that are defined to provide a means to validate the antenna model to be employed in the FDTD simulations. These setups are suitable for implementation either experimentally or numerically to provide reference solutions in the antenna near-field regions.
