IEEE P62704-3/D3, 2016

P62704-3/D3, 2016 is a technical standard for estimating average specific absorption rate (SAR) in the human body from wireless communications devices operating from 30 MHz to 6 GHz. It focuses on Part 3 requirements for using the finite difference time domain (FDTD) method to calculate SAR for mobile phones. This makes the document relevant to RF safety analysis, numerical modeling, and compliance work where consistent SAR results are needed.

What is P62704-3/D3, 2016?

P62704-3/D3, 2016 defines specific requirements for applying the finite difference time domain (FDTD) method to SAR calculations for mobile phones. In the context of fields, waves, and electromagnetics, it supports a structured approach to modeling how RF energy is absorbed by the human body. The standard is intended to improve consistency in computational evaluation and to help align SAR assessment methods across engineering and test workflows. As an inactive standard, it is mainly of interest for reference and legacy comparison.

Where is P62704-3/D3, 2016 used?

This standard is typically used in RF engineering and electromagnetic safety analysis for mobile phones and related wireless communications devices. It is relevant when teams perform numerical SAR simulations, validate device layouts, or compare results from FDTD-based human exposure models. Laboratories, design groups, and compliance engineers may use P62704-3/D3, 2016 when working with handset prototypes, antenna integration studies, and documentation that supports exposure assessment over the 30 MHz to 6 GHz range.

Why is P62704-3/D3, 2016 important?

P62704-3/D3, 2016 matters because SAR evaluation depends on repeatable methods and clearly defined calculation requirements. For mobile devices, small modeling differences can affect exposure results, so a specific FDTD framework helps reduce ambiguity in testing and design review. The standard can support more consistent technical decisions, better traceability in compliance documentation, and lower risk of mismatched results between laboratories or simulation teams. It is especially useful where accurate RF exposure assessment is part of product qualification.

• FDTD method requirements for SAR calculation
• Mobile phone exposure assessment
• 30 MHz to 6 GHz operating range
• Average SAR in the human body
• RF safety and compliance reference