IEEE P62704-1/D3, 2025
IEEE/IEC International Draft Standard for Determining the Peak Spatial Average Specific Absorption Rate (SAR) in the Human Body from Wireless Communications Devices, 30 MHz to 6 GHz. Part 1: General Requirements for using the Finite Difference Time Domain (FDTD) Method for SAR Calculations
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About This Item
IEEE P62704-1/D3, 2025 is an IEEE/IEC International Draft Standard for determining the peak spatial average specific absorption rate (SAR) in the human body from wireless communications devices operating from 30 MHz to 6 GHz. It is aimed at fields, waves and electromagnetics, with clear relevance to bioengineering and engineering practice. By defining how SAR calculations should be approached, IEEE P62704-1/D3, 2025 helps support consistent evaluation of exposure-related performance for device design, analysis, and verification.
Overview of IEEE P62704-1/D3, 2025
This draft standard sets general requirements for using the Finite Difference Time Domain (FDTD) method in SAR calculations. It focuses on a technical framework for estimating peak spatial average SAR in human-body models when wireless communications devices are used in the stated frequency range. IEEE P62704-1/D3, 2025 is relevant where repeatable electromagnetic computation is needed to compare results, align internal engineering methods, and support structured assessment of device-related exposure calculations.
Typical use cases
IEEE P62704-1/D3, 2025 is typically used in engineering workflows that model wireless devices near the human body, especially when FDTD simulations are used to estimate localized absorption. It may be applied to handsets, wearables, or similar communications equipment during development and validation. The standard is also useful for laboratories and design teams that need a common calculation basis for SAR studies, numerical testing, and documentation tied to electromagnetic exposure analysis.
Why it matters
For organizations working with wireless device exposure assessments, this draft standard helps improve consistency in SAR calculation methods and reduces ambiguity in technical comparisons. IEEE P62704-1/D3, 2025 can support better design control, more reliable testing practices, and clearer communication between engineering, compliance, and review teams. In practice, that matters when results must be repeatable, defensible, and suitable for structured evaluation of human-body exposure from devices operating across the defined frequency range.
- Peak spatial average SAR calculation guidance
- FDTD-based electromagnetic analysis
- Wireless device exposure assessment
- Human-body modeling requirements
- 30 MHz to 6 GHz operating range
- Publication Date: 2025
- Standard Status: Active
- Publisher: IEEE
- Subject: Fields, Waves and Electromagnetics; General Topics for Engineers; Bioengineering
- Official IEEE: Doi link
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