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  • IEC/IEEE 62704-1:2017

    Current The latest, up-to-date edition.

    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

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English

    Published date:  26-10-2017

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Abbreviated terms
    5 Finite-difference time-domain method - basic
      definition
    6 SAR calculation and averaging
    7 SAR simulation uncertainty
    8 Code verification
    Annex A (normative) - Fundamentals of the FDTD
            method
    Annex B (normative) - SAR Star
    Annex C (informative) - Practical considerations for
            the application of FDTD
    Annex D (informative) - Background information on
            tissue modelling and anatomical models
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC/IEEE 62704-1:2017(E) 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.
    This document does not recommend specific SAR limits since these are found elsewhere, for example, in the guidelines published by the International Commission on Non-Ionizing Radiation Protection (ICNIRP) [1] or in IEEE Std C95.1 [3].
    Key words: Spatial-Average Specific Absorption Rate, Finite-Difference Time-Domain, Human Body

    General Product Information - (Show below) - (Hide below)

    Committee TC 106
    Development Note Jointly published by IEC & IEEE. Stability Date: 2020. (10/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS IEC/IEEE 62704-2 : 2017 DETERMINING THE PEAK SPATIAL-AVERAGE SPECIFIC ABSORPTION RATE (SAR) IN THE HUMAN BODY FROM WIRELESS COMMUNICATIONS DEVICES, 30 MHZ TO 6 GHZ - PART 2: SPECIFIC REQUIREMENTS FOR FINITE DIFFERENCE TIME DOMAIN (FDTD) MODELLING OF EXPOSURE FROM VEHICLE MOUNTED ANTENNAS
    IEC/IEEE 62704-2:2017 Determining the peak spatial-average specific absorption rate (SAR) in the human body from wireless communications devices, 30 MHz to 6 GHz - Part 2: Specific requirements for finite difference time domain (FDTD) modelling of exposure from vehicle mounted antennas
    13/30276628 DC : 0 BS EN 62704-3 ED 1.0 - DETERMINING THE PEAK SPATIAL-AVERAGE SPECIFIC ABSORPTION RATE (SAR) IN THE HUMAN BODY FROM WIRELESS COMMUNICATIONS DEVICES; 30 MHZ - 6 GHZ - PART 3: SPECIFIC REQUIREMENTS FOR USING THE FINITE-DIFFERENCE TIME-DOMAIN (FDTD) METHOD FOR SAR CALCULATIONS OF MOBILE PHONES
    13/30276620 DC : 0 BS EN 62704-2 ED 1.0 - DETERMINING THE PEAK SPATIAL-AVERAGE SPECIFIC ABSORPTION RATE (SAR) IN THE HUMAN BODY FROM WIRELESS COMMUNICATIONS DEVICES 30MHZ - 6MHZ - PART 2: SPECIFIC REQUIREMENTS FOR FINITE DIFFERENCE TIME DOMAIN (FDTD) MODELING OF EXPOSURE FROM VEHICLE MOUNTED ANTENNAS
    IEC TR 62905:2018 Exposure assessment methods for wireless power transfer systems
    IEC/IEEE 62704-3:2017 Determining the peak spatial-average specific absorption rate (SAR) in the human body from wireless communications devices, 30 MHz to 6 GHz - Part 3: Specific requirements for using the finite difference time domain (FDTD) method for SAR calculations of mobile phones

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 62209-2:2010 Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices - Human models, instrumentation, and procedures - Part 2: Procedure to determine the specific absorption rate (SAR) for wireless communication devices used in close proximity to the human body (frequency range of 30 MHz to 6 GHz)
    IEC 62209-1:2016 Measurement procedure for the assessment of specific absorption rate of human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices - Part 1: Devices used next to the ear (Frequency range of 300 MHz to 6 GHz)
    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
    IEEE 1528-2013 REDLINE IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques
    IEC TR 62630:2010 Guidance for evaluating exposure from multiple electromagnetic sources
    IEEE C95.1-2005 IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz
    IEEE 145-2013 REDLINE IEEE Standard for Definitions of Terms for Antennas
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