SA/SNZ TS IEC 63446:2024
Conversion method of specific absorption rate to absorbed power density for the assessment of human exposure to radio frequency electromagnetic fields from wireless devices in close proximity to the head and body – Frequency range of 6 GHz to 10 GHz
Standard specifies a conversion method for the assessment of the peak spatial-average absorbed power density (psAPD) in the human head and body due to exposure to radio frequency (RF) electromagnetic fields (EMF) from wireless communication devices, with a specified conversion uncertainty. This conversion method is based on specific absorption rate (SAR) values and is specified with the objective to yield conservative and reproducible absorbed power density values of the exposure for a significant majority of the population during the use of hand-held, body-worn or any other RF transmitting communication devices that can operate in close proximity to a human head or body. This conversion method applies for devices that can feature single or multiple transmitters and/or antennas and can be operated with their radiating structure(s) at distances up to 200 mm from a human head or body.
This document is identical with, and has been reproduced from, IEC PAS 63446:2022, Conversion method of specific absorption rate to absorbed power density for the assessment of human exposure to radio frequency electromagnetic fields from wireless devices in close proximity to the head and body – Frequency range of 6 GHz to 10 GHz.
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SA/SNZ TS IEC 63446:2024 Conversion method of specific absorption rate to absorbed power density for the assessment of human exposure to radio frequency electromagnetic fields from wireless devices in close proximity to the head and body - Frequency range
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
4.1 Physical quantities
4.2 Constants
4.3 Abbreviations
5 Application of this document
6 APD conversion method by evaluation of the SAR distribution
7 Uncertainty estimation
7.1 Measurement uncertainty
7.2 Numerical uncertainty
8 Measurement and computational report
Annex A (informative) Rationale for conversion of psSAR into psAPD
Annex B (informative) Poynting vector and absorbed power density
Annex C (normative) Reference dipoles and psAPD values for system check and validation
Annex D (normative) Supplemental files and their checksums
Bibliography
Figure C.1 — Mechanical details of the standard dipoles
Table 1 — Conversion factors for psSAR to psAPD
Table 2 — Uncertainty budget template for evaluating the uncertainty in the measured value of the psAPD of a DUT or validation antenna
Table C.1 — Mechanical dimensions of the reference dipoles
Table C.2 — Parameters of the dielectric components of the CAD models of the reference dipoles
Table C.3 — Numerical psAPD target values (rotating square) and the values converted from numerical psSAR results
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SA/SNZ TS IEC 63446:2024 Conversion method of specific absorption rate to absorbed power density for the assessment of human exposure to radio frequency electromagnetic fields from wireless devices in close proximity to the head and body - Frequency range
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
4.1 Physical quantities
4.2 Constants
4.3 Abbreviations
5 Application of this document
6 APD conversion method by evaluation of the SAR distribution
7 Uncertainty estimation
7.1 Measurement uncertainty
7.2 Numerical uncertainty
8 Measurement and computational report
Annex A (informative) Rationale for conversion of psSAR into psAPD
Annex B (informative) Poynting vector and absorbed power density
Annex C (normative) Reference dipoles and psAPD values for system check and validation
Annex D (normative) Supplemental files and their checksums
Bibliography
Figure C.1 — Mechanical details of the standard dipoles
Table 1 — Conversion factors for psSAR to psAPD
Table 2 — Uncertainty budget template for evaluating the uncertainty in the measured value of the psAPD of a DUT or validation antenna
Table C.1 — Mechanical dimensions of the reference dipoles
Table C.2 — Parameters of the dielectric components of the CAD models of the reference dipoles
Table C.3 — Numerical psAPD target values (rotating square) and the values converted from numerical psSAR results
SA/SNZ TS IEC 63446:2024
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.