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 C P.pdf

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1、 IEC/IEEE 62704-3 Edition 1.0 2017-10 INTERNATIONAL STANDARD NORME INTERNATIONALE 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 (FDT

2、D) method for SAR calculations of mobile phones Dtermination du dbit dabsorption spcifique (DAS) maximal moyenn dans le corps humain, produit par les dispositifs de communication sans fil, 30 MHz 6 GHz Partie 3: Exigences spcifiques pour lutilisation de la mthode des diffrences finies dans le domain

3、e temporel (FDTD) pour les calculs de DAS des tlphones mobiles IEC/IEEE62704-3:2017-10(en-fr) colourinsideTHIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland Copyright 2017 IEEE All rights reserved. Unless otherwise specified, no part of this publication may be reproduced

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13、webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC/IEEE 62704-3 Edition 1.0 2017-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Determining the peak spatial-average specific absorption ra

14、te (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 Dtermination du dbit dabsorption spcifique (DAS) maximal moyenn dans le corps humain, produit

15、 par les dispositifs de communication sans fil, 30 MHz 6 GHz Partie 3: Exigences spcifiques pour lutilisation de la mthode des diffrences finies dans le domaine temporel (FDTD) pour les calculs de DAS des tlphones mobiles INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNAT

16、IONALE ICS 17.220.20 ISBN 978-2-8322-4772-3 Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. Registered trademark of the International Electrotechnical Commission Mar

17、que dpose de la Commission Electrotechnique Internationale colourinside 2 IEC/IEEE 62704-3:2017 IEC/IEEE 2017 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references 8 3 Terms and definitions 9 4 Abbreviated terms . 9 5 Simulation procedure . 10 5.1 General . 10 5.2 General considera

18、tions . 10 5.3 General mesh settings 10 5.4 Simulation parameters 10 5.5 DUT model 10 5.5.1 General . 10 5.5.2 Antenna . 12 5.5.3 RF source 12 5.5.4 PCB . 13 5.5.5 Screen . 13 5.5.6 Battery and other larger metallic components 14 5.5.7 Casing . 14 5.6 SAR calculation using phantom models. 14 5.6.1 G

19、eneral . 14 5.6.2 Head phantom model . 15 5.6.3 Body phantom model . 18 5.6.4 Phantom mesh generation . 18 5.7 Recording of results 18 5.8 Peak spatial-average SAR calculation . 19 6 Benchmark models 19 6.1 General . 19 6.2 Generic metallic box phone for 835 MHz and 1 900 MHz . 19 6.3 GSM/UMTS mobil

20、e phone . 21 6.4 Generic multi-band patch antenna mobile phone . 22 6.5 Neo Free Runner mobile phone 24 7 Computational uncertainty . 25 7.1 General considerations . 25 7.2 Uncertainty of the test setup with respect to simulation parameters 26 7.3 Uncertainty of the developed numerical model of the

21、DUT 26 7.4 Validation of the developed numerical model of the DUT. 26 7.5 Uncertainty budget 26 8 Reporting simulation results 27 8.1 General considerations . 27 8.2 DUT 27 8.3 Simulated configurations . 27 8.4 Numerical simulation tool 28 8.5 Results of the benchmark models . 28 8.6 Uncertainties.

22、28 8.7 SAR results . 28 IEC/IEEE 62704-3:2017 3 IEC/IEEE 2017 Annex A (informative) Additional results for the generic mobile phone with integrated multiband antenna 29 Annex B (informative) Additional results for the Neo Free Runner mobile phone 31 Bibliography 35 Figure 1 An example of a multi-ban

23、d antenna consisting of two metallic elements for the GSM and UMTS frequency bands . 12 Figure 2 An example of a source gap position that is inserted in replacement of a real-life feeding spring pin. 13 Figure 3 An example of a microstrip feed line. 13 Figure 4 Orientation of the mobile phone model

24、prior to positioning against the head or the body phantom . 15 Figure 5 Orientation of the SAM phantom prior to positioning against the DUT shown in Figure 4 16 Figure 6 Suggested steps for the cheek position of the DUT against the SAM phantom . 16 Figure 7 Tilt position of the DUT against the SAM p

25、hantom 17 Figure 8 Example of the full model space that includes the DUT and the SAM phantom for the numerical simulations for the right cheek position 17 Figure 9 Example of the model space for the DUT/body phantom calculation setup 18 Figure 10 The SAM head phantom and the generic metallic box pho

26、ne . 19 Figure 11 Physical dimensions of the generic metallic box phone . 20 Figure 12 Generic GSM/UMTS mobile phone . 21 Figure 13 Generic mobile phone with integrated multiband patch antenna 23 Figure 14 CAD model of the Neo Free Runner mobile phone . 24 Figure A.1 Real part of the input impedance

27、 of the antenna obtained with three different commercially available software products 29 Figure A.2 Imaginary part of the input impedance of the antenna obtained with three different commercially available software products 30 Figure B.1 Basic version of the Neo Free Runner CAD model . 31 Figure B.

28、2 Intermediate version of the Neo Free Runner CAD model 31 Figure B.3 Full version of the Neo Free Runner CAD model 32 Figure B.4 Interlaboratory comparison results of the free space reflection coefficient for the basic CAD model . 32 Figure B.5 Interlaboratory comparison results of the free space r

29、eflection coefficient for the intermediate CAD model 33 Figure B.6 Interlaboratory comparison results of the free space reflection coefficient for the full CAD model . 33 Table 1 Dielectric parameters of the materials of the generic phone. 20 Table 2 Peak spatial-average SAR for 1 g and 10 g of the

30、benchmark . 21 Table 3 Dielectric properties of the materials of the generic GSM/UMTS mobile phone . 22 Table 4 Peak 1 g and 10 g SAR results of the GSM/UMTS mobile phone . 22 Table 5 Limits of the output parameters for the generic multi-band mobile phone . 23 Table 6 Peak 1 g and 10 g SAR results o

31、f the GSM/UMTS mobile phone . 24 Table 7 Dielectric properties of the materials of the Neo Free Runner mobile phone 25 4 IEC/IEEE 62704-3:2017 IEC/IEEE 2017 Table 8 Peak 1 g and 10 g SAR results of the Neo Free Runner mobile phone 25 Table 9 Overall uncertainty budget . 27 Table B.1 Frequency limits

32、 of the 6 dB reflection coefficient for the three different versions of the Neo Free Runner mobile phone . 34 IEC/IEEE 62704-3:2017 5 IEC/IEEE 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DETERMINING THE PEAK SPATIAL-AVERAGE SPECIFIC ABSORPTION RATE (SAR) IN THE HUMAN BODY FROM WIRELESS COMMUNIC

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