1、 IEC/TR 62630Edition 1.0 2010-03TECHNICAL REPORT Guidance for evaluating exposure from multiple electromagnetic sources IEC/TR 62630:2010(E)colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this public
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9、rv If you wish to give us your feedback on this publication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 IEC/TR 62630Edition 1.0 2010-03TECHNICAL REPORT Guidance for evaluating exposure from multiple
10、electromagnetic sources INTERNATIONAL ELECTROTECHNICAL COMMISSION XICS 17.220.20;33.050.10 PRICE CODEISBN 2-8318-1083-8 Registered trademark of the International Electrotechnical Commission colourinside 2 TR 62630 IEC:2010(E)CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Ter
11、ms,definitions and abbreviations.8 3.1 Terms and definitions.8 3.2 Physical quantities.16 3.3 Constants.16 3.4 Abbreviations.16 3.5 Vector notations.17 4 Overview.17 5 Classification of devices and EM sources.20 5.1 General aspects.20 5.2 Device classification based on the intended use:user-centric
12、versus node-centric.20 5.3 EM source classification:single-channel versus band-wide transmitters.21 6 Combined exposure from multiple narrowband EM sources.23 6.1 Guidance on the selection of the exposure summation approach.23 6.2 Correlation between signals emitted by different EM sources.24 6.3 Re
13、levant exposure metrics.24 6.4 Combined exposure from uncorrelated EM sources.25 6.5 Combined exposure evaluation of correlated EM sources.25 6.5.1 Accurate estimate of the true field vector sum.25 6.5.2 Conservative combined exposure evaluation using scalar sensors.26 Annex A(informative)Frequency
14、allocations for some common wireless services.29 Annex B(informative)Supporting analytical details.32 Annex C(informative)Examples of combined exposure evaluations.39 Bibliography.46 Figure 1 Electrical paths from the radiating elements of each panel in a dual-panel antenna system to a field-point P
15、 on the-z symmetry plane.18 Figure 2 True vector sum of the complex field envelopes produced at the field-point P by the individual antenna panels in Figure 1 at two different measurement times.19 Figure 3 Simultaneous exposure at the location X by multiple sector-antennas belonging to adjacent tri-
16、sector cellular masts(labelled#1 and#2).21 Figure 4 Different approaches yielding distinct upper-bounds of the field vector-sum.28 Figure B.1 Vectorial interpretation of inequality(B25),yielding an upper-bound of the true field vector-sum(red arrow).37 Figure C.1 CAD model of the antenna system for a mobile phone,including a GSM/UMTS antenna and a Bluetooth antenna.39 Figure C.2 Qualitative description of the individual and combined SAR distributions for a mobile phone transmitting simultaneousl
