1、 IEC 62209-2 Edition 1.0 2010-03 INTERNATIONAL STANDARD NORME INTERNATIONALE 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 wir
2、eless communication devices used in close proximity to the human body (frequency range of 30 MHz to 6 GHz) Exposition humaine aux champs radiofrquence produits par les dispositifs de communications sans fils tenus la main ou ports prs du corps Modles de corps humain, instrumentation et procdures Par
3、tie 2: Procdure de dtermination du dbit dabsorption spcifique produit par les appareils de communications sans fil utiliss trs prs du corps humain (gamme de frquences de 30 MHz 6 GHz) IEC 62209-2:2010 colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All r
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18、EC 62209-2 Edition 1.0 2010-03 INTERNATIONAL STANDARD NORME INTERNATIONALE 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 wirel
19、ess communication devices used in close proximity to the human body (frequency range of 30 MHz to 6 GHz) Exposition humaine aux champs radiofrquence produits par les dispositifs de communications sans fils tenus la main ou ports prs du corps Modles de corps humain, instrumentation et procdures Parti
20、e 2: Procdure de dtermination du dbit dabsorption spcifique produit par les appareils de communications sans fil utiliss trs prs du corps humain (gamme de frquences de 30 MHz 6 GHz) INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XE ICS 33.050.10 PRICE CODE CODE
21、PRIX ISBN 2-8318-1087-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale colour inside 2 62209-2 IEC:2010 CONTENTS FOREWORD.5 INTRODUCTION.7 1 Scope.8 2 Normative references .8 3 Terms and definitions .9 4 Symbols and
22、 abbreviated terms12 4.1 Physical quantities 12 4.2 Constants12 4.3 Abbreviations 12 5 Measurement system specifications .13 5.1 General requirements13 5.2 Phantom specifications shell and liquid 14 5.2.1 General requirements14 5.2.2 Phantom material, shape and size.14 5.2.3 Tissue-equivalent liquid
23、 material properties .15 5.3 Measurement instrumentation system specifications .17 5.3.1 General requirements17 5.3.2 Scanning system .17 5.3.3 Probes.17 5.3.4 Probe calibration .17 5.3.5 Specifications for fixture(s) to hold the DUT in the test position .17 6 Protocol for SAR evaluation18 6.1 Measu
24、rement preparation18 6.1.1 General preparation.18 6.1.2 System check 18 6.1.3 Preparation of the device under test 18 6.1.4 Position of the device under test in relation to the phantom .20 6.1.5 Test frequencies30 6.2 Tests to be performed .30 6.2.1 General requirements30 6.2.2 Test reductions30 6.2
25、3 General test procedure31 6.2.4 Fast SAR evaluations 32 6.3 Measurement procedure34 6.3.1 General procedure.34 6.3.2 Procedures for testing of DUTs with simultaneous multi-band transmission35 6.4 Post-processing 37 6.4.1 Interpolation 37 6.4.2 Probe offset extrapolation37 6.4.3 Definition of avera
26、ging volume.37 6.4.4 Searching for the maxima38 7 Uncertainty estimation38 7.1 General considerations38 7.1.1 Concept of uncertainty estimation38 7.1.2 Type A and type B evaluations 38 62209-2 IEC:2010 3 7.1.3 Degrees of freedom and coverage factor .39 7.2 Components contributing to uncertainty.40 7
27、2.1 General .40 7.2.2 Contribution of the measurement system (probe and associated electronics)40 7.2.3 Contribution of mechanical constraints 46 7.2.4 Contribution of physical parameters.49 7.2.5 Contribution of post-processing .53 7.2.6 Standard source offset and tolerance 57 7.3 Uncertainty esti
28、mation.58 7.3.1 Combined and expanded uncertainties 58 7.3.2 Maximum expanded uncertainty 58 8 Measurement report .64 8.1 General .64 8.2 Items to be recorded in the measurement report64 Annex A (informative) Phantom rationale .66 Annex B (normative) SAR measurement system verification 69 Annex C (i
29、nformative) Fast SAR testing.78 Annex D (informative) Standard sources and phantoms for system validation 80 Annex E (informative) Example recipes for phantom tissue-equivalent liquids86 Annex F (normative) SAR correction for deviations of complex permittivity from targets.89 Annex G (informative) H
30、ands-free kit testing91 Annex H (informative) Skin enhancement factor.94 Annex I (informative) Tissue-equivalent liquid dielectric property measurements and measurement uncertainty estimation.98 Annex J (informative) Testing compliance for the exposure of the hand .100 Annex K (informative) Test red
31、uction .102 Annex L (normative) Power scaling procedure .104 Annex M (informative) Rationale for probe parameters 106 Bibliography108 Figure 1 Dimensions of the elliptical phantom 15 Figure 2 Definition of reference points .21 Figure 3 Measurements by shifting of the device at the phantom .22 Figure
32、 4 Test positions for a generic device.23 Figure 5 Test positions for body-worn devices .24 Figure 6 Device with swivel antenna (example of desktop device)24 Figure 7 Test positions for body supported devices26 Figure 8 Test positions for desktop devices .27 Figure 9 Test positions for front-of-face
33、 devices.28 Figure 10 Test position for limb-worn devices 29 Figure 11 Test position for clothing-integrated wireless devices.30 Figure 12 Block diagram of the tests to be performed 33 Figure 13 Orientation of the probe with respect to the normal of the phantom surface35 Figure B.1 Set-up for the sy
34、stem check71 4 62209-2 IEC:2010 Figure D.1 Mechanical details of the reference dipole 82 Figure D.2 Dimensions of the flat phantom set-up used for deriving the minimal dimensions for W and L 83 Figure D.3 FDTD predicted uncertainty in the 10 g peak spatial-average SAR as a function of the dimensions
35、 of the flat phantom compared with an infinite flat phantom 84 Figure D.4 Standard waveguide source85 Figure G.1 Configuration of a wired personal hands-free headset 91 Figure G.2 Configuration without a wired personal hands-free headset 92 Figure H.1 SAR and temperature increase ( T) distributions
36、simulated for a three- layer (skin, fat, muscle) planar torso model.94 Figure H.2 Statistical approach to protect 90 % of the population95 Figure H.3 Spatial-average SAR skin enhancement factors96 Figure J.1 Test position for hand-held devices, not used at the head or torso 100 Table 1 Dielectric pr
37、operties of the tissue-equivalent liquid material 16 Table 2 Example uncertainty template and example numerical values for relative permittivity ( r) and conductivity ( ) measurement; separate tables may be needed for each rand .50 Table 3 Parameters for reference function f 1 .54 Table 4 Reference
38、SAR values in watts per kilogram used for estimating post- processing uncertainties .55 Table 5 Measurement uncertainty evaluation template for DUT SAR test .59 Table 6 Measurement uncertainty evaluation template for system validation61 Table 7 Measurement uncertainty evaluation template for system
39、repeatability63 Table B.1 Numerical reference SAR values for reference dipoles and flat phantom All values are normalized to a forward power of 1 W.76 Table B.2 Numerical reference SAR values for reference matched waveguides in contact with flat phantom (from reference 53) .77 Table D.1 Mechanical d
40、imensions of the reference dipoles 81 Table D.2 Parameters used for calculation of reference SAR values in Table B.1 84 Table D.3 Mechanical dimensions of the standard waveguide85 Table E.1 Suggested recipes for achieving target dielectric parameters.87 Table F.1 Root-mean-squared error of Equations
41、 (F.1) to (F.3) as a function of the maximum change in permittivity or conductivity 1390 Table H.1 Spatial-average SAR correction factors96 Table I.1 Parameters for calculating the dielectric properties of various reference liquids.98 Table I.2 Dielectric properties of reference liquids at 20 C99 Ta
42、ble M.1 Minimum probe requirements as a function of frequency and parameters of the tissue equivalent liquid106 Table M.2 Extrapolation and integration uncertainty of the 10 g peak spatial average SAR (k=2) for homogeneous and graded meshes .107 62209-2 IEC:2010 5 INTERNATIONAL ELECTROTECHNICAL COMM
43、ISSION _ 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 bod
44、y (frequency range of 30 MHz to 6 GHz) FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all ques
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