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IEC/IEEE 62209-1528
Edition 1.0 2020-10
INTERNATIONAL
STANDARD
colour
inside
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 1528: Human models, instrumentation, and procedures
(Frequency range of 4 MHz to 10 GHz)
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IEC/IEEE 62209-1528
Edition 1.0 2020-10
INTERNATIONAL
STANDARD
colour
inside
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 1528: Human models, instrumentation, and procedures
(Frequency range of 4 MHz to 10 GHz)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.20 ISBN 978-2-8322-8533-6
– 2 – IEC/IEEE 62209-1528:2020
© IEC/IEEE 2020
CONTENTS
FOREWORD . 14
INTRODUCTION . 17
1 Scope . 18
2 Normative references . 18
3 Terms and definitions . 18
4 Symbols and abbreviated terms . 26
4.1 Physical quantities . 26
4.2 Constants . 26
4.3 Abbreviated terms . 27
5 Quick start guide and evaluation plan checklist . 28
6 Measurement system specifications . 30
6.1 General requirements for full SAR testing . 30
6.2 Phantom specifications . 31
6.2.1 General . 31
6.2.2 Basic phantom parameters . 31
6.2.3 Head phantom . 33
6.2.4 Flat phantom . 34
6.2.5 Device-specific phantoms . 35
6.3 Influence of hand on SAR in head . 35
6.4 Scanning system requirements . 36
6.5 Device holder specifications . 36
6.6 Characteristics of the readout electronics . 37
7 Protocol for SAR assessment . 37
7.1 General . 37
7.2 Measurement preparation . 37
7.2.1 Preparation of tissue-equivalent medium and system check. 37
7.2.2 Preparation of the wireless communication DUT . 38
7.2.3 DUT operating mode requirements . 38
7.2.4 Positioning of the DUT relative to the phantom . 40
7.2.5 Antenna configurations . 57
7.2.6 Options and accessories . 57
7.2.7 DUTs with alternative form factor . 57
7.2.8 Test frequencies for DUTs . 58
7.3 Tests to be performed for DUTs . 58
7.3.1 General . 58
7.3.2 Basic approach for DUT testing . 59
7.4 Measurement procedure . 60
7.4.1 General . 60
7.4.2 Full SAR testing procedure . 60
7.4.3 Drift . 64
7.4.4 SAR measurements of DUTs with multiple antennas or multiple
transmitters . 66
7.5 Post-processing of SAR measurement data . 72
7.5.1 Interpolation . 72
7.5.2 Extrapolation . 72
7.5.3 Definition of the averaging volume . 72
© IEC/IEEE 2020
7.5.4 Searching for the maxima . 73
7.6 Time-period averaged SAR considerations. 73
7.6.1 General . 73
7.6.2 RF conducted power . 73
7.6.3 Time-period averaged SAR measurement settings for SAR
measurement methods . 73
7.6.4 Exposure condition and test position considerations . 74
7.6.5 Time-period averaged SAR for simultaneous transmission . 74
7.6.6 TX factor assessment . 74
7.6.7 SAR measurements . 75
7.6.8 Uncertainty in TPAS evaluations . 75
7.7 Proximity sensors considerations . 76
7.7.1 General . 76
7.7.2 Procedures for determining proximity sensor triggering distances . 77
7.7.3 Procedure for determining proximity sensor coverage area . 80
7.7.4 SAR measurement procedure involving proximity sensors . 81
7.8 SAR correction for deviations of complex permittivity from targets . 81
7.8.1 General . 81
7.8.2 SAR correction formula . 82
7.8.3 Uncertainty of the correction formula . 83
7.9 Minimization of testing time . 83
7.9.1 General . 83
7.9.2 Fast SAR testing. 84
7.9.3 SAR test reductions . 89
8 Measurement uncertainty estimation. 100
8.1 General . 100
8.2 Requirements on the uncertainty evaluation . 101
8.3 Description of uncertainty models . 102
8.3.1 General . 102
8.3.2 SAR measurement of a DUT . 102
8.3.3 System validation and system check measurement . 102
8.3.4 System check repeatability and reproducibility . 102
8.3.5 Fast SAR testing (relative measurement) . 102
8.4 Parameters contributing to uncertainty . 104
8.4.1 Measurement system errors. 104
8.4.2 Phantom and device (DUT or validation antenna) errors . 105
8.4.3 Corrections to the SAR result (if applied) . 107
9 Measurement report . 108
9.1 General . 108
9.2 Items to be recorded in the measurement report . 108
Annex A (normative) SAR measurement system verification . 112
A.1 Overview. 112
A.2 System check . 112
A.2.1 Purpose . 112
A.2.2 Phantom set-up . 113
A.2.3 System check antenna . 113
A.2.4 System check antenna input power measurement . 114
A.2.5 System che
...