ДСТУ EN IEC 62209-3:2022 Процедура вимірювання для оцінювання питомого рівня поглинання радіочастотних полів людини від ручних і натільних пристроїв бездротового зв’язку. Частина 3. Системи на основі векторни...

ДСТУ EN IEC 62209-3:2022
(EN IEC 62209-3:2019, IDT; IEC 62209-3:2019, IDT)

Процедура вимірювання для оцінювання питомого рівня поглинання радіочастотних полів людини від ручних і натільних пристроїв бездротового зв’язку. Частина 3. Системи на основі векторних вимірювань (діапазон частот від 600 МГц до 6 ГГц)

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols and abbreviated terms

5 Overview of the measurement procedure

6 Measurement system specifications

6.1 General requirements

6.2 Phantom specifications

6.2.1 Head phantom specifications - shell

6.2.2 Body phantom specifications - shell

6.2.3 Tissue-equivalent medium properties

6.3 Measurement system requirements

6.3.1 General

6.3.2 Scanning measurement system specifications

6.3.3 Array measurement system specifications

6.4 Device holder specification

6.5 Reconstruction algorithm and peak spatial-averaging specifications

7 Protocol for SAR assessments

7.1 Measurement preparation

7.1.1 General

7.1.2 Preparation of tissue-equivalent medium

7.1.3 System check

7.1.4 Preparation of the device under test (DUT)

7.1.5 Operating modes

7.1.6 Position of the DUT in relation to the phantom

7.1.7 Positions of the DUT in relation to the flat phantom for large DUT

7.1.8 Test frequencies for DUT

7.2 Tests to be performed

7.3 General measurement procedure

7.3.1 General

7.3.2 Measurement procedure for scanning systems

7.3.3 Measurement procedure for array systems

7.4 SAR measurements for simultaneous transmission

7.4.1 General

7.4.2 SAR measurements for uncorrelated signals

7.4.3 SAR measurements for correlated signals

8 Measurement uncertainty estimation

8.1 General

8.2 Requirements on the measurement uncertainty evaluation

8.3 Description of measurement uncertainty models

8.3.1 General

8.3.2 Uncertainty models for array measurement system and scanning measurement systems

8.3.3 Example uncertainty budget templates

9 Measurement report

Annex A (normative) Phantom specifications

A.1 SAM phantom specifications

A.1.1 Justification

A.1.2 SAM phantom geometry

A.1.3 Tissue-equivalent medium

A.2 Flat phantom specifications

A.3 Specific phantoms

A.4 Tissue-equivalent medium

Annex B (normative) Calibration and characterization of dosimetric probes

B.1 General

B.2 Types of calibration

B.2.1 Amplitude calibration with analytical fields

B.2.2 Amplitude and phase calibration by transfer calibration

B.2.3 Amplitude and phase calibration using numerical reference

Annex C (informative) Field reconstruction techniques

C.1 General

C.2 Objective of field reconstruction techniques

C.3 Background

C.4 Reconstruction techniques

C.4.1 Expansion techniques

C.4.2 Source reconstruction techniques

C.4.3 Source base function decomposition

C.4.4 Phase reconstruction

C.5 Source reconstruction and SAR estimation from fields measured outside the phantom

C.6 Additional considerations for field reconstruction in scanning systems

Annex D (normative) SAR measurement system verification and system validation

D.1 Objectives and purpose

D.1.1 General

D.1.2 Objectives and purpose of system check

D.1.3 Objectives of system validation

D.2 SAR measurement setup and procedure for system check and system validation

D.2.1 General

D.2.2 Power measurement setups

D.2.3 Procedure to measure and normalize SAR

D.2.4 Power measurement uncertainty

D.3 System check

D.3.1 System check antennas and test conditions

D.3.2 System check antennas and test conditions for scanning systems

D.3.3 System check antennas and test conditions for array systems

D.3.4 System check acceptance criteria

D.4 System validation

D.4.1 Validation of array systems and scanning systems

D.4.2 Requirements for system validation antennas and test conditions

D.4.3 Requirements for array systems and scanning systems

D.4.4 Test positions for system validation

D.4.5 System validation procedure based on peak spatial-average SAR

D.4.6 On-site system validation after installation

D.4.7 System validation acceptance criteria

Annex E (informative) Interlaboratory comparisons

E.1 Purpose

E.2 Monitor laboratory

E.3 Phantom set-up

E.4 Reference devices

E.5 Power set-up

E.6 Interlaboratory comparison - Procedure

Annex F (normative) System validation antennas

F.1 General requirements

F.2 Return loss requirements

F.3 Standard dipole antenna

F.4 VPIFA

F.5 2-PEAK CPIFA

F.6 Additional antennas

Annex G (normative) SAR calibration of reference antennas

G.1 Purpose

G.2 Parameters or quantities and ranges to be determined by calibration method

G.3 Reference antenna calibration setup

G.4 Reference antenna calibration procedure

G.4.1 Verification of return loss

G.4.2 Calibration of reference antennas: step-by-step procedure

G.4.3 Uncertainty budget of reference antenna calibration

G.5 Method and uncertainties for the transfer of calibration between two of more antennas of the same type using the array system

Annex H (informative) General considerations on uncertainty estimation

H.1 Concept of uncertainty estimation

H.2 Type A and Type B evaluations

H.3 Degrees of freedom and coverage factor

H.4 Combined and expanded uncertainties

H.5 Analytical reference functions

Annex I (normative) Evaluation of measurement uncertainty of SAR results from scanning vector measurement-based systems with single probes

I.1 Measurement uncertainties to be evaluated by the system manufacturer MM

I.1.1 General

I.1.2 Calibration CF

I.1.3 Isotropy ISO

I.1.4 System linearity LIN

I.1.5 Sensitivity limit SL

I.1.6 Boundary effect BE

I.1.7 Readout electronics RE

I.1.8 Response time RT

I.1.9 Probe positioning PP

I.1.10 Sampling error SE

I.1.11 Phantom shell PS

I.1.12 Tissue-equivalent medium parameters MAT

I.1.13 Measurement system immunity/secondary reception MSI

I.2 Uncertainty of reconstruction corrections and post-processing to be specified by the manufacturer MN

I.2.1 General

I.2.2 Evaluation of uncertainty due to reconstruction REC

I.2.3 Impact of noise on reconstruction POL

I.2.4 SAR averaging SAV

I.2.5 SAR scaling SARS

I.2.6 SAR correction for deviations in permittivity and conductivity SC

I.3 Uncertainties that are dependent on the DUT MD

I.3.1 General

I.3.2 Probe coupling with the DUT PC

I.3.3 Modulation Response MOD

I.3.4 Integration time IT

I.3.5 Measured SAR drift SD

I.4 Uncertainties related to the measurement environment ME

I.4.1 General

I.4.2 Device holder DH

I.4.3 Device positioning DP

I.4.4 RF ambient conditions AC

I.4.5 Measurement system drift and noise DN

I.5 Uncertainties of validation antennas MV

I.5.1 General

I.5.2 Deviation of experimental antennas DEX

I.5.3 Power measurement uncertainty PMU

I.5.4 Other uncertainty contributions when using validation antennas OVS

Annex J (normative) Evaluation of the measurement system uncertainty of fixed array or scanning array vector measurement-based systems

J.1 Measuring system uncertainties to be evaluated by the manufacturer MM

J.1.1 General

J.1.2 Calibration CP

J.1.3 Isotropy ISO

J.1.4 Mutual sensor coupling MSC

J.1.5 Scattering due to the presence of the array AS

J.1.6 System linearity LIN

J.1.7 Sensitivity limit SL

J.1.8 Boundary effect BE

J.1.9 Readout electronics RE

J.1.10 Response time RT

J.1.11 Probe position PP

J.1.12 Sampling error SE

J.1.13 Array boundaries AB

J.1.14 Phantom shell PS

J.1.15 Tissue-equivalent medium parameters MAT

J.1.16 Phantom homogeneity HOM

J.1.17 Measurement system immunity/secondary reception MSI

J.2 Uncertainty of reconstruction, corrections, and post-processing to be specified by the manufacturer MN

J.2.1 General

J.2.2 Evaluation of uncertainty due to reconstruction REC

J.2.3 Impact of noise on reconstruction POL

J.2.4 SAR averaging SAV

J.2.5 SAR scaling SARS

J.2.6 SAR correction for deviations in permittivity and conductivity SC

J.3 Measurement system uncertainties that are dependent on the DUT MD

J.3.1 General

J.3.2 Probe or probe-array coupling with the DUT PC

J.3.3 Modulation response MOD

J.3.4 Integration time IT

J.3.5 Measurement system drift and noise DN

J.4 Uncertainties related to the source or noise ME

J.4.1 General

J.4.2 Device holder DH

J.4.3 Device positioning DP

J.4.4 RF ambient conditions AC

J.4.5 Measurement system drift and noise DN

J.5 Uncertainties of validation antennas MV

J.5.1 General

J.5.2 Deviation of experimental antennas DEX

J.5.3 Power measurement uncertainty PMU

J.5.4 Other uncertainty contributions when using validation antennas OVS

Bibliography

Figure 1 - Evaluation plan checklist

Figure 2 - Illustration of the shape and orientation relative to a curved phantom surface of the distorted cubic volume for computing psSAR

Figure 3 - Measurements performed by shifting a large device over the efficient measurement area of the system including overlapping areas - in this case: six tests performed

Figure 4 - Flow chart for SAR measurements of uncorrelated signals at different frequencies using a measurement system able to distinguish between different frequency components (Method 2)

Figure 5 - Illustration of the amplitude spectrum, as function of frequency, for simultaneously transmitted signals of multiple frequency bands emitted by a DUT

Figure 6 - Illustration of a completely covered signal bandwidth Ps by the measurement system analysis bandwidth Pa at single transmission mode

Figure 7 - Illustration of a completely covered signal bandwidths PS/ (for i = 2 to A') by the measurement system analysis bandwidth Pa for simultaneous multiple-frequency transmission mode

Figure 8 - Illustration of a non-coverage of the signal bandwidths Bsi (for / = 2 to A’) by the measurement system analysis bandwidth Ba for simultaneous multiple-frequency transmission mode

Figure 9 - Illustration of a partial-coverage of the signal bandwidths Bsi (for i = 2 to Ar) by the measurement system analysis bandwidth Ba for simultaneous multiplefrequency transmission mode

Figure 10 - Illustration of reduction of the measurement system analysis bandwidth Ba to cover only one signal bandwidth 5S/ (for i = 1 to Ar) for simultaneous multiplefrequency transmission mode

Figure 11 - Illustration of increasing or moving the measurement system analysis bandwidth Ba to cover one or more signal bandwidth B3j (for i = 1 to A') for simultaneous multiple-frequency transmission mode

Figure A.1 - Sagittally-bisected phantom with extended perimeter, used for scanning measurement systems

Figure A.2 - Dimensions of the elliptical phantom

Figure C.1 - Coordinate system for 2D planar measurement-system

Figure C.2 — Generic configuration of SAR measurement system

Figure C.3 - Schematic representation of 2D planar measurement-based SAR system and its coordinate system

Figure C.4 - Source reconstruction from fields outside a phantom

Figure D.1 - Recommended power measurement setup for system check and system validation

Figure D.2 - Equipment setup for measurement of forward power Pf and forward coupled power Pfc

Figure D.3 - Equipment setup for measuring the shorted reverse coupled power Prcs

Figure D.4 - Equipment setup for measuring the power with the reference antenna connected

Figure D.5 - Port numbering for the S-parameter measurements of the directional coupler

Figure D.6 - SAM masks for positioning dipole antennas and VPIFAs on the head phantoms, including holes where the antenna spacer is inserted

Figure D.7 - Flat masks for positioning VPIFAs on the flat phantoms, including a hole in the centre where the VPIFA spacer is inserted

Figure D.8 - Dipole showing the distance of 5 = 15 mm

Figure D.9 - 2-PEAK CPIFA showing the fixed distance of 5 = 7 mm

Figure D.10 - VPIFA positioned showing the fixed distance of 5 = 2 mm

Figure D.11 - System check and validation locations for the flat phantom

Figure D.12 - System check and validation locations for the head phantom

Figure D.13 - Definition of rotation angles for dipoles

Figure F.1 - Mechanical details of the standard dipole

Figure F.2 - VPIFA validation antenna

Figure F.3 - 2-PEAK CPIFA at 2 450 MHz

Figure F.4 - Detail of the tuning structure and matching structure

Figure G.1 - Measurement setup for waveguide calibration of dosimetric probe, and similar setup (same tissue-equivalent liquid, dielectric spacer, power sensors and coupler) for antenna calibration

Figure G.2 - Setup for calibration of a reference antenna

Figure G.3 - Method for the transfer of calibration between two antennas of the same type using the array system

Figure 1.1 - Illustration of SAR measurement results during 8 h and the centred moving average

Table 1 - Evaluation plan checklist

Table 2 - Uncertainty budget template for the evaluation of the measurement system uncertainty of the 1 g or 10 g psSAR to be carried out by the system manufacturer

Table 3 - Uncertainty budget template for evaluating the uncertainty in the measured value of 1 g SAR or 10 g SAR from a DUT

Table 4 - Uncertainty budget template for evaluating the uncertainty in the measured value of 1 g SAR or 10 g SAR from a validation antenna

Table 5 - Uncertainty budget template for evaluating the uncertainty in the measured value of 1 g SAR or 10 g SAR from the system check

Table A.1 - Dielectric properties of the tissue-equivalent medium

Table B.1 - Uncertainty analysis for single-probe calibration in waveguide

Table B.2 - Uncertainty analysis for transfer calibration of array systems

Table B.3 - Uncertainty analysis of transfer calibration of array systems

Table D.1 - Example of power measurement uncertainty in %

Table D.2 - Modulations and multiplexing modes used by radio systems

Table D.3 - Peak spatial-average SAR (psSAR) averaged over 1 g and 10 g values for the flat phantom filled with tissue-equivalent medium for the antennas specified in Annex F

Table D.4 - Peak spatial-average SAR (psSAR) averaged over 1 g and 10 g values for antenna generating two peaks on the flat phantom filled with tissue-equivalent medium for the antennas specified in Annex F

Table D.5 - Peak spatial-average SAR (psSAR) averaged over 1 g and 10 g values on the head left and right phantom for the antennas specified in Annex F

Table D.6 - Peak spatial-average SAR (psSAR) averaged over 1 g and 10 g values for antenna generating two peaks on the head left and right phantom for the antennas specified in Annex F. Modulations are as specified in Table D.2

Table D.7 - Set of randomised tests for on-site system validation using flat phantom 1 g and 10 g psSAR, normalized to 1 W forward power, using the antennas specified in Annex F

Table D.8 - Set of tests for on-site system validation using left and right head phantoms for 1 g and 10 g psSAR for the antennas specified in Annex F

Table F.1 - Return loss values for antennas specified in Annex F and flat phantom filled with tissue-equivalent medium

Table F.2 - Mechanical dimensions of the reference dipoles

Table F.3 - Dimensions for VPIFA antennas at different frequencies

Table F.4 - Dielectric properties of the dielectric layers for VPIFA antennas

Table F.5 - Thickness of substrates and planar metallization

Table F.6 - Dielectric properties of FR4

Table F.7 - Values for the antenna dimensions in Figures F.4 and F.5

Table G.1 - Example uncertainty budget for reference dipole antenna calibration for 1 g and 10 g averaged SAR (750 MHz to 3 GHz)

Table G.2 - Example uncertainty budget for reference antenna calibration (PIFA) for 1 g and 10 g averaged SAR (750 MHz to 3 GHz)

Table G.3 - Example uncertainty budget for reference antenna (dipole) calibration for 1 g and 10 g averaged SAR (3 GHz to 6 GHz)

Table G.4 - Example uncertainty budget for the calibration of an antenna using the transfer method, as percentages

Table H.1 - Parameters of analytical reference functions and associated reference peak 10 g SAR value