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eLibrary > 23/30436008 DC BS EN IEC/IEEE 62209-3 AMD 1. 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 3. Vector measurement-based >

23/30436008 DC BS EN IEC/IEEE 62209-3 AMD 1. 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 3. Vector measurement-based, 2023

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23/30436008 DC BS EN IEC/IEEE 62209-3 AMD 1. 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 3. Vector measurement-based, 2023

106_601e_CD.pdf [Go to Page]
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms [Go to Page]
4.1 Physical quantities
4.2 Constants
4.3 Abbreviated terms
5 Overview of the measurement procedure
6 Measurement system specifications [Go to Page]
6.1 General requirements
6.2 Phantom specifications [Go to Page]
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 [Go to Page]
6.3.1 General
6.3.2 Scanning measurement system specifications
6.3.3 Array measurement system specifications
6.3.4 Measurement system dynamic range
6.4 Device holder specification
6.5 Reconstruction algorithm and peak spatial-averaging specifications
7 Measurement system preparation and laboratory preparation [Go to Page]
7.1 General
7.2 Preparation of tissue-equivalent medium
7.3 System check
7.4 Probe calibration
8 Protocol for SAR assessments [Go to Page]
8.1 Preparation of the DUT [Go to Page]
8.1.1 General
8.1.2 Requirements on power and signal
8.1.3 Antenna configuration
8.1.4 Options and accessories
8.1.5 Test frequencies for DUT
8.2 Measurement procedures [Go to Page]
8.2.1 DUT positioning relative to phantom
8.2.2 Tests to be performed
8.2.3 Measurements [Go to Page]
8.2.3.1 General
8.2.3.2 Measurement procedure for scanning systems
8.2.3.3 Measurement procedure for array systems
8.2.4 SAR measurements for simultaneous transmission
8.3 SAR scaling procedure for power or signal variations
9 SAR measurements for simultaneous transmission [Go to Page]
9.1 General
9.2 SAR measurements for uncorrelated signals [Go to Page]
9.2.1 General
9.2.2 SAR measurement procedure
9.2.3 Procedure for summation of SAR distributions
9.3 SAR measurements for correlated signals [Go to Page]
9.3.1 General
9.3.2 Measurement procedure for Type 1 correlated signals
9.3.3 Measurement procedure for Type 2 correlated signals
10 Position of the DUT in relation to the phantom [Go to Page]
10.1 Test distance and positioning relative to the flat phantom [Go to Page]
10.1.1 General
10.1.2 DUT-to-phantom separation distance
10.1.3 DUT reference points
10.1.4 Positions of the DUT in relation to the flat phantom for large DUT
10.1.5 Devices used with body-worn accessories
10.1.6 Devices with hinged or swivel antenna(s)
10.1.7 Devices used next to or against the body without an accessory
10.1.8 Desktop device
10.1.9 Front-of-face device
10.1.10 Hand-held usage of the device, not at the head or torso
10.1.11 Limb-worn device
10.1.12 Clothing-integrated device
10.1.13 Generic device
10.2 Positioning relative to the head phantom [Go to Page]
10.2.1 General
10.2.2 Definition of the cheek position
10.2.3 Definition of the tilt position
10.2.4 DUTs with alternative form factor
11 Measurement uncertainty estimation [Go to Page]
11.1 General
11.2 Requirements on the measurement uncertainty evaluation
11.3 Description of measurement uncertainty models [Go to Page]
11.3.1 General
11.3.2 Uncertainty models for array measurement system and scanning measurement systems
11.3.3 Example uncertainty budget templates
12 Measurement report [Go to Page]
12.1 General
12.2 Items to be recorded in the measurement report
Annex A (normative) Phantom specifications [Go to Page]
A.1 SAM phantom specifications [Go to Page]
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 [Go to Page]
B.1 General
B.2 Types of calibration [Go to Page]
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 [Go to Page]
C.1 General
C.2 Objective of field reconstruction techniques
C.3 Background
C.4 Reconstruction techniques [Go to Page]
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 [Go to Page]
D.1 Objectives and purpose [Go to Page]
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 [Go to Page]
D.2.1 General
D.2.2 Power measurement setups
D.2.3 Procedure to measure and normalise SAR
D.2.4 Power measurement uncertainty
D.3 System check [Go to Page]
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 [Go to Page]
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 General approach of system validation procedure
D.4.5 Measurement configurations for system validation [Go to Page]
D.4.5.1 General
D.4.5.2 Source description [Go to Page]
D.4.5.2.1 General
D.4.5.2.2 Antennas
D.4.5.2.3 Distance and output power
D.4.5.2.4 Modulations
D.4.5.3 Antenna location
D.4.5.4 Antenna orientation
D.4.5.5 Antenna separation distances
D.4.5.6 Antenna position exemptions on the head phantoms
D.4.6 System validation target values
D.4.7 System validation acceptance criteria
Annex E (normative) System validation antennas [Go to Page]
E.1 General requirements
E.2 Return loss requirements
E.3 Standard dipole antenna
E.4 VPIFA [Go to Page]
E.4.1 General
E.4.2 VPIFA version 1
E.4.3 VPIFA version 2
E.5 2-PEAK antenna [Go to Page]
E.5.1 General
E.5.2 2-PEAK antenna version 1
E.5.3 2-PEAK antenna version 2
E.6 Additional antennas
Annex F (normative) SAR calibration of reference antennas [Go to Page]
F.1 Purpose
F.2 Parameters or quantities and ranges to be determined by calibration method
F.3 Reference antenna calibration setup
F.4 Reference antenna calibration procedure [Go to Page]
F.4.1 Verification of return loss
F.4.2 Calibration of reference antennas: step-by-step procedure
F.4.3 Uncertainty budget of reference antenna calibration
F.5 Method and uncertainties for the transfer of calibration between two or more antennas of the same type using the array system
Annex G (informative) Interlaboratory comparisons [Go to Page]
G.1 Purpose
G.2 Monitor laboratory
G.3 Reference devices
G.4 Device power set-up
G.5 Interlaboratory comparison – Procedure
Annex H (informative) General considerations on uncertainty estimation [Go to Page]
H.1 Concepts 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
Annex I (normative) Evaluation of measurement uncertainty of SAR results from single-probe and probe-array vector measurement-based systems [Go to Page]
I.1 General
I.2 Measurement uncertainty components typically to be assessed and documented by the system manufacturer MM [Go to Page]
I.2.1 Calibration CF
I.2.2 Isotropy ISO
I.2.3 Mutual probe coupling MSC [Go to Page]
I.2.3.1 General
I.2.3.2 Evaluation of mutual probe coupling for independently-calibrated probes
I.2.3.3 Evaluation of mutual probe coupling for probe arrays using compensation
I.2.4 Scattering due to the presence of the array AS [Go to Page]
I.2.4.1 General
I.2.4.2 Evaluation of array scattering for independently-calibrated probes
I.2.4.3 Evaluation of array scattering for systems using compensation
I.2.5 System linearity LIN
I.2.6 Sensitivity limit SL
I.2.7 Boundary effect BE
I.2.8 Readout electronics RE
I.2.9 Response time RT
I.2.10 Probe positioning / position PP
I.2.11 Sampling error SE
I.2.12 Phantom shell PS
I.2.13 Array boundaries AB
I.2.14 Tissue-equivalent medium dielectric properties MAT [Go to Page]
I.2.14.1 General
I.2.14.2 Medium mass density
I.2.14.3 Medium conductivity
I.2.14.4 Medium relative permittivity
I.2.14.5 Medium temperature
I.2.15 Phantom homogeneity HOM
I.2.16 Measurement system immunity/secondary reception MSI
I.3 Uncertainty of reconstruction, corrections and post-processing typically to be assessed and documented by the system manufacturer MN [Go to Page]
I.3.1 Evaluation of uncertainty due to reconstruction REC
I.3.2 Impact of noise on reconstruction POL
I.3.3 SAR averaging SAV
I.3.4 SAR scaling SARS
I.3.5 Power sharing scheme PSH
I.3.6 SAR combining SCB
I.3.7 SAR correction for deviations in permittivity and conductivity SC
I.4 Uncertainties that are dependent on the DUT typically to be assessed and documented by the system manufacturer MD [Go to Page]
I.4.1 Probe or probe array coupling with the DUT PC [Go to Page]
I.4.1.1 Scanning systems
I.4.1.2 Array systems
I.4.2 Modulation response MOD
I.4.3 Broadband Signal BBS
I.4.4 Integration time IT
I.4.5 Measured SAR drift SD
I.4.6 Data acquisition bandwidth DAB
I.5 Uncertainties related to the measurement environment typically to be assessed and documented by the user of the system ME [Go to Page]
I.5.1 Device holder DH
I.5.2 Device positioning DP
I.5.3 RF ambient conditions AC
I.5.4 Measurement system drift and noise DN
I.6 Uncertainties of validation antennas MV [Go to Page]
I.6.1 Deviation of experimental antennas DEX
I.6.2 Power measurement uncertainty PMU
I.6.3 Other uncertainty contributions when using validation antennas OVS
Annex J (informative) Analytical reference functions [Go to Page]
J.1 Reference functions
J.2 Supplemental files for reference functions
Annex K (informative) Validation procedure and test set selection concept [Go to Page]
K.1 General
K.2 Concept
K.3 System-specific aspects [Go to Page]
K.3.1 General
K.3.2 Direct measurement scanning systems using broadband spectral integration probes
K.3.3 Array systems using field reconstruction methods
K.4 GPI model creation [Go to Page]
K.4.1 Test set generation
K.4.2 Measurement
K.4.3 Analysis and model creation
K.5 GPI model confirmation
K.6 Critical data space search
Annex L (informative) Gaussian process interpolation [Go to Page]
L.1 General
L.2 Gaussian processes
L.3 Kriging [Go to Page]
L.3.1 General
L.3.2 Ordinary Kriging
L.4 Anisotropic models
L.5 An approach to thresholding
L.6 Searching for out of bound regions [Go to Page]
L.6.1 General
L.6.2 Example [Go to Page]
L.6.2.1 General
L.6.2.2 Discussion
L.7 Sample size evaluation [Go to Page]
L.7.1 General
L.7.2 Semivariogram modelling
L.7.3 Searching out of bound elements
L.8 Model validation [Go to Page]
L.8.1 General
L.8.2 Goodness of fit
L.8.3 Residuals validation
L.9 Data example
Annex M (informative) E-Field frequency-dependent SAR expressions for narrowband, wideband, and multiple-uplink RF-spectra emissions from a DUT
Bibliography [Go to Page]

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23/30436008 DC BS EN IEC/IEEE 62209-3 AMD 1. 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 3. Vector measurement-based, 2023

To continue with accurate pricing,
please select your company type below: