IEEE 1528 2003
$52.54
IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques
| Published By | Publication Date | Number of Pages |
| IEEE | 2003 | 158 |
New IEEE Standard – Active. IEEE Std 1528-2003 specifies protocols and test procedures for the measurement of the peak spatial-average SAR induced inside a simplified model of the head of users of certain handheld radio transceivers. These transceivers are intended to be used for personal wireless communications services, operate in the 300 MHz3 GHz frequency range, and are intended to be operated while held against the ear. The results obtained by following the protocols specified in this recommended practice represent a conservative estimate of the peak spatial-average SAR induced in the head of a significant majority of persons, subject to measurement and other uncertainties that are defined in this standard. The results are representative of those expected during conditions of normal use of a handheld wireless device. It is not the intent of this recommended practice to provide a result representative of the absolute maximum SAR value possible under every conceivable combination of head size, head shape, handset orientation, and spacing relative to the head. The measurement of SAR induced in the external tissues of the head, e.g., the external ear (pinna), is not addressed in this standard. The following items are described in detail: measurement concepts, measurement techniques, instruments, calibration techniques, simulated-tissue (phantom) models, including homogeneous anatomical models of the human head and simple phantoms for validation of the SAR measurement system, and the limitations of these systems when used for measuring the spatial-peak mass-averaged SAR. Procedures for calibrating electric field (E-field) probes used for SAR measurements and assessing the SAR measurement and system uncertainties are provided in the annexes. This recommended practice is intended primarily for use by engineers and other specialists who are familiar with electromagnetic (EM) theory and measurement techniques. This standard does not recommend specific SAR limit values since these are found i
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | Title Page |
| 5 | Introduction |
| 6 | Participants |
| 8 | Contents |
| 10 | 1. Overview 1.1 Scope |
| 11 | 1.2 Purpose 1.3 Background |
| 13 | 1.4 Rationale |
| 18 | 2. References |
| 19 | 3. Definitions |
| 29 | 4. Electric field (E-field) probe and readout electronics 4.1 Introduction 4.2 E-field probe requirements |
| 35 | 4.3 Characteristics of the probe readout electronics |
| 37 | 4.4 Probe calibration |
| 39 | 5. Phantom models 5.1 Phantom head models: requirements |
| 43 | 5.2 Tissue and tissue-equivalent liquid properties |
| 44 | 5.3 Recommended phantom models |
| 48 | 6. SAR measurement protocols 6.1 Introduction |
| 49 | 6.2 Setup protocol 6.3 Operational configuration of wireless devices under test |
| 51 | 6.4 Device test positions relative to the head |
| 54 | 6.5 Recommendations for scanning, interpolation, and extrapolation methods |
| 57 | 6.6 Recommended practices and procedures for SAR evaluation |
| 61 | 7. Documenting SAR evaluations 7.1 Data reporting |
| 64 | 7.2 SAR measurement uncertainty considerations |
| 68 | 8. SAR measurement system verification 8.1 Introduction |
| 69 | 8.2 System check |
| 71 | 8.3 System validation |
| 74 | 8.4 Interlaboratory comparison guidelines |
| 76 | Annex A |
| 89 | Annex B |
| 96 | Annex C |
| 98 | Annex D |
| 110 | Annex E |
| 132 | Annex F |
| 145 | Annex G |
| 147 | Annex H |
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