SAR Report Appendix C

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Report No. M170217F Page 213 of 253 APPENDIX C DESCRIPTION OF SAR MEASUREMENT SYSTEM Probe Positioning System The measurements were performed with the state of the art automated near-field scanning system DASY5 Version 52 (Build 1258) from Schmid & Partner Engineering AG (SPEAG). The system is based on a high precision 6-axis robot (working range greater than 1.1m), which positions the SAR measurement probes with a positional repeatability of better than ±0.02 mm. The DASY5 fully complies with the IEEE 1528 and EN62209 SAR measurement requirements. E-Field Probe Type and Performance The SAR measurements were conducted with the dosimetric probe ET3DV6 (manufactured by SPEAG). The SAR probes are designed in the classical triangular configuration and optimised for dosimetric evaluation. The probe has been calibrated and found to be accurate to better than ±0.25 dB. The probe is suitable for measurements close to material discontinuity at the surface of the phantom. Data Acquisition Electronics The data acquisition electronics (DAE3) consists of a highly sensitive electrometer-grade preamplifier with auto- zeroing, a channel and gain switching multiplexer, a fast 16 bit AD-converter and a command decoder and control logic unit. The input impedance of the DAE3 box is 200 MΩ; the inputs are symmetrical and floating. Common mode rejection is above 80dB.Transmission to the PC-card is accomplished through an optical downlink for data and status information as well as an optical uplink for commands and the clock. The mechanical probe-mounting device includes two different sensor systems for frontal and sideways probe contacts. They are used for mechanical surface detection and probe collision detection. Device Holder for DASY5 The DASY5 device holder supplied by SPEAG is designed to cope with different positions given in the standard. The DASY5 device holder is made of low-loss material having the following dielectric parameters: relative permittivity ε=3 and loss tangent δ=0.02. The amount of dielectric material has been reduced in the closest vicinity of the device. Refer to Appendix A for photograph of device positioning. Accredited for compliance with ISO/IEC 17025. The results of the test, calibrations and/or measurement included in this document are traceable to Australian/national standards. NATA is a signatory to the ILAC Mutual Recognition Arrangement for the mutual recognition of the equivalence of testing, calibration and inspection reports. This document shall not be reproduced except in full.

Report No. M170217F Page 214 of 253 Liquid Depth 15cm During the SAR measurement process the liquid level was maintained to a level of 15cm with a tolerance of 0.5cm. Photo of liquid Depth in Flat Phantom Phantom Properties The phantom used during the testing complies with the IEEE 1528 and EN62209-1 and EN62209-2 SAR measurement requirements. Table 38 Phantom Properties Phantom Properties Depth of Phantom 19 cm Width of flat section 40 cm Length of flat section 60 cm Thickness of flat section 2.0mm +/-0.2mm (flat section) Dielectric Constant <5.0 Loss Tangent <0.05 Accredited for compliance with ISO/IEC 17025. The results of the test, calibrations and/or measurement included in this document are traceable to Australian/national standards. NATA is a signatory to the ILAC Mutual Recognition Arrangement for the mutual recognition of the equivalence of testing, calibration and inspection reports. This document shall not be reproduced except in full.

Report No. M170217F Page 215 of 253 Tissue Material Properties The dielectric parameters of the human tissue simulating liquid were measured prior to SAR assessment using the HP85070A dielectric probe kit and HP8753D Network Analyser. The actual dielectric parameters are shown in the following table. Table: Measured Head Simulating Liquid Dielectric Values at 850MHz Table 39 Frequency ∈r σ ρ Band (target) (target) kg/m3 825 MHz 41.5 ±5% 0.90 ±5% 1000 835 MHz 41.5 ±5% 0.90 ±5% 1000 850 MHz 41.5 ±5% 0.90 ±5% 1000 Note: The head liquid parameters were within the required tolerances of ±5 Table: Measured Body Simulating Liquid Dielectric Values at 850MHz Table 40 Frequency ∈r σ ρ Band (target) (target) kg/m3 825 MHz 55.2 ±5% 0.97 ±5% 1000 835 MHz 55.2 ±5% 0.97 ±5% 1000 850 MHz 55.2 ±5% 0.97 ±5% 1000 Note: The body liquid parameters were within the required tolerances of ±5%. Table: Measured Head Simulating Liquid Dielectric Values at 1880MHz Table 41 Frequency ∈r σ ρ Band (target) (target) kg/m3 1850 MHz 40.0 ±5% 1.40 ±5% 1000 1880.0 MHz 53.3 ±5% 1.49 ±5% 1000 1910 MHz 53.3 ±5% 1.49 ±5% 1000 Note: The head liquid parameters were within the required tolerances of ±5%. Accredited for compliance with ISO/IEC 17025. The results of the test, calibrations and/or measurement included in this document are traceable to Australian/national standards. NATA is a signatory to the ILAC Mutual Recognition Arrangement for the mutual recognition of the equivalence of testing, calibration and inspection reports. This document shall not be reproduced except in full.

Report No. M170217F Page 216 of 253 Table: Measured Body Simulating Liquid Dielectric Values at 1880MHz Table 42 Frequency ∈r σ ρ 3 Band (target) (target) kg/m 1850 MHz 53.3 ±5% 1.52 ±5% 1000 1880.0 MHz 53.3 ±5% 1.52 ±5% 1000 1910 MHz 53.3 ±5% 1.52 ±5% 1000 Note: The body liquid parameters were within the required tolerances of ±5%. Simulated Tissue Composition Used for SAR Test The tissue simulating liquids are created prior to the SAR evaluation and often require slight modification each day to obtain the correct dielectric parameters. Table: Tissue Type: Brain @ 850MHz Table: Tissue Type: Brain @ 1880MHz MHz Volume of Liquid: 30 Litres Volume of Liquid: 30 Litres Table 43 Approximate % By Weight Approximate % By Weight Composition Composition Distilled Water 41.05 Distilled Water 61.17 Salt 1.35 Salt 0.31 Sugar 56.5 Bactericide 0.29 HEC 1.0 Triton X-100 38.23 Bactericide 0.1 Table: Tissue Type: Body @ 850MHz Table: Tissue Type: Body @ 1880MHz MHz Volume of Liquid: 30 Litres Volume of Liquid: 30 Litres Table 44 Approximate % By Weight Approximate % By Weight Composition Composition Distilled Water 56 Distilled Water 40.4 Salt 0.76 Salt 0.5 Sugar 41.76 Sugar 58 HEC 1.21 HEC 1 Bactericide 0.27 Bactericide 0.1 Accredited for compliance with ISO/IEC 17025. The results of the test, calibrations and/or measurement included in this document are traceable to Australian/national standards. NATA is a signatory to the ILAC Mutual Recognition Arrangement for the mutual recognition of the equivalence of testing, calibration and inspection reports. This document shall not be reproduced except in full.


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Document Modified: 2017-05-24 06:52:05
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