I18Z60848-SEM05_SAR_Rev2_3

FCC ID: 2AM86WC210

RF Exposure Info

Download: PDF
FCCID_3962323

No. I18Z60848-SEM05 Page 87 of 172 LTE2500-TDD41_CH40620 Bottom Date: 6/24/2018 Electronics: DAE4 Sn1525 Medium: body 2600 MHz Medium parameters used: f = 2593 MHz; σ = 2.124 mho/m; εr = 53.52; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC, Liquid Temperature: 22.3oC Communication System: LTE2500-TDD41 2593 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(7.84,7.84,7.84) Area Scan (71x121x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Maximum value of SAR (interpolated) = 0.425 W/kg Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 12.21 V/m; Power Drift = 0.02 dB Peak SAR (extrapolated) = 0.701 W/kg SAR(1 g) = 0.32 W/kg; SAR(10 g) = 0.169 W/kg Maximum value of SAR (measured) = 0.447 W/kg Fig A.15 ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 88 of 172 LTE2500-TDD41_CH41055 Left Cheek Date: 6/24/2018 Electronics: DAE4 Sn1525 Medium: head 2600 MHz Medium parameters used: f = 2636.5 MHz; σ = 1.974 mho/m; εr = 39.2; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC, Liquid Temperature: 22.3oC Communication System: LTE2500-TDD41 2636.5 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(7.76,7.76,7.76) Area Scan (71x121x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Maximum value of SAR (interpolated) = 0.300 W/kg Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 3.319 V/m; Power Drift = 0.07 dB Peak SAR (extrapolated) = 0.431 W/kg SAR(1 g) = 0.23 W/kg; SAR(10 g) = 0.119 W/kg Maximum value of SAR (measured) = 0.292 W/kg Fig A.16 ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 89 of 172 LTE2500-TDD41_CH41055 Rear Date: 6/24/2018 Electronics: DAE4 Sn1525 Medium: body 2600 MHz Medium parameters used: f = 2636.5 MHz; σ = 2.165 mho/m; εr = 53.47; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC, Liquid Temperature: 22.3oC Communication System: LTE2500-TDD41 2636.5 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(7.84,7.84,7.84) Area Scan (71x121x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Maximum value of SAR (interpolated) = 0.345 W/kg Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 4.069 V/m; Power Drift = -0.09 dB Peak SAR (extrapolated) = 0.487 W/kg SAR(1 g) = 0.249 W/kg; SAR(10 g) = 0.13 W/kg Maximum value of SAR (measured) = 0.318 W/kg Fig A.17 ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 90 of 172 WLAN2450_CH6 Rear Date: 6/23/2018 Electronics: DAE4 Sn1525 Medium: body 2450 MHz Medium parameters used: f = 2437 MHz; σ = 1.924 mho/m; εr = 52.11; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC, Liquid Temperature: 22.3oC Communication System: WLAN2450 2437 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(8.09,8.09,8.09) Area Scan (71x121x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Maximum value of SAR (interpolated) = 0.312 W/kg Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 5.828 V/m; Power Drift = -0.04 dB Peak SAR (extrapolated) = 0.294 W/kg SAR(1 g) = 0.165 W/kg; SAR(10 g) = 0.085 W/kg Maximum value of SAR (measured) = 0.207 W/kg Fig A.18 ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 91 of 172 WLAN2450_CH11 Left Cheek Date: 6/23/2018 Electronics: DAE4 Sn1525 Medium: head 2450 MHz Medium parameters used: f = 2462 MHz; σ = 1.802 mho/m; εr = 38.74; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC, Liquid Temperature: 22.3oC Communication System: WLAN2450 2462 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(7.89,7.89,7.89) Area Scan (71x121x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Maximum value of SAR (interpolated) = 1.20 W/kg Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 11.48 V/m; Power Drift = 0.02 dB Peak SAR (extrapolated) = 1.65 W/kg SAR(1 g) = 0.862 W/kg; SAR(10 g) = 0.438 W/kg Maximum value of SAR (measured) = 1.06 W/kg Fig A.19 ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 92 of 172 Fig.A.1- 1 Z-Scan at power reference point (BC0) Fig.A.1- 2 Z-Scan at power reference point (BC0) Fig.A.1- 3 Z-Scan at power reference point (BC1) ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 93 of 172 Fig.A.1- 4 Z-Scan at power reference point (BC1) Fig.A.1- 5 Z-Scan at power reference point (BC1) Fig.A.1- 6 Z-Scan at power reference point (BC10) ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 94 of 172 Fig.A.1- 7 Z-Scan at power reference point (BC10) Fig.A.1- 8 Z-Scan at power reference point (LTE band13) Fig.A.1- 9 Z-Scan at power reference point (LTE band13) ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 95 of 172 Fig.A.1- 10 Z-Scan at power reference point (LTE band25) Fig.A.1- 11 Z-Scan at power reference point (LTE band25) Fig.A.1- 12 Z-Scan at power reference point (LTE band25) ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 96 of 172 Fig.A.1- 13 Z-Scan at power reference point (LTE band26) Fig.A.1- 14 Z-Scan at power reference point (LTE band26) Fig.A.1- 15 Z-Scan at power reference point (LTE band41) ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 97 of 172 Fig.A.1- 16 Z-Scan at power reference point (LTE band41) Fig.A.1- 17 Z-Scan at power reference point (LTE band41) Fig.A.1- 18 Z-Scan at power reference point (Wifi2450) ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 98 of 172 Fig.A.1- 19 Z-Scan at power reference point (Wifi2450) ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 99 of 172 ANNEX B System Verification Results 750 MHz Date: 6/20/2018 Electronics: DAE4 Sn1525 Medium: Head 750 MHz Medium parameters used: f = 750 MHz; σ =0.902 mho/m; εr = 42.12; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC Liquid Temperature: 22.3oC Communication System: CW Frequency: 750 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(10.57,10.57,10.57) System Validation /Area Scan (81x191x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Reference Value = 59.8 V/m; Power Drift = 0.02 Fast SAR: SAR(1 g) = 2.1 W/kg; SAR(10 g) = 1.34 W/kg Maximum value of SAR (interpolated) = 2.75 W/kg System Validation /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value =59.8 V/m; Power Drift = 0.02 dB Peak SAR (extrapolated) = 3.25 W/kg SAR(1 g) = 2.08 W/kg; SAR(10 g) = 1.34 W/kg Maximum value of SAR (measured) = 2.81 W/kg 0 dB = 2.81 W/kg = 4.49 dB W/kg Fig.B.1 validation 750 MHz 250mW ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 100 of 172 750 MHz Date: 6/20/2018 Electronics: DAE4 Sn1525 Medium: Body 750 MHz Medium parameters used: f = 750 MHz; σ =0.962 mho/m; εr = 54.81; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC Liquid Temperature: 22.3oC Communication System: CW Frequency: 750 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(10.63,10.63,10.63) System Validation /Area Scan (81x191x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Reference Value = 57.25 V/m; Power Drift = 0.02 Fast SAR: SAR(1 g) = 2.19 W/kg; SAR(10 g) = 1.42 W/kg Maximum value of SAR (interpolated) = 3.29 W/kg System Validation /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value =57.25 V/m; Power Drift = 0.02 dB Peak SAR (extrapolated) = 3.37 W/kg SAR(1 g) = 2.17 W/kg; SAR(10 g) = 1.42 W/kg Maximum value of SAR (measured) = 2.99 W/kg 0 dB = 2.99 W/kg = 4.76 dB W/kg Fig.B.2 validation 750 MHz 250mW ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 101 of 172 835 MHz Date: 6/21/2018 Electronics: DAE4 Sn1525 Medium: Head 835 MHz Medium parameters used: f = 835 MHz; σ =0.899 mho/m; εr = 41.3; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC Liquid Temperature: 22.3oC Communication System: CW Frequency: 835 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(10.28,10.28,10.28) System Validation /Area Scan (81x191x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Reference Value = 64.8 V/m; Power Drift = -0.06 Fast SAR: SAR(1 g) = 2.36 W/kg; SAR(10 g) = 1.51 W/kg Maximum value of SAR (interpolated) = 3.77 W/kg System Validation /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value =64.8 V/m; Power Drift = -0.06 dB Peak SAR (extrapolated) = 4.01 W/kg SAR(1 g) = 2.36 W/kg; SAR(10 g) = 1.49 W/kg Maximum value of SAR (measured) = 3.52 W/kg 0 dB = 3.52 W/kg = 5.47 dB W/kg Fig.B.3 validation 835 MHz 250mW ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 102 of 172 835 MHz Date: 6/21/2018 Electronics: DAE4 Sn1525 Medium: Body 835 MHz Medium parameters used: f = 835 MHz; σ =0.952 mho/m; εr = 54.4; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC Liquid Temperature: 22.3oC Communication System: CW Frequency: 835 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(10.21,10.21,10.21) System Validation /Area Scan (81x191x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Reference Value = 58.53 V/m; Power Drift = -0.02 Fast SAR: SAR(1 g) = 2.35 W/kg; SAR(10 g) = 1.52 W/kg Maximum value of SAR (interpolated) = 3.58 W/kg System Validation /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value =58.53 V/m; Power Drift = -0.02 dB Peak SAR (extrapolated) = 3.69 W/kg SAR(1 g) = 2.33 W/kg; SAR(10 g) = 1.55 W/kg Maximum value of SAR (measured) = 3.21 W/kg 0 dB = 3.21 W/kg = 5.07 dB W/kg Fig.B.4 validation 835 MHz 250mW ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 103 of 172 1900 MHz Date: 6/22/2018 Electronics: DAE4 Sn1525 Medium: Head 1900 MHz Medium parameters used: f = 1900 MHz; σ =1.418 mho/m; εr = 39.95; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC Liquid Temperature: 22.3oC Communication System: CW Frequency: 1900 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(8.39,8.39,8.39) System Validation /Area Scan (81x191x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Reference Value = 107.7 V/m; Power Drift = -0.01 Fast SAR: SAR(1 g) = 10.02 W/kg; SAR(10 g) = 5.28 W/kg Maximum value of SAR (interpolated) = 14.9 W/kg System Validation /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value =107.7 V/m; Power Drift = -0.01 dB Peak SAR (extrapolated) = 18.22 W/kg SAR(1 g) = 10.08 W/kg; SAR(10 g) = 5.16 W/kg Maximum value of SAR (measured) = 15.17 W/kg 0 dB = 15.17 W/kg = 11.81 dB W/kg Fig.B.5 validation 1900 MHz 250mW ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 104 of 172 1900 MHz Date: 6/22/2018 Electronics: DAE4 Sn1525 Medium: Body 1900 MHz Medium parameters used: f = 1900 MHz; σ =1.502 mho/m; εr = 54.08; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC Liquid Temperature: 22.3oC Communication System: CW Frequency: 1900 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(8.32,8.32,8.32) System Validation /Area Scan (81x191x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Reference Value = 101.44 V/m; Power Drift = -0.03 Fast SAR: SAR(1 g) = 10.14 W/kg; SAR(10 g) = 5.29 W/kg Maximum value of SAR (interpolated) = 17.44 W/kg System Validation /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value =101.44 V/m; Power Drift = -0.03 dB Peak SAR (extrapolated) = 17.82 W/kg SAR(1 g) = 10.03 W/kg; SAR(10 g) = 5.33 W/kg Maximum value of SAR (measured) = 14.3 W/kg 0 dB = 14.3 W/kg = 11.55 dB W/kg Fig.B.6 validation 1900 MHz 250mW ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 105 of 172 2450 MHz Date: 6/23/2018 Electronics: DAE4 Sn1525 Medium: Head 2450 MHz Medium parameters used: f = 2450 MHz; σ =1.791 mho/m; εr = 38.75; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC Liquid Temperature: 22.3oC Communication System: CW Frequency: 2450 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(7.89,7.89,7.89) System Validation /Area Scan (81x191x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Reference Value = 112.35 V/m; Power Drift = -0.05 Fast SAR: SAR(1 g) = 12.83 W/kg; SAR(10 g) = 6.09 W/kg Maximum value of SAR (interpolated) = 21.22 W/kg System Validation /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value =112.35 V/m; Power Drift = -0.05 dB Peak SAR (extrapolated) = 27.1 W/kg SAR(1 g) = 13 W/kg; SAR(10 g) = 6.12 W/kg Maximum value of SAR (measured) = 21.84 W/kg 0 dB = 21.84 W/kg = 13.39 dB W/kg Fig.B.7 validation 2450 MHz 250mW ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 106 of 172 2450 MHz Date: 6/23/2018 Electronics: DAE4 Sn1525 Medium: Body 2450 MHz Medium parameters used: f = 2450 MHz; σ =1.936 mho/m; εr = 52.09; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC Liquid Temperature: 22.3oC Communication System: CW Frequency: 2450 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(8.09,8.09,8.09) System Validation /Area Scan (81x191x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Reference Value = 104.59 V/m; Power Drift = 0.04 Fast SAR: SAR(1 g) = 12.37 W/kg; SAR(10 g) = 5.89 W/kg Maximum value of SAR (interpolated) = 24.96 W/kg System Validation /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value =104.59 V/m; Power Drift = 0.04 dB Peak SAR (extrapolated) = 25.6 W/kg SAR(1 g) = 12.64 W/kg; SAR(10 g) = 6.03 W/kg Maximum value of SAR (measured) = 20.02 W/kg 0 dB = 20.02 W/kg = 13.01 dB W/kg Fig.B.8 validation 2450 MHz 250mW ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 107 of 172 2600 MHz Date: 6/24/2018 Electronics: DAE4 Sn1525 Medium: Head 2600 MHz Medium parameters used: f = 2600 MHz; σ =1.94 mho/m; εr = 39.24; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC Liquid Temperature: 22.3oC Communication System: CW Frequency: 2600 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(7.76,7.76,7.76) System Validation /Area Scan (81x191x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Reference Value = 112.75 V/m; Power Drift = 0.08 Fast SAR: SAR(1 g) = 14.54 W/kg; SAR(10 g) = 6.54 W/kg Maximum value of SAR (interpolated) = 24.73 W/kg System Validation /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value =112.75 V/m; Power Drift = 0.08 dB Peak SAR (extrapolated) = 32.39 W/kg SAR(1 g) = 14.41 W/kg; SAR(10 g) = 6.39 W/kg Maximum value of SAR (measured) = 24.9 W/kg 0 dB = 24.9 W/kg = 13.96 dB W/kg Fig.B.9 validation 2600 MHz 250mW ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 108 of 172 2600 MHz Date: 6/24/2018 Electronics: DAE4 Sn1525 Medium: Body 2600 MHz Medium parameters used: f = 2600 MHz; σ =2.131 mho/m; εr = 53.51; ρ = 1000 kg/m3 Ambient Temperature: 22.5oC Liquid Temperature: 22.3oC Communication System: CW Frequency: 2600 MHz Duty Cycle: 1:1 Probe: EX3DV4 – SN7464 ConvF(7.84,7.84,7.84) System Validation /Area Scan (81x191x1): Interpolated grid: dx=1.000 mm, dy=1.000 mm Reference Value = 105.49 V/m; Power Drift = -0.07 Fast SAR: SAR(1 g) = 13.98 W/kg; SAR(10 g) = 6.1 W/kg Maximum value of SAR (interpolated) = 30.32 W/kg System Validation /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value =105.49 V/m; Power Drift = -0.07 dB Peak SAR (extrapolated) = 30.23 W/kg SAR(1 g) = 14.05 W/kg; SAR(10 g) = 6.24 W/kg Maximum value of SAR (measured) = 23.71 W/kg 0 dB = 23.71 W/kg = 13.75 dB W/kg Fig.B.10 validation 2600 MHz 250mW ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 109 of 172 The SAR system verification must be required that the area scan estimated 1-g SAR is within 3% of the zoom scan 1-g SAR. Table B.1 Comparison between area scan and zoom scan for system verification Area scan Zoom scan Date Band Position Drift (%) (1g) (1g) 750 Head 2.1 2.08 0.96 2018-6-20 750 Body 2.19 2.17 0.92 835 Head 2.36 2.36 0.00 2018-6-21 835 Body 2.35 2.33 0.86 1900 Head 10.02 10.08 -0.60 2018-6-22 1900 Body 10.14 10.03 1.10 2450 Head 12.83 13 -1.31 2018-6-23 2450 Body 12.37 12.64 -2.14 2600 Head 14.54 14.41 0.90 2018-6-24 2600 Body 13.98 14.05 -0.50 ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 110 of 172 ANNEX C SAR Measurement Setup C.1 Measurement Set-up The Dasy4 or DASY5 system for performing compliance tests is illustrated above graphically. This system consists of the following items: Picture C.1 SAR Lab Test Measurement Set-up  A standard high precision 6-axis robot (Stäubli TX=RX family) with controller, teach pendant and software. An arm extension for accommodating the data acquisition electronics (DAE).  An isotropic field probe optimized and calibrated for the targeted measurement.  A data acquisition electronics (DAE) which performs the signal amplification, signal multiplexing, AD-conversion, offset measurements, mechanical surface detection, collision detection, etc. The unit is battery powered with standard or rechargeable batteries. The signal is optically transmitted to the EOC.  The Electro-optical converter (EOC) performs the conversion from optical to electrical signals for the digital communication to the DAE. To use optical surface detection, a special version of the EOC is required. The EOC signal is transmitted to the measurement server.  The function of the measurement server is to perform the time critical tasks such as signal filtering, control of the robot operation and fast movement interrupts.  The Light Beam used is for probe alignment. This improves the (absolute) accuracy of the probe positioning.  A computer running WinXP and the DASY4 or DASY5 software.  Remote control and teach pendant as well as additional circuitry for robot safety such as  warning lamps, etc.  The phantom, the device holder and other accessories according to the targeted measurement. ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 111 of 172 C.2 Dasy4 or DASY5 E-field Probe System The SAR measurements were conducted with the dosimetric probe designed in the classical triangular configuration and optimized for dosimetric evaluation. The probe is constructed using the thick film technique; with printed resistive lines on ceramic substrates. The probe is equipped with an optical multifiber line ending at the front of the probe tip. It is connected to the EOC box on the robot arm and provides an automatic detection of the phantom surface. Half of the fibers are connected to a pulsed infrared transmitter, the other half to a synchronized receiver. As the probe approaches the surface, the reflection from the surface produces a coupling from the transmitting to the receiving fibers. This reflection increases first during the approach, reaches maximum and then decreases. If the probe is flatly touching the surface, the coupling is zero. The distance of the coupling maximum to the surface is independent of the surface reflectivity and largely independent of the surface to probe angle. The DASY4 or DASY5 software reads the reflection durning a software approach and looks for the maximum using 2nd ord curve fitting. The approach is stopped at reaching the maximum. Probe Specifications: Model: ES3DV3, EX3DV4 Frequency 10MHz — 6.0GHz(EX3DV4) Range: 10MHz — 4GHz(ES3DV3) Calibration: In head and body simulating tissue at Frequencies from 835 up to 5800MHz Linearity: ± 0.2 dB(30 MHz to 6 GHz) for EX3DV4 Picture C.2 Near-field Probe ± 0.2 dB(30 MHz to 4 GHz) for ES3DV3 Dynamic Range: 10 mW/kg — 100W/kg Probe Length: 330 mm Probe Tip Length: 20 mm Body Diameter: 12 mm Tip Diameter: 2.5 mm (3.9 mm for ES3DV3) Tip-Center: 1 mm (2.0mm for ES3DV3) Application: SAR Dosimetry Testing Compliance tests of mobile phones Dosimetry in strong gradient fields Picture C.3 E-field Probe C.3 E-field Probe Calibration Each E-Probe/Probe Amplifier combination has unique calibration parameters. A TEM cell calibration procedure is conducted to determine the proper amplifier settings to enter in the probe parameters. The amplifier settings are determined for a given frequency by subjecting the probe to a known E-field density (1 mW/cm2) using an RF Signal generator, TEM cell, and RF Power Meter. The free space E-field from amplified probe outputs is determined in a test chamber. This calibration can be performed in a TEM cell if the frequency is below 1 GHz and inn a waveguide or other methodologies above 1 GHz for free space. For the free space calibration, the probe is placed ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 112 of 172 in the volumetric center of the cavity and at the proper orientation with the field. The probe is then rotated 360 degrees until the three channels show the maximum reading. The power density readings equates to 1 mW/ cm2.. E-field temperature correlation calibration is performed in a flat phantom filled with the appropriate simulated brain tissue. The E-field in the medium correlates with the temperature rise in the dielectric medium. For temperature correlation calibration a RF transparent thermistor-based temperature probe is used in conjunction with the E-field probe. T SAR  C t Where: ∆t = Exposure time (30 seconds), C = Heat capacity of tissue (brain or muscle), ∆T = Temperature increase due to RF exposure. 2 E  SAR   Where: σ = Simulated tissue conductivity, ρ = Tissue density (kg/m3). C.4 Other Test Equipment C.4.1 Data Acquisition Electronics(DAE) The data acquisition electronics consist 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 with a control logic unit. Transmission to the measurement server 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. The input impedance of the DAE is 200 MOhm; the inputs are symmetrical and floating. Common mode rejection is above 80 dB. PictureC.4: DAE ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 113 of 172 C.4.2 Robot The SPEAG DASY system uses the high precision robots (DASY4: RX90XL; DASY5: RX160L) type from Stäubli SA (France). For the 6-axis controller system, the robot controller version from Stäubli is used. The Stäubli robot series have many features that are important for our application:  High precision (repeatability 0.02mm)  High reliability (industrial design)  Low maintenance costs (virtually maintenance free due to direct drive gears; no belt drives)  Jerk-free straight movements (brushless synchron motors; no stepper motors)  Low ELF interference (motor control fields shielded via the closed metallic construction shields) Picture C.5 DASY 4 Picture C.6 DASY 5 C.4.3 Measurement Server The Measurement server is based on a PC/104 CPU broad with CPU (dasy4: 166 MHz, Intel Pentium; DASY5: 400 MHz, Intel Celeron), chipdisk (DASY4: 32 MB; DASY5: 128MB), RAM (DASY4: 64 MB, DASY5: 128MB). The necessary circuits for communication with the DAE electronic box, as well as the 16 bit AD converter system for optical detection and digital I/O interface are contained on the DASY I/O broad, which is directly connected to the PC/104 bus of the CPU broad. The measurement server performs all real-time data evaluation of field measurements and surface detection, controls robot movements and handles safety operation. The PC operating system cannot interfere with these time critical processes. All connections are supervised by a watchdog, and disconnection of any of the cables to the measurement server will automatically disarm the robot and disable all program-controlled robot movements. Furthermore, the measurement server is equipped with an expansion port which is reserved for future applications. Please note that this expansion port does not have a standardized pinout, and therefore only devices provided by SPEAG can be connected. Devices from any other supplier could seriously damage the measurement server. Picture C.7 Server for DASY 4 Picture C.8 Server for DASY 5 ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 114 of 172 C.4.4 Device Holder for Phantom The SAR in the phantom is approximately inversely proportional to the square of the distance between the source and the liquid surface. For a source at 5mm distance, a positioning uncertainty of ±0.5mm would produce a SAR uncertainty of ±20%. Accurate device positioning is therefore crucial for accurate and repeatable measurements. The positions in which the devices must be measured are defined by the standards. The DASY device holder is designed to cope with the different positions given in the standard. It has two scales for device rotation (with respect to the body axis) and device inclination (with respect to the line between the ear reference points). The rotation centers for both scales is the ear reference point (ERP). Thus the device needs no repositioning when changing the angles. The DASY device holder is constructed of low-loss POM material having the following dielectric parameters: relative permittivity =3 and loss tangent  =0.02. The amount of dielectric material has been reduced in the closest vicinity of the device, since measurements have suggested that the influence of the clamp on the test results could thus be lowered. <Laptop Extension Kit> The extension is lightweight and made of POM, acrylic glass and foam. It fits easily on the upper part of the Mounting Device in place of the phone positioner. The extension is fully compatible with the Twin-SAM and ELI phantoms. Picture C.9-1: Device Holder Picture C.9-2: Laptop Extension Kit C.4.5 Phantom The SAM Twin Phantom V4.0 is constructed of a fiberglass shell integrated in a table. The shape of the shell is based on data from an anatomical study designed to Represent the 90th percentile of the population. The phantom enables the dissymmetric evaluation of SAR for both left and right handed handset usage, as well as body-worn usage using the flat phantom region. Reference markings on the Phantom allow the complete setup of all predefined phantom positions and measurement grids by manually teaching three points in the robot. The shell phantom has a 2mm shell thickness (except the ear region where shell thickness increases to 6 mm). Shell Thickness: 2 ± 0. 2 mm Filling Volume: Approx. 25 liters Dimensions: 810 x l000 x 500 mm (H x L x W) Available: Special ©Copyright. All rights reserved by CTTL.

No. I18Z60848-SEM05 Page 115 of 172 Picture C.10: SAM Twin Phantom ©Copyright. All rights reserved by CTTL.


Document Created: 2018-08-13 10:59:33
Document Modified: 2018-08-13 10:59:33
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC