SAR PROBE CALIBRATION

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Calibration Laboratory of Schweizerischer Kalibrierdienst Schmid & Partner Service suisse d‘étalonnage Engineering AG Servizio svizzero di taratura Zeughausstrasse 43, 8004 Zurich, Switzerland Swiss Calibration Service Accredited by the Swiss Federal Office of Metrology and Accreditation Accreditation No.: SCS 108 The Swiss Accreditation Service is one of the signatories to the EA Multilateral Agreement for the recognition of calibration certificates Object Calibration procedure(s) Calibration date: Condition of the calibrated item This calibration certificate documents the traceability to national standards, which realize the physical units of measurements (S1). The measurements and the uncertainties with confidence probability are given on the following pages and are part of the certificate. All calibrations have been conducted in the closed faboratory facifity: environment temperature (22 + 3)°C and humidity < 70%. Calibration Equipment used (M&TE critical for calibration) Primary Standards ID # Cal Date (Calibrated by, Certificate No.) Scheduled Calibration Power meter E4419B GB41293874 3—May—05 (METAS, No. 251—00466) May—06 Power sensor E4412A MY41495277 3—May—05 (METAS, No. 251—00466) May—06 Power sensor E4412A MY41498087 3—May—05 (METAS, No. 251—00466) May—06 Reference 3 dB Attenuator SN: $5054 (3c) 10—Aug—04 (METAS, No. 251—00403) Aug—05 Reference 20 dB Attenuator SN: S5086 (20b) 3—May—05 (METAS, No. 251—00467) May—06 Reference 30 dB Attenuator SN: S5129 (30b) 10—Aug—04 (METAS, No. 251—00404) Aug—05 Reference Probe ES3DV2 SN: 3013 7—Jan—05 (SPEAG, No. ES3—3013_Jan05) Jan—06 DAE4 SN: 617 19—Jan—05 (SPEAG, No. DAE4—617_Jan05) Jan—06 Secondary Standards ID # Check Date (in house) Scheduled Check RF generator HP 8648C US3642U01700 4—Aug—99 (SPEAG, in house check Dec—03) In house check: Dec—05 Network Analyzer HP 8753E US37390585 18—Oct—01 (SPEAG, in house check Nov—04) In house check: Nov 05 Name Function Signature Calibrated by: Approved by: Issued: May 21, 2005 This calibration certificate shall not be reproduced except in full without written approval of the laboratory. Certificate No: ET3—1590_MayOS Page 1 of 9

Calibration Laboratory of Schweizerischer Kalibrierdienst Schmid & Partner Service suisse d‘étalonnage Engineering AG Servizio svizzero di taratura Zeughausstrasse 43, 8004 Zurich, Switzerland Swiss Calibration Service Accredited by the Swiss Federal Office of Metrology and Accreditation Accreditation No.: SCS 108 The Swiss Accreditation Service is one of the signatories to the EA Multilateral Agreement for the recognition of calibration certificates Glossary: TSL tissue simulating liquid NORMx,y,z sensitivity in free space ConF sensitivity in TSL / NORMx,y.z DCP diode compression point Polarization q @ rotation around probe axis Polarization 8 8 rotation around an axis that is in the plane normal to probe axis (at measurement center), i.e., 8 = 0 is normal to probe axis Calibration is Performed According to the Following Standards: a) IEEE Std 1528—2003, "IEEE Recommended Practice for Determining the Peak Spatial— Averaged Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques", December 2003 b) CENELEC EN 50361, "Basic standard for the measurement of Specific Absorption Rate related to human exposure to electromagnetic fields from mobile phones (300 MHz — 3 GHz), July 2001 Methods Applied and Interpretation of Parameters: NORMx,y,z: Assessed for E—field polarization 8 = 0 (f < 900 MHz in TEM—cell; f > 1800 MHz: R22 waveguide). NORMx,y,z are only intermediate values, i.e., the uncertainties of NORMx,y,z does not effect the E*—field uncertainty inside TSL (see below ConvF). NORM(M)x,y,z = NORMx,y,z * frequency_response (see Frequency Response Chart). This linearization is implemented in DASY4 software versions later than 4.2. The uncertainty of the frequency response is included in the stated uncertainty of ConvF. DCPx,y,z: DCP are numerical linearization parameters assessed based on the data of power sweep (no uncertainty required). DCP does not depend on frequency nor media. ConvrF and Boundary Effect Parameters: Assessed in flat phantom using E—field (or Temperature Transfer Standard for f < 800 MHz) and inside waveguide using analytical field distributions based on power measurements for f > 800 MHz. The same setups are used for assessment of the parameters applied for boundary compensation (alpha, depth) of which typical uncertainty values are given. These parameters are used in DASY4 software to improve probe accuracy close to the boundary. The sensitivity in TSL corresponds to NORMx,y,z * ConvF whereby the uncertainty corresponds to that given for ConvF. A frequency dependent ComvF is used in DASY version 4.4 and higher which allows extending the validity from + 50 MHz to + 100 MHz. Spherical isotropy (3D deviation from isotropy): in a field of low gradients realized using a flat phantom exposed by a patch antenna. Sensor Offset: The sensor offset corresponds to the offset of virtual measurement center from the probe tip (on probe axis). No tolerance required. Certificate No: ET3—1590_MayOS Page 2 of 9

ET3DV6 SN:1590 May 20, 2005 Probe ET3DVG6 SN:1590 Manufactured: March 19, 2001 Last calibrated: May 24, 2004 Recalibrated: May 20, 2005 Calibrated for DASY Systems (Note: non—compatible with DASY2 system!) Certificate No: ET3—1590_MayOS Page 3 of 9

ET3DV6 SN:1590 May 20, 2005 DASY — Parameters of Probe: ET3DV6 SN:1590 Sensitivity in Free SpaceA Diode CompressionB NormX 1.82 £101% uV/(V/m) DCP xX 87 mV NormY 1.97 £101% uV/(V/im) DCP Y 87 mV NormZ 1.70 £101% uV/(V/im) DCP z 87 mV Sensitivity in Tissue Simulating Liquid (Conversion Factors) Please see Page 8. Boundary Effect TSL 900 MHz Typical SAR gradient: 5 % per mm Sensor Center to Phantom Surface Distance 3.7 mm 4.7 mm SARp, [%) Without Correction Algorithm 7.6 3.9 SARp, [%] With Correction Algorithm 0.1 0.2 TSL 1810 MHz Typical SAR gradient: 10 % per mm Sensor Center to Phantom Surface Distance 3.7 mm 4.7 mm SARp, [%] Without Correction Algorithm 11.8 8.3 SARp, [%] With Correction Algorithm 0.6 0.1 Sensor Offset Probe Tip to Sensor Center 2.7 mm The reported uncertainty of measurement is stated as the standard uncertainty of measurement multiplied by the coverage factor k=2, which for a normal distribution corresponds to a coverage probability of approximately 95%. * The uncertainties of NormX,Y,Z do not affect the E*—field uncertainty inside TSL (see Page 8). ® Numerical linearization parameter: uncertainty not required. Certificate No: ET3—1590_MayOS Page 4 of 9

ET3DV6 SN:1590 May 20, 2005 Frequency Response of E—Field (TEM—Cell:ifi110 EXX, Waveguide: R22) Frequency response (normalized) 0 500 1000 1500 2000 2500 3000 f [MHz] —@—TEM —o—R22 | Uncertainty of Frequency Response of E—field: £ 6.3% (k=2) Certificate No: ET3—1590_MayO5 Page 5 of 9

ET3DV6 SN:1590 May 20, 2005 Receiving Pattern (¢), 8 = 0° [ _.] § f= 600 MHz, TEM ifi110EXX | f= 1800 MHz, WG R22 —0— 30 MHz —B— 100 MHz Error [dB] —@—600 MHz | —m— 1800 MHz |_| —a—2500 MHz| 1 0 60 120 180 240 300 360 Uncertainty of Axial Isotropy Assessment: £ 0.5% (k=2) Certificate No: ET3—1590_MayO5 Page 6 of 9

ET3DV6 SN:1590 May 20, 2005 Dynamic Range f(SARpeaq) (Waveguide R22, f = 1800 MHz) 1.E+7 1.E+6 1.E+5 Input Signal [mV] 1.E+4 1.E+3 1.E+2 1.E+1 1.E+0 0.0001 0.001 0.01 0.1 1 10 100 SAR [mW/cm‘] —®— not compensated —®— compensated 0.001 0.01 01 1 10 100 L SAR [mW/icm*] Uncertainty of Linearity Assessment: £ 0.6% (k=2) Certificate No: ET3—1590_MayO5 Page 7 of 9

ET3DV6 SN:1590 May 20, 2005 Conversion Factor Assessment | f= 900 MHz, WGLS R9 (head) f= 1810 MHz, WGLS R22 (head) JB e esfirennranimamtniee $0.0 1————i—P | | | | || | | 3.0 ————41—4—1— | | || 25.0 }‘ }I 3. 25 | N | | & | * tS & 200 {&@|— o *E 20 < | € $ 150 1 E | ‘ | & 1.5 + | tC | | <_# 10 {— | < 10.0 4 Jn || 0.5 5.0 0.0 + 0.0 s 0 20 40 60 z[mm] z[mm] —@— Analytical —0—Measurements | —@— Analytical —0—Measurements | f [MHz] Validity [MHz]® TSL Permittivity Conductivity Alpha Depth ___ConvF Uncertainty 900 £ 50 / £ 100 Head 41.5%5% 0.97+5% 0.54 1.81 6.67 £11.0% (k=2) 1810 £50/£100 Head 40.0%£5% 140 %5% 0.46 2.62 5.44 +11.0% (k=2) 2450 £50/+100 Head 39.2%+5% 1.80£5% 0.50 2.53 4.56 £11.8% (k=2) 900 + 50 / £ 100 Body 55.0%5% 1.05 +5% 0.46 2.09 6.47 £11.0% (k=2) 1810 £50/+ 100 Body 53.3+5% 1.52+5% 0.44 3.00 4.85 £11.0% (k=2) 2450 £50/%100 Body 52.7+5% 1.95+5% 0.50 242 4.22 £11.8% (k=2) © The validity of £ 100 MHz only applies for DASY v4.4 and higher (see Page 2). The uncertainty is the RSS of the ConvF uncertainty at calibration frequency and the uncertainty for the indicated frequency band. Certificate No: ET3—1590_MayO5 Page 8 of 9

ET3DV6 SN:1590 May 20, 2005 Deviation from Isotropy in HSL Error (¢, 3), f = 900 MHz Error [dB] [I-LOO—-O‘BO :07.80—0.60 ©—0.60——0.40 I-O.AD-D.Zd ©—0.20—0.00 | |©0.00—0.20 ©M0.20—0.40 M0.40—0.60 M0.60—0.80 ©0.80—1.00 Uncertainty of Spherical Isotropy Assessment: £ 2.6% (k=2) Certificate No: ET3—1590_MayO5 Page 9 of 9

Schmid & Partner Engineering AG s e a Zeughausstrasse 43, 8004 Zurich, Switzerland Phone +41 1 245 9700, Fax +41 1 245 9779 info@speag.com, http://www.speag.com Additional Conversion Factors for Dosimetric E—Field Probe Type: ET3DV6 Serial Number: 1590 Place of Assessment: Zurich Date of Assessment: May 23, 2005 Probe Calibration Date: May 20, 2005 Schmid & Partner Engineering AG hereby certifies that conversion factor(s) of this probe have been evaluated on the date indicated above. The assessment was performed using the FDTD numerical code SEMCAD of Schmid & Partner Engineering AG. Since the evaluation is coupled with measured conversion factors, it has to be recalculated yearly, i.e., following the re—calibration schedule of the probe. The uncertainty of the numerical assessment is based on the extrapolation from measured value at 900 MHz or at 1800 MHz. /2 Z , Assessed by: = &A E ET3DV6—SN:1590 Page 1 of 2 May 23, 2005

Schmid & Partner Engineering AG s e a Zeughausstrasse 43, 8004 Zurich, Switzerland Phone +41 1 245 9700, Fax +41 1 245 9779 info@speag.com, http://www.speag.com Dosimetric E—Field Probe ET3DV6 SN:1590 Conversion factor (+ standard deviation) f = 150 MHz ConvF 9.1 + 10% s;= 52.3 4 5% 0 = 0.76+5% mho/m (head tissue) f = 300 MHz ConvF 8.1 £9% €r= 45.3 *# 5% 0o =0.87 + 5% mho/m (head tissue) f = 450 MHz ConvF 7.8 +8% €r= 43.5 *# 5% 0 = 0.87 + 5% mho/m (head tissue) f= 150 MHz ConvF 8.6 + 10% E; = 61.9 +# 5% 0 = 0.80 + 5% mho/m (body tissue) f= 450 MHz ConvF 7.17 #£8% €r= 56.7 £5% 0 = 0.94 + 5% mho/m (body tissue) Important Note: For numerically assessed probe conversion factors, parameters Alpha and Delta in the DASY software must have the following entries: Alpha = 0 and Delta=1. Please see also Section 4.7 of the DASY4 Manual. ET3DV6—SN:1590 Page 2 of 2 May 23, 2005


Document Created: 2005-12-18 14:08:52
Document Modified: 2005-12-18 14:08:52
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