Test Report UL Far Field Eirp Measurement

FCC ID: PD917265NG

Test Report

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FCCID_2741597

FAR FIELD EIRP MEASUREMENT TEST REPORT TO SUPPORT POWER DENSITY REPORT FOR MODEL: DELL P58G FCC ID: PD917265NG REPORT NUMBER: 15U19818-E2, Revision C ISSUE DATE: August 5, 2015 Prepared for INTEL MOBILE COMMUNICATIONS 100 CENTER POINT CIRCLE, SUITE 200 COLUMBIA, SC 29210 USA Prepared by UL VERIFICATION SERVICES INC. 47173 BENICIA STREET FREMONT, CA 94538, U.S.A. TEL: (510) 771-1000 FAX: (510) 661-0888

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG Revision History Issue Rev. Date Revisions Revised By -- 04/05/2015 Initial Issue M. Heckrotte A 04/06/2015 Revised title and model number M. Heckrotte Added conducted output power, revised MU, B 07/28/2015 M. Heckrotte revised FCC ID C 08/05/2015 Added Clarification to Section 2 and 7.1 C. Cheung Page 2 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS ................................................................................. 5 2. PURPOSE AND SCOPE .................................................................................................... 6 3. TEST METHODOLOGY ..................................................................................................... 6 4. FACILITIES AND ACCREDITATION ................................................................................. 6 5. CALIBRATION ................................................................................................................... 6 6. MEASUREMENT UNCERTAINTY...................................................................................... 7 6.1. EUT MEASUREMENT ................................................................................................. 7 6.2. APERTURE PROBE GAIN MEASUREMENT .............................................................. 8 7. EQUIPMENT UNDER TEST ............................................................................................... 9 7.1. DESCRIPTION OF EUT .............................................................................................. 9 7.2. DESCRIPTION OF ANTENNA..................................................................................... 9 7.3. SOFTWARE AND FIRMWARE .................................................................................... 9 7.4. DESCRIPTION OF TEST SETUP ................................................................................ 9 8. TEST AND MEASUREMENT EQUIPMENT ......................................................................11 9. MEASUREMENT PROCEDURES .....................................................................................11 9.1. EQUATIONS...............................................................................................................11 9.2. SETUP AND PROCEDURE ........................................................................................13 10. RESULTS ......................................................................................................................14 10.1. DUTY CYCLE .........................................................................................................14 10.1.1. CALCULATIONS ..............................................................................................14 10.1.2. EUT MEASUREMENTS ...................................................................................14 10.1.3. POWER SENSOR CONSIDERATIONS ...........................................................18 10.1.4. POWER SENSOR PULSE RESPONSE ..........................................................18 10.2. POWER DENSITY PLOTS ......................................................................................19 10.3. EIRP PLOTS ...........................................................................................................19 10.4. TABULAR RESULTS FOR CHANNEL 1 .................................................................20 10.5. TABULAR RESULTS FOR CHANNEL 2 .................................................................21 10.6. TABULAR RESULTS FOR CHANNEL 3 .................................................................22 11. APERTURE PROBE ANTENNA ....................................................................................23 11.1. DESCRIPTION OF ANTENNA ................................................................................23 11.2. DERIVATION OF CALIBRATION EQUATIONS ......................................................24 11.3. CALIBRATION PROCEDURE .................................................................................26 Page 3 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 11.4. CALIBRATION RESULTS .......................................................................................26 11.4.1. FAR-FIELD DISTANCE ....................................................................................26 11.4.2. STANDALONE PROBE....................................................................................27 11.4.3. PROBE/ISOLATOR/LNA ASSEMBLY ..............................................................28 11.5. VALIDATION OF EQUATIONS AND DESIGN CHANGE ........................................29 11.5.1. VALIDATION OF EQUATIONS ........................................................................29 11.5.2. VALIDATION OF DESIGN CHANGE ...............................................................29 12. SETUP PHOTO..............................................................................................................30 Page 4 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 1. ATTESTATION OF TEST RESULTS COMPANY NAME: INTEL MOBILE COMMUNICATIONS 100 CENTER POINT CIRCLE, SUITE 200 COLUMBIA, SC 29210 USA EUT DESCRIPTION: Intel Wireless Gigabit radio installed in Dell laptop MODEL: Dell P58G SERIAL NUMBER: ZAU7002850 DATE OF TESTS: FEBRUARY 17, 23 and March 31, 2015 APPLICABLE PROCEDURES FCC IEEE FCC § 2.1093 IEEE Std C95.3-2002 UL Verification Services Inc. tested the above equipment in accordance with the requirements set forth in the above standards. All indications of Pass/Fail in this report are opinions expressed by UL Verification Services Inc. based on interpretations and/or observations of test results. Measurement Uncertainties were not taken into account and are published for informational purposes only. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. Note: The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein. This document may not be altered or revised in any way unless done so by UL Verification Services Inc. and all revisions are duly noted in the revisions section. Any alteration of this document not carried out by UL Verification Services Inc. will constitute fraud and shall nullify the document. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, any agency of the Federal Government, or any agency of any government. Approved & Released For UL Verification Services Inc. By: Tested By: MICHAEL HECKROTTE STEVE AGUILAR PRINCIPAL ENGINEER WiSE ENGINEER UL Verification Services Inc. UL Verification Services Inc. Page 5 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 2. PURPOSE AND SCOPE This report documents the results of radiated measurements of the power density and EIRP of a radio operating in the 60 GHz unlicensed band. The purpose is to enable a comparison with power density simulations in far field and assist in the determination of the far field boundary. Due to the lack of standardized code validation, benchmarking and uncertainty of the simulation software, the far field results are provided for the purpose of providing confidence for the software simulation model used and that the results produced were within an acceptable range when compared with the measured results. 3. TEST METHODOLOGY The tests documented in this report were performed in accordance with IEEE Std C95.3-2002, “IEEE Recommended Practice for Measurements and Computations of Radio Frequency Electromagnetic Fields With Respect to Human Exposure to Such Fields, 100 kHz–300 GHz” and the measurement distance limitations specified in FCC Rules § 2.1093(d). 4. FACILITIES AND ACCREDITATION The test sites and measurement facilities used to collect data are located at 47173 and 47266 Benicia Street, Fremont, California, USA. Line conducted emissions are measured only at the 47173 address. The following table identifies which facilities were utilized for radiated emission measurements documented in this report. Specific facilities are also identified in the test results sections. 47173 Benicia Street 47266 Benicia Street Chamber A Chamber D Chamber B Chamber E Chamber C Chamber F Chamber G Chamber H UL Verification Services Inc. is accredited by NVLAP, Laboratory Code 200065-0. The full scope of accreditation can be viewed at http://ts.nist.gov/standards/scopes/2000650.htm. 5. CALIBRATION The measuring equipment utilized to perform the tests documented in this report has been calibrated in accordance with the manufacturer's recommendations, and is traceable to recognized national standards. Page 6 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 6. MEASUREMENT UNCERTAINTY The following measurement uncertainty levels have been estimated for tests performed on the apparatus: PARAMETER UNCERTAINTY Power Density +/- 19.36 % +0.77 / - 0.93 dB Uncertainty figures are valid to a confidence level of 95%. 6.1. EUT MEASUREMENT Page 7 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 6.2. APERTURE PROBE GAIN MEASUREMENT Page 8 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 7. EQUIPMENT UNDER TEST 7.1. DESCRIPTION OF EUT The EUT is an Intel Wireless Gigabit radio model 17265NGW LC, FCC ID PD917265NG installed in an Dell P58G convertible 2 in 1 laptop. Please note, Dell model P58G is the regulatory model number. This identical host is also marketed under the name Dell Latitude 7350. In the report we refer only to P58G model. 7.2. DESCRIPTION OF ANTENNA The antenna is an integral phased array antenna with a maximum gain of 15.45 dBi. 7.3. SOFTWARE AND FIRMWARE . Intel Wireless Gigabit 17265 Driver Version: 1.1.3028 Test Tool: DRTU, version 1.7.6-1123 The EUT is set to transmit on MCS1 with 50% duty cycle. 7.4. DESCRIPTION OF TEST SETUP SUPPORT EQUIPMENT Description Manufacturer Model Serial Number DA45NM131 CN-04H6NV-48661-46R- AC / DC Adapter DELL 11M1-A01 I/O CABLES Cable No. Port Cable Length (m) Remarks 1 AC Power 0.8 AC Mains 2 DC power 1.9 EUT Power Page 9 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG SETUP DIAGRAM FOR TESTS EUT 2 AC ADAPTER 1 MAINS POWER SOURCE Page 10 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 8. TEST AND MEASUREMENT EQUIPMENT The following test and measurement equipment was utilized for the tests documented in this report: Description Manufacturer Model Asset Cal Date Cal Due Power Sensor HP V8486A-H01 T234 12/16/2014 12/16/2015 Power Sensor Agilent V8486A-H02 T433 5/6/2014 5/6/2015 Power Meter Agilent N1913A T412 5/1/2014 5/1/2015 Spectrum Analyzer Agilent N9030A T313 9/13/2014 9/13/2015 Signal Generator Agilent E8257D T181 9/26/2014 9/26/2015 Downconverter Agilent MT463 T499 8/6/2014 8/6/2015 Harmonic Mixer 50- M1970V T994 6/18/2014 6/18/2015 Agilent 80GHz Aperture Probe Antenna UL 60 GHz Probe Copper 12/16/2014 12/16/2015 9. MEASUREMENT PROCEDURES 9.1. EQUATIONS DUTY CYCLE The duty cycle of the EUT modulation is measured, and used to provide the duty cycle correction factor. Duty Cycle Correction Factor = 10*Log(Duty Cycle) Where: Duty Cycle Correction Factor is (dB) Duty Cycle is (Linear) Page 11 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG POWER DENSITY The radiated emission level is measured with the aperture probe antenna connected to a power sensor. The measured power is converted to Pt*Gt using the far-field Friis equation: Pt*Gt = 32.44 + 20*Log(Distance/100) + Measured Power - Aperture Probe Gain + 20*Log(Frequency) Where: Pt*Gt is (dBm) Distance is (cm) Measured Power is (dBm) Aperture Probe Gain is (dBi) Frequency is (GHz) Pt*Gt is converted to power density using Power Density = (Pt*Gt) / [4 * π * (Distance)2] Where: Power Density is (mW/cm2) Pt*Gt is (mW) Distance is (cm) Pt*Gt is also converted to EIRP during the ON time of the burst using EIRP = (Pt*Gt) + Duty Cycle Correction Factor Where: EIRP is (dBm) Pt*Gt is (dBm) Duty Cycle Correction Factor is (dB) Page 12 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 9.2. SETUP AND PROCEDURE Optical-grade linear and rotation stages enable fine adjustments of X / Y / Z / Polarization, and are used to maintain a consistent and accurate placement of probe. Absorber material is placed around the support structures and alignment fixture to reduce reflections, scattering and perturbations. The Aperture Probe is aligned with the boresight of the EUT antenna at a distance of 0.5 cm. The probe is scanned over X / Y / Polarization to maximize the emissions level. The power is measured and recorded, then Pt*Gt, Power density and EIRP are calculated as described above. The measurement distance is varied from 10 to 20 cm in 1-cm steps and the power and results of subsequent calculations are recorded for each distance. The measurement distance is the distance from the surface of the enclosure of the laptop display to the probe antenna aperture. The antenna separation distance is the measurement distance plus the internal spacing between the antenna and the outside surface of the enclosure. Calculations of Pt*Gt, power density and EIRP are based on the antenna separation distance. Page 13 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 10. RESULTS 10.1. DUTY CYCLE 10.1.1. CALCULATIONS Duty cycle is calculated as either [(ON Time)/Period] or {1-[(OFF Time)/Period]}. The Duty cycle within the Burst is multiplied by the Duty cycle over the Burst Period to derive the Duty Cycle. The Duty Cycle Correction Factor is calculated as 10 * Log (Duty Cycle). 10.1.2. EUT MEASUREMENTS CH 1 ON Time Period Duty Cycle Duty Cycle Correction Description (ms) (ms) (Linear) (dB) Duty Cycle within Burst 1.994 2.037 0.979 Duty cycle over Burst 498.8 1000 0.499 Period Duty Cycle 0.488 3.11 CH 2 ON Time Period Duty Cycle Duty Cycle Correction Description (ms) (ms) (Linear) (dB) Duty Cycle within Burst 1.996 2.038 0.979 Duty cycle over Burst 498.8 1001 0.498 Period Duty Cycle 0.488 3.12 CH 3 ON Time Period Duty Cycle Duty Cycle Correction Description (ms) (ms) (Linear) (dB) Duty Cycle within Burst 1.995 2.036 0.980 Duty cycle over Burst 498.8 1001 0.498 Period Duty Cycle 0.488 3.11 Page 14 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG DUTY CYCLE PLOTS DUTY CYCLE WITHIN BURST CH1 DUTY CYCLE OVER BURST PERIOD CH1 Page 15 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG DUTY CYCLE WITHIN BURST CH2 DUTY CYCLE OVER BURST PERIOD CH2 Page 16 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG DUTY CYCLE WITHIN BURST CH3 DUTY CYCLE OVER BURST PERIOD CH3 Page 17 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 10.1.3. POWER SENSOR CONSIDERATIONS The averaging settings of the power meter / power sensor combination must be adjusted to respond properly to the modulation bursts and burst period. The power sensor is connected to a microwave signal generator with a mm-wave source module extension. The output frequency of the generator is set to 60.48 GHz, corresponding to EUT channel 2. The generator is adjusted for pulse modulation using the nominal timing values for the Duty cycle across the Burst Period (500 msec ON, 1000 msec Period). The power meter averaging number is then adjusted to provide a stable measurement (after the published settling time has elapsed). Pulse modulation is then turned off, the delta between Modulation OFF and ON is calculated, and compared to the expected value of 10 * Log (Nominal duty cycle across Burst period) = 3.00 dB. Description ON Time Period Duty Cycle Duty Cycle Correction (ms) (ms) (Linear) (dB) Nominal Duty 500 1000 0.50 3.00 Cycle across Burst Period 10.1.4. POWER SENSOR PULSE RESPONSE An averaging number of 500 provided measurements stable to within approximately 0.1 dB for the EUT’s nominal pulse characteristics documented above. The V8486A-H01 power sensor showed a measured difference of 2.95 to 3.03 dB, between CW and modulated. Page 18 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 10.2. POWER DENSITY PLOTS 10.3. EIRP PLOTS Page 19 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 10.4. TABULAR RESULTS FOR CHANNEL 1 Frequency (GHz) 58.32 Probe Gain (dBi) 26.0 Antenna Offset inside platform (cm) 0.15 EUT Antenna Gain (dBi) 15.45 Duty Cycle Correction (dB) 3.11 Measurement Distance Meas (Pt*Gt) (Pt*Gt) Measured EIRP Conducted Distance From Avg Power Output Antenna Power Density Power (cm) (cm) (dBm) (dBm) (mw) (mW/cm^2) (dBm) (dBm) 10.0 10.150 -4.53 17.4 54.4 0.042 20.5 5.0 11.0 11.150 -5.24 17.5 55.7 0.036 20.6 5.1 12.0 12.150 -5.92 17.5 56.6 0.031 20.6 5.2 13.0 13.150 -6.58 17.6 56.9 0.026 20.7 5.2 14.0 14.150 -7.23 17.5 56.7 0.023 20.6 5.2 15.0 15.150 -7.81 17.6 56.9 0.020 20.7 5.2 16.0 16.150 -8.34 17.6 57.2 0.017 20.7 5.2 17.0 17.150 -8.84 17.6 57.5 0.016 20.7 5.3 18.0 18.150 -9.34 17.6 57.4 0.014 20.7 5.3 19.0 19.150 -9.84 17.6 57.0 0.012 20.7 5.2 20.0 20.150 -10.57 17.3 53.3 0.010 20.4 4.9 Page 20 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 10.5. TABULAR RESULTS FOR CHANNEL 2 Frequency (GHz) 60.48 Probe Gain (dBi) 25.8 Antenna Offset inside platform (cm) 0.15 EUT Antenna Gain (dBi) 15.45 Duty Cycle Correction (dB) 3.12 Measurement Distance Meas (Pt*Gt) (Pt*Gt) Measured EIRP Conducted Distance From Avg Power Output Antenna Power Density Power (cm) (cm) (dBm) (dBm) (mw) (mW/cm^2) (dBm) (dBm) 10.0 10.150 -4.43 18.0 62.6 0.048 21.1 5.6 11.0 11.150 -5.12 18.1 64.5 0.041 21.2 5.8 12.0 12.150 -5.87 18.1 64.4 0.035 21.2 5.8 13.0 13.150 -6.42 18.2 66.5 0.031 21.3 5.9 14.0 14.150 -7.03 18.3 66.9 0.027 21.4 5.9 15.0 15.150 -7.63 18.2 66.8 0.023 21.4 5.9 16.0 16.150 -8.13 18.3 67.7 0.021 21.4 6.0 17.0 17.150 -8.71 18.2 66.8 0.018 21.4 5.9 18.0 18.150 -9.15 18.3 67.6 0.016 21.4 6.0 19.0 19.150 -9.61 18.3 67.7 0.015 21.4 6.0 20.0 20.150 -9.93 18.4 69.6 0.014 21.5 6.1 Page 21 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 10.6. TABULAR RESULTS FOR CHANNEL 3 Frequency (GHz) 62.64 Probe Gain (dBi) 25.0 Antenna Offset inside platform (cm) 0.15 EUT Antenna Gain (dBi) 15.45 Duty Cycle Correction (dB) 3.11 Measurement Distance Meas (Pt*Gt) (Pt*Gt) Measured EIRP Conducted Distance From Avg Power Output Antenna Power Density Power (cm) (cm) (dBm) (dBm) (mw) (mW/cm^2) (dBm) (dBm) 10.0 10.150 -6.46 17.0 50.6 0.039 20.2 4.7 11.0 11.150 -7.18 17.1 51.8 0.033 20.3 4.8 12.0 12.150 -7.72 17.3 54.3 0.029 20.5 5.0 13.0 13.150 -8.33 17.4 55.2 0.025 20.5 5.1 14.0 14.150 -8.93 17.5 55.7 0.022 20.6 5.1 15.0 15.150 -9.46 17.5 56.5 0.020 20.6 5.2 16.0 16.150 -10.02 17.5 56.5 0.017 20.6 5.2 17.0 17.150 -10.55 17.5 56.4 0.015 20.6 5.2 18.0 18.150 -10.93 17.6 57.8 0.014 20.7 5.3 19.0 19.150 -11.41 17.6 57.6 0.013 20.7 5.3 20.0 20.150 -11.78 17.7 58.6 0.011 20.8 5.3 Page 22 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 11. APERTURE PROBE ANTENNA 11.1. DESCRIPTION OF ANTENNA The measuring antenna is an open-ended waveguide as specified in IEEE Std C95.3-2002 Clause 5.5.1.1.3 Small apertures. The aperture probe antenna consists of a 20 cm straight section of WR15 rectangular waveguide with a standard UG-385/U flange at one end. Several improvements to the basic design have been made. The aperture end is tapered to reduce diffraction and scattering. An isolator is connected to the output of the probe to reduce reflections and improve matching. A low noise amplifier (LNA) is connected to the output of the isolator to increase the system sensitivity. A 16 cm long absorber sleeve is wrapped around the probe to minimize reflections, scattering and coupling. The placement of the absorber sleeve along the probe is optimized by varying the sleeve position upon setting up for the probe calibration. No difference in received power is observed as the sleeve is moved along the probe, as long as the end of the sleeve does not extend past the end of the probe. After the sleeve is extended beyond the probe tip, the power begins to drop. A repeatable sleeve position is established by aligning the end of the sleeve with the corner of the taper and the full-thickness portion of the rectangular waveguide. Page 23 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 11.2. DERIVATION OF CALIBRATION EQUATIONS The far-field gain of the Aperture Probe is measured in accordance with IEEE Std C95.3-2002, “IEEE Recommended Practice for Measurements and Computations of Radio Frequency Electromagnetic Fields With Respect to Human Exposure to Such Fields, 100 kHz–300 GHz.” IEEE Std C95.3, Clause 5.5.1.1.2 Antenna gain determination, states that the power transmitted between a pair of antennas is measured in the far field then apply C95.3 Equation (2), excerpted as follows: GT * GR = (PR / PT) * (4* π * d / )2 Converting to the log form yields: GT + GR = PR - PT + 20*Log (4 * π * d / ) GT + GR = PR - PT + 21.98 + 20*Log (d) - 20*Log () Denoting distance by D rather than d, and converting from wavelength in meters to frequency in GHz yields: GT + GR = PR - PT + 21.98 + 20*Log (D) - 20*Log (0.3 / f) GT + GR = PR - PT + 32.44 + 20*Log (D) + 20*Log (f) Equation (1) Where GT is the gain of the transmit antenna (dBi) GR is the gain of the receive antenna (dBi) PR is the power received (dBm) PT is the power transmitted (dBm) D is the distance between the antennas (m) f is the frequency (GHz) Page 24 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG Although a single path loss measurement of (PR - PT) is insufficient to solve for two unknowns GT and GR, the individual far-field gain of each of three different antennas is determined from three path loss measurements made under identical far-field conditions using the three different antennas taken in pairs. Three path loss measurements (PR12 - PT), (PR13 - PT) and (PR23 - PT) are sufficient to simultaneously solve for three unknowns G1, G2 and G3. Equation (1) is applied to each of the three path loss measurements as follows: (G1 + G2) = (PR12 - PT) + 32.44 + 20*Log (D) + 20*Log (f) Equation (2) (G1 + G3) = (PR13 - PT) + 32.44 + 20*Log (D) + 20*Log (f) Equation (3) (G2 + G3) = (PR23 - PT) + 32.44 + 20*Log (D) + 20*Log (f) Equation (4) Where (G1 + G2) is the sum of the gains of Antennas 1 and 2 (G1 + G3) is the sum of the gains of Antennas 1 and 3 (G2 + G3) is the sum of the gains of Antennas 2 and 3 PR12 is the power received when measuring Antennas 1 and 2 (dBm) PR13 is the power received when measuring Antennas 1 and 3 (dBm) PR23 is the power received when measuring Antennas 2 and 3 (dBm) PT is the power transmitted (dBm) D is the distance between the antennas (m) f is the frequency (GHz) The gain of each individual antenna is calculated as follows: G1 = [(G1 + G2) + (G1 + G3) - (G2 + G3)] / 2 Equation (5) G2 = [(G1 + G2) + (G2 + G3) - (G1 + G3)] / 2 Equation (6) G3 = [(G1 + G3) + (G2 + G3) - (G1 + G2)] / 2 Equation (7) Where: G1 is the gain of Antenna 1 (dBi) G2 is the gain of Antenna 2 (dBi) G3 is the gain of Antenna 3 (dBi) (G1 + G2) is the result of applying Equation (2) (G1 + G3) is the result of applying Equation (3) (G2 + G3) is the result of applying Equation (4) Page 25 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 11.3. CALIBRATION PROCEDURE 1. Allow the signal source, power sensor and power meter to warm up as specified by the manufacturer of the instruments. 2. Adjust the instruments to the applicable frequency. Connect the power sensor to the output of the source. Measure and record Power Transmitted. 3. Connect the first pair of antennas to their respective source (Tx antenna) and power sensor (Rx antenna). Place the antennas at the selected far-field separation distance in a bore-sight configuration using a laser level to align the antennas. Measure and record Power Received. 4. Repeat step 3 for each pair of antennas. 5. Calculate the antenna gains by applying Equations (2) through (7). 11.4. CALIBRATION RESULTS 11.4.1. FAR-FIELD DISTANCE IEEE Std C95.3 Clause 5.5.1.1.2 Figure 5 gives the estimated gain reduction (relative to the far- field gain G) of an antenna as a function of normalized distance. The normalized distance is given in terms of n = d/a2 where d is distance,  is wavelength and a is the largest aperture dimension. IEEE Std C95.3 further states that the far-field gain holds for distances greater than about (8a2)/ (n > 8). For WR15 waveguide, a = 0.0038 m For Channel 1 (58.32 GHz),  = 0.0051 m, thus a2/ = 0.0028 m For Channel 2 (60.48 GHz),  = 0.0050 m, thus a2/ = 0.0029 m For Channel 3 (62.64 GHz),  = 0.0048 m, thus a2/ = 0.0030 m The probe is calibrated in the far field at a 0.1 m distance, corresponding to normalized distances as follows: (35.6a2)/ (n > 35) for 58.32 GHz (34.5a2)/ (n > 34) for 60.48 GHz (33.3a2)/ (n > 33) for 62.64 GHz The selected calibration distance of 0.1 m is greater than the minimum distance indicated by IEEE Std C95.3. Page 26 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 11.4.2. STANDALONE PROBE Page 27 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 11.4.3. PROBE/ISOLATOR/LNA ASSEMBLY The aperture probe antenna is configured as a receive-only antenna assembly consisting of the WR15 Aperture Probe, Isolator, LNA and Absorber Sleeve. Page 28 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 11.5. VALIDATION OF EQUATIONS AND DESIGN CHANGE 11.5.1. VALIDATION OF EQUATIONS The measured gain of the original probe antenna is compared to the realized gain from a theoretical model of an open ended V-band rectangular waveguide provided by Zhong Chen of ETS-Lindgren. Frequency Measured Gain Theoretical Model Gain Delta to Model Standalone Probe Standalone Probe (GHz) (dBi) (dBi) (dB) 58.32 6.3 6.1 0.2 60.48 6.8 6.3 0.5 62.64 5.4 6.5 -1.1 Average Delta to Model (dB) -0.1 11.5.2. VALIDATION OF DESIGN CHANGE The effectiveness of the isolator is validated by comparing the gain measured with and without the isolator. Since the received power increases when reflections are reduced and matching is improved, an increase in the measured antenna gain indicates that the isolator is effective. Frequency Effective Gain of Probe Measured Gain of Gain Increase (Less Isolator & LNA) Standalone Probe (GHz) (dBi) (dB) (dB) 58.32 8.3 6.3 2.0 60.48 8.1 6.8 1.3 62.64 7.5 5.4 2.1 Average Gain Increase (dB) 1.8 Page 29 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.

REPORT NO: 15U19818-E2C DATE: AUGUST 05, 2015 EUT: Intel Wireless Gigabit radio installed in Dell 2 in 1 laptop FCC ID: PD917265NG 12. SETUP PHOTO END OF REPORT Page 30 of 30 UL VERIFICATION SERVICES INC. FORM NO: CCSUP4701I 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of UL Verification Services Inc.


Document Created: 2015-08-05 11:14:50
Document Modified: 2015-08-05 11:14:50
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