08u11615-2a etsi 300 328 v1.7.1 wlan reportfaenl.msi.com/ftp/ce documents/desktop systems/wlan...

ETSI EN 300 328 v1.7.1

TEST REPORT

FOR

802.11n 1X2 PCIe MINICARD TRANSCEIVER

MODEL NUMBER: AR5B91

REPORT NUMBER: 08U11615-2, REVISION A

ISSUE DATE: MARCH 3, 2008

Prepared for ATHEROS COMMUNICATIONS, INC. 5480 GREAT AMERICA PARKWAY SANTA CLARA, CA 95054, U.S.A.

Prepared by

COMPLIANCE CERTIFICATION SERVICES 47173 BENICIA STREET

FREMONT, CA 94538, U.S.A. TEL: (510) 771-1000 FAX: (510) 661-0888

REPORT NO: 08U11615-2A DATE: MARCH 3, 2008 EUT: 802.11n 1X2 PCIe MINICARD TRANSCEIVER MODEL: AR5B91

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COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 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 CCS.

Revision History Rev.

Issue Date

Revisions

Revised By

-- 02/26/08 Initial Issue T. Chan

A 03/03/08 Revised section 5.6 T. Hong


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TABLE OF CONTENTS

1. ATTESTATION OF TEST RESULTS ....................................................................................4 2. TEST METHODOLOGY ........................................................................................................5 3. FACILITIES AND ACCREDITATION.....................................................................................5 4. CALIBRATION AND UNCERTAINTY....................................................................................5

4.1. MEASURING INSTRUMENT CALIBRATION ................................................................5 4.2. MEASUREMENT UNCERTAINTY .................................................................................5

5. EQUIPMENT UNDER TEST .................................................................................................6 5.1. DESCRIPTION OF EUT.................................................................................................6 5.2. MAXIMUM OUTPUT POWER........................................................................................6 5.3. DESCRIPTION OF AVAILABLE ANTENNAS ................................................................6 5.4. SOFTWARE AND FIRMWARE ......................................................................................6 5.5. WORST-CASE CONFIGURATIONS..............................................................................6 5.6. OUTPUT POWER WITH REDUCED GAIN ANTENNAS...............................................8 5.7. DESCRIPTION OF TEST SETUP................................................................................10

6. TEST AND MEASUREMENT EQUIPMENT........................................................................12 7. TEST RESULTS ..................................................................................................................13

7.1. NORMAL AND EXTREME CONDITIONS....................................................................13 7.2. DUTY CYCLE...............................................................................................................13 7.3. EFFECTIVE RADIATED POWER ................................................................................14

7.3.1. 802.11b MODE......................................................................................................15 7.3.2. 802.11n HT20 MODE............................................................................................16 7.3.3. 802.11n HT40 MODE............................................................................................17

7.4. SPECTRAL POWER DENSITY ...................................................................................18 7.4.1. 802.11b MODE......................................................................................................19 7.4.2. 802.11n HT20 MODE............................................................................................23 7.4.3. 802.11n HT40 MODE............................................................................................27

7.5. FREQUENCY RANGE .................................................................................................31 7.5.1. 802.11b MODE......................................................................................................32 7.5.2. 802.11n HT20 MODE............................................................................................43 7.5.3. 802.11n HT40 MODE............................................................................................54

7.6. TRANSMITTER SPURIOUS EMISSIONS ...................................................................65 7.6.1. 802.11b MODE......................................................................................................66 7.6.2. 802.11n HT20 MODE............................................................................................72 7.6.3. 802.11n HT40 MODE............................................................................................78

7.7. RECEIVER SPURIOUS EMISSIONS ..........................................................................84 8. RESULTS WITH REDUCED GAIN ANTENNAS.................................................................89

8.1. EFFECTIVE RADIATED POWER ................................................................................89 8.1.1. 802.11b MODE......................................................................................................90 8.1.2. 802.11n HT20 MODE............................................................................................91 8.1.3. 802.11n HT40 MODE............................................................................................92

8.2. FREQUENCY RANGE .................................................................................................93 8.2.1. 802.11b MODE......................................................................................................94 8.2.2. 802.11n HT20 MODE............................................................................................97 8.2.3. 802.11n HT40 MODE..........................................................................................100

9. SETUP PHOTOS...............................................................................................................103


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1. ATTESTATION OF TEST RESULTS COMPANY NAME: ATHEROS COMMUNICATION, INC

5480 GREAT AMERICA PARKWAY SANTA CLARA, CA 95054 USA EUT DESCRIPTION: 802.11n 1X2 PCIe MINICARD TRANSCEIVER MODEL: AR5B91 SERIAL NUMBER: 150-S0423 (Half Length Board) & 150-S0412 (Full Length Board) DATE TESTED: FEBRUARY 15-20, 2008

APPLICABLE STANDARDS

STANDARD TEST RESULTS

ETSI EN 300 328 v1.7.1 No Non-Compliance Noted

Compliance Certification Services calculated the MPE of the above equipment in accordance with the requirements set forth in the above standards. The results show that the equipment is capable of demonstrating compliance with the requirements as documented in this report. Note: The calculations documented in this report are based on the information contained in the reference documents specified below. This document may not be altered or revised in any way unless done so by Compliance Certification Services and all revisions are duly noted in the revisions section. Any alteration of this document not carried out by Compliance Certification Services will constitute fraud and shall nullify the document. No part of this report may be used to claim product certification, approval, or endorsement by NVLAP, NIST, or any government agency. Approved By: Tested By:

THU CHAN DEVIN CHANG EMC SUPERVISOR EMC ENGINEER COMPLIANCE CERTIFICATION SERVICES COMPLIANCE CERTIFICATION SERVICES


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2. TEST METHODOLOGY All tests were performed in accordance with the procedures documented in ETSI EN 300 328 v1.7.1.

3. FACILITIES AND ACCREDITATION The test sites and measurement facilities used to collect data are located at 47173 Benicia Street, Fremont, California, USA. CCS is accredited by NVLAP, Laboratory Code 200065-0. The full scope of accreditation can be viewed at http://www.ccsemc.com.

4. CALIBRATION AND UNCERTAINTY

4.1. MEASURING INSTRUMENT 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.

4.2. MEASUREMENT UNCERTAINTY Where relevant, the following measurement uncertainty levels have been estimated for tests performed on the apparatus:

PARAMETER UNCERTAINTY

Radio frequency 2.0 x 10^(-7) Total RF power, conducted 0.71 dB RF power density, conducted 2.9 dB Spurious emissions, conducted 2.8 dB All emissions, radiated 5.5 dB Temperature 0.8 deg C Humidity 4 % RH DC and low frequency voltages 2 %

Uncertainty figures are valid to confidence level of 95% and follow ETR 028.


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5. EQUIPMENT UNDER TEST

5.1. DESCRIPTION OF EUT The EUT is an 802.11n 1x2 PCIe Minicard transceiver, model AR5B91, with both full length and half length boards. The radio module is manufactured by Atheros Communications, Inc.

5.2. MAXIMUM OUTPUT POWER The highest conducted output power under normal environmental conditions in each mode is as follows:

5.3. DESCRIPTION OF AVAILABLE ANTENNAS The radio utilizes a PIFA antenna, with a maximum gain of 3.62 dBi.

5.4. SOFTWARE AND FIRMWARE The test utility and driver software used during testing was Art ANWI 1.4 and Devlib Revision 0.6 Build #18 Art_11n.

5.5. WORST-CASE CONFIGURATIONS Both half length and full length boards were evaluated on conducted and radiated emissions tests to find the worst case . The worst-case data rate for each mode is determined as follows, it is based on preliminary tests on the chipset which is utilized on this radio device. All final tests in the 802.11b mode were made at 1Mbps. All final tests in the 802.11n HT20 mode were made at MCS1. All final tests in the 802.11n HT40 mode were made at MCS0.

Frequency Band Mode Output Power Output Power(MHz) (dBm) (mW)

2412 - 2472 802.11b 15.79 37.92412 - 2472 802.11g2412 - 2472 802.11n HT20 15.89 38.82422 - 2462 802.11n HT40 15.81 38.1

Same as 802.11n HT20 data


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It was determined that 802.11g mode data can be compliant as the 802.11n MIMO HT20 data. For RF conducted emissions, all tests were performed on half length board (the worst-case) with the highest average output power setting at 20dBm. For RF radiated emissions, cabinet radiation test were performed on both half and full length boards with the highest average output power setting at 20dBm. For the higher output power by reduced antenna gain to 0dBi, only two tests (EIRP and Frequency Range test) were needed, due to EIRP and Frequency range tests have tighter margins in term of raising output power for reduced gain antennas. Section 7.3 and 7.5 also show that low temperature condition is the worst test condition. Therefore, those two tests were performed under the worst test condition which is at low temperature only. We believe to raise the power for reduced gain antennas doesn't violate the limits on the rest of test, which EN328 requires due to there are plenty of margins on those test items.


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5.6. OUTPUT POWER WITH REDUCED GAIN ANTENNAS The maximum conducted power level for antenna assemblies with lower gains than specified in section 5.3 is determined by the EIRP limit and Frequency Range limit subject to a maximum conducted power level which the EUT is unable to comply. Preliminary test results demonstrate that there is a maximum power level which the EUT will not meet Frequency Range. The maximum power level is different for the edge channels and the mid channels. Preliminary test results demonstrate that the cabinet radiation shows only insignificant changes as a function of power level, over the range of power levels documented in this report. Final radiated and conducted spurious emissions were measured with the power set to the highest level which is 20dBm. Results show that the EUT complies with the Out-of-band spurious limit at this power level. The equation describing the relationship between output power and antenna assembly gain is: For the 802.11b mode, Maximum Conducted Power at normal environmental conditions = (20 dBm EIRP limit) - Antenna Gain - (0.23 dB margin due to extreme environmental effects) No additional correction factor is required for Spectral Power Density since the margin to the Spectral Power Density limit is greater than the margin to the EIRP limit. For the 802.11n HT20 mode, Maximum Conducted Power at normal environmental conditions = (20 dBm EIRP limit) - Antenna Gain - (0.33 dB margin due to extreme environmental effects) No additional correction factor is required for Spectral Power Density since the margin to the Spectral Power Density limit is greater than the margin to the EIRP limit. For the 802.11n HT40 mode, Maximum Conducted Power at normal environmental conditions = (20 dBm EIRP limit) - Antenna Gain - (0.45 dB margin due to extreme environmental effects) No additional correction factor is required for Spectral Power Density since the margin to the Spectral Power Density limit is greater than the margin to the EIRP limit.

OUTPUT POWER WITH REDUCED GAIN ANTENNAS IN 802.11b MODE Low Channels Average Conducted Power = 19.65 dBm - Antenna Assembly Gain Mid Channel Average Conducted Power = 19.72 dBm - Antenna Assembly Gain High Channel Average Conducted Power = 19.45 dBm - Antenna Assembly Gain

OUTPUT POWER WITH REDUCED GAIN ANTENNAS IN 802.11n HT20 MODE Mid Channels Average Conducted Power = 17.13 dBm - Antenna Assembly Gain Low Channel Average Conducted Power = 18.85 dBm - Antenna Assembly Gain High Channel Average Conducted Power = 15.30 dBm - Antenna Assembly Gain

OUTPUT POWER WITH REDUCED GAIN ANTENNAS IN 802.11n HT40 MODE


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Mid Channels Average Conducted Power = 18.95 dBm - Antenna Assembly Gain Low Channel Average Conducted Power = 19.17 dBm - Antenna Assembly Gain High Channel Average Conducted Power = 19.24 dBm - Antenna Assembly Gain


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5.7. DESCRIPTION OF TEST SETUP

SUPPORT EQUIPMENT

I/O CABLES

TEST SETUP The EUT is installed in a host laptop computer via an extended card during the tests. Test software exercised the radio card.

Description Manufacturer Model Serial NumberLaptop PC IBM T42 ZZ-27001AC/DC Adapter IBM 92P1016 11S92P1016Z1ZAC66AJ135

PERIPHERAL SUPPORT EQUIPMENT LIST

Cable Port # of Connector Cable Cable RemarksNo. Identica Type Type Length

Ports1 AC 1 US 115V Un-shielded 0.8m N/A2 DC 1 DC Un-shielded 1.8m Ferrite at one end

I/O CABLE LIST


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SETUP DIAGRAM FOR TESTS

LaptopEUT

AC Adapter

100-230VAC/50-60Hz

2

1

Extender Card


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6. 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 DueSpectrum Analyzer, 44 GHz Agilent / HP E4446A C01012 12/3/2007 3/3/2009Peak Power Meter Agilent / HP E4416A C00963 12/4/2007 12/4/2009Peak / Average Power Sensor Agilent E9327A C00964 12/7/2007 12/7/2009Antenna, Bilog, 2 GHz Sunol Sciences JB1 C01011 9/28/2007 9/28/2008Antenna, Horn, 18 GHz EMCO 3115 C00945 4/15/2007 4/15/2008Preamplifier, 26.5 GHz Agilent / HP 8449B C00749 8/3/2007 9/27/20082.4-2.5GHz Reject Filter Micro Tronics BRM50702 N02685 CNR CNROscilloscope, 100 MHz 4 Ch. Agilent / HP 54601A C00863 2/17/2008 2/17/2009Temperature / Humidity Chamber Thermotron SE 600-10-10 C00930 4/16/2007 4/16/2008Spectrum Analyzer, 26.5 GHz Agilent / HP E4407B C01098 11/1/2007 11/1/2008

TEST EQUIPMENT LIST


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7. TEST RESULTS

7.1. NORMAL AND EXTREME CONDITIONS

LIMITS None; for reporting purposes only.

RESULTS Normal conditions are 25 deg C, 230 VAC. The low temperature condition is 0 deg C. The high temperature condition is 35 deg C. The low voltage condition is 207 VAC. The high voltage condition is 253 VAC.

7.2. DUTY CYCLE

LIMITS None; for reporting purposes only.

RESULTS

Mode Tx on Tx on + Tx off Duty Cycle Duty Cycle Correction Factor(usec) (usec) (%) (dB)

802.11b 100 100 100.00 0.00802.11n HT20 100 100 100.00 0.00802.11n HT40 100 100 100.00 0.00


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7.3. EFFECTIVE RADIATED POWER

LIMIT ETSI EN 300 328 Clause 4.3.1.2 The equivalent isotropic radiated power (e.i.r.p.) shall be equal to or less than 100 mW (20 dBm) over normal and extreme conditions. This limit shall apply for any combination of power level and intended antenna assembly.

TEST PROCEDURE ETSI EN 300 328 Clause 5.7.2

CALCULATIONS Output Power = Measured Power + Test Cable Loss + Duty Cycle Factor EIRP = Output Power + EUT Antenna Gain

RESULTS


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7.3.1. 802.11b MODE

EUT Antenna Gain (dBi) = 3.62Duty Cycle Factor (dB) = 0.0

Test Cable Loss (dB) = 17.0

Condition Measured Output EIRP Limit MarginPower Power(dBm) (dBm) (dBm) (dBm) (dB)

2412 MHzNormal -1.21 15.79 19.41 20 -0.59Extreme T low, V low -1.01 15.99 19.61 20 -0.39Extreme T low, V high -0.98 16.02 19.64 20 -0.36Extreme T high V low -1.33 15.67 19.29 20 -0.71Extreme T high, V high -1.31 15.69 19.31 20 -0.69




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7.3.2. 802.11n HT20 MODE








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7.3.3. 802.11n HT40 MODE








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7.4. SPECTRAL POWER DENSITY

LIMIT ETSI EN 300 328 Clause 4.3.2.2 For wide band modulations other then FHSS (e.g. DSSS, OFDM, etc.), the maximum e.i.r.p. spectral density is limited to 10 mW (10 dBm) per MHz.

TEST PROCEDURE ETSI EN 300 328 Clause 5.7.3.1

CALCULATIONS Power Density (dBm/MHz) EIRP = Measured Power Density (dBm/MHz) + Duty Cycle Factor (dB) + EUT Antenna Gain (dBi)

RESULTS


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7.4.1. 802.11b MODE


Frequency Measured Power Density Limit Margin(MHz) Density (dBm/MHz) (dBm/MHz)

(dBm/MHz) EIRP EIRP (dB)2412 4.55 8.17 10 -1.832442 4.84 8.46 10 -1.542472 4.94 8.56 10 -1.44


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POWER DENSITY

POWER DENSITY LOW


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POWER DENSITY MID


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POWER DENSITY HIGH


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7.4.2. 802.11n HT20 MODE



(dBm/MHz) EIRP EIRP (dB)2412 0.05 3.67 10 -6.332442 2.28 5.90 10 -4.102472 -1.73 1.89 10 -8.11


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POWER DENSITY

POWER DENSITY LOW


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POWER DENSITY MID


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POWER DENSITY HIGH


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7.4.3. 802.11n HT40 MODE



(dBm/MHz) EIRP EIRP (dB)2417 -0.66 2.96 10 -7.042442 -0.60 3.02 10 -6.982467 -1.86 1.76 10 -8.24


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POWER DENSITY

POWER DENSITY LOW


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POWER DENSITY MID


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POWER DENSITY HIGH


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7.5. FREQUENCY RANGE

LIMIT ETSI EN 300 328 Clause 4.3.3.2 For all equipment the frequency range shall lie within the band 2,4 GHz to 2,4835 GHz (fL > 2,4 GHz and fH < 2,4835 GHz), over Normal and Extreme conditions.


RESULTS


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7.5.1. 802.11b MODE

Limit 2400 Minimum 2483.5 MaximumF low F high

Condition (MHz) (MHz)Normal 2401.84 2482.30Extreme T low, V low 2401.81 2482.36Extreme T low, V high 2401.82 2482.36Extreme T high V low 2401.87 2482.30Extreme T high, V high 2401.84 2482.27


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FREQUENCY RANGE F LOW

FREQUENCY RANGE FL (Normal Condition)


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FREQUENCY RANGE FL (T low, V low Condition)


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FREQUENCY RANGE FL (T low, V high Condition)


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FREQUENCY RANGE FL (T high, V low Condition)


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FREQUENCY RANGE FL (T high, V high Condition)


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FREQUENCY RANGE F HIGH

FREQUENCY RANGE FH (Normal Condition)


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FREQUENCY RANGE FH (T low, V low Condition)


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FREQUENCY RANGE FH (T low, V high Condition)


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FREQUENCY RANGE FH (T high, V low Condition)


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FREQUENCY RANGE FH (T high, V high Condition)


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7.5.2. 802.11n HT20 MODE




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7.5.3. 802.11n HT40 MODE




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7.6. TRANSMITTER SPURIOUS EMISSIONS

LIMIT ETSI EN 300 328 Clause 4.3.6.2 Table 2: Transmitter Limits for Narrowband Spurious Emissions

Frequency Range Limit when operating Limit when in standby

30 MHz to 1.0 GHz -36 dBm -57 dBm 1.0 GHz to 12.75 GHz -30 dBm -47 dBm

1.8 GHz to 1.9 GHz 5.15 GHz to 5.3 GHz -47 dBm -47 dBm

Table 3: Transmitter Limits for Wideband Spurious Emissions

Frequency Range Limit when operating Limit when in standby

30 MHz to 1.0 GHz -86 dBm/Hz -107 dBm/Hz 1.0 GHz to 12.75 GHz -80 dBm/Hz -97 dBm/Hz

1.8 GHz to 1.9 GHz 5.15 GHz to 5.3 GHz -97 dBm/Hz -97 dBm/Hz


TEST PROTOCOL EN 300 328 Clause 5.7.5 The levels of spurious emissions are measured as their power in a specified load (conducted spurious emissions); and their effective radiated power when radiated by the cabinet or structure of the equipment (cabinet radiation).

RESULTS


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7.6.1. 802.11b MODE

CONDUCTED SPURIOUS EMISSIONS

30 MHz TO 12.75 GHz CONDUCTED SPURIOUS (Low Channel)


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30 MHz TO 12.75 GHz CONDUCTED SPURIOUS (High Channel)


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HALF LENGTH BOARD (150-S0423)

RADIATED SPURIOUS EMISSIONS BELOW 1 GHz


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RADIATED SPURIOUS EMISSIONS ABOVE 1 GHz


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FULL LENGTH BOARD (150-S0412)



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7.6.2. 802.11n HT20 MODE




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FULL LENGTH BOARD (150-S0412)



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7.6.3. 802.11n HT40 MODE




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FULL LENGTH BOARD (150-S0412



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7.7. RECEIVER SPURIOUS EMISSIONS

LIMIT ETSI EN 300 328 Clause 4.3.7.2 Table 4: Narrowband Spurious Emissions Limits for Receivers

Frequency Range Limit

30 MHz to 1.0 GHz -57 dBm 1.0 GHz to 12.75 GHz -47 dBm

Table 5: Wideband Spurious Emissions Limits for Receivers

Frequency Range Limit

30 MHz to 1.0 GHz -107 dBm/Hz 1.0 GHz to 12.75 GHz -97 dBm/Hz

TEST PROCEDURE EN 300 328 Clause 5.7.6

TEST PROTOCOL EN 300 328 Clause 5.7.6 The levels of spurious emissions are measured as their power in a specified load (conducted spurious emissions); and their effective radiated power when radiated by the cabinet or structure of the equipment (cabinet radiation).

RESULTS


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8. RESULTS WITH REDUCED GAIN ANTENNAS 8.1. EFFECTIVE RADIATED POWER

LIMIT ETSI EN 300 328 Clause 4.3.1.2 The equivalent isotropic radiated power (e.i.r.p.) shall be equal to or less than 100 mW (20 dBm) over normal and extreme conditions. This limit shall apply for any combination of power level and intended antenna assembly.


CALCULATIONS Output Power = Measured Power + Test Cable Loss + Duty Cycle Factor EIRP = Output Power + EUT Antenna Gain

RESULTS All the data were taken at low temperature (the worst-case), which was proven in section 7.3.


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8.1.1. 802.11b MODE




2412 MHzExtreme T low, V low 2.86 19.86 19.86 20 -0.14Extreme T low, V high 2.88 19.88 19.88 20 -0.12




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8.1.2. 802.11n HT20 MODE






2472 MHzExtreme T low, V low -1.39 15.61 15.61 20 -4.39Extreme T low, V high -1.37 15.63 15.63 20 -4.37


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8.1.3. 802.11n HT40 MODE






2462 MHzExtreme T low, V low -0.35 16.65 16.65 20 -3.35Extreme T low, V high -0.31 16.69 16.69 20 -3.31


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8.2. FREQUENCY RANGE

LIMIT ETSI EN 300 328 Clause 4.3.3.2 For all equipment the frequency range shall lie within the band 2,4 GHz to 2,4835 GHz (fL > 2,4 GHz and fH < 2,4835 GHz), over Normal and Extreme conditions.


RESULTS All the data were taken at low temperature (the worst-case), which was proven in section 7.5.


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8.2.1. 802.11b MODE


Condition (MHz) (MHz)Extreme T low, V low 2401.81 2482.35Extreme T low, V high 2401.81 2482.35


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8.2.2. 802.11n HT20 MODE




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8.2.3. 802.11n HT40 MODE




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9. SETUP PHOTOS

RF CONDUCTED MEASUREMENT AT ANTENNA PORT

ANTENNA PORT CONDUCTED PHOTO


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ENVIRONMENTAL CHAMBER SETUP

ENVIRONMENTAL CHAMBER PHOTO


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RADIATED SPURIOUS EMISSIONS

RADIATED SPURIOUS FRONT PHOTO


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END OF REPORT

RADIATED SPURIOUS BACK PHOTO

08u11615-2a etsi 300 328 v1.7.1 wlan reportfaenl.msi.com/ftp/ce documents/desktop systems/wlan...

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