ANNEX TO RESOLUTION No. 533, OF SEPTEMBER 10 th 2009.

Transcription

1 ANNEX TO RESOLUTION No. 533, OF SEPTEMBER 10 th REGULATION FOR CERTIFICATION AND HOMOLOGATION OF TELECOMMUNICATION EQUIPMENTS REGARDING THE EVALUATION OF SPECIFIC ABSORPTION RATE (SAR) 1. Objective This Regulation establishes the minimum general and specific technical requirements to be demonstrated on the conformity evaluation for the measurement of the specific absorption rate (SAR) on portable terminal stations on the frequency band between 300 MHz and 6 GHz, for certification and homologation purposes under Telecommunications National Agency (Anatel). 2. References For the purposes of this Regulation, the following references are adopted: I. Regulation for Certification and Homologation of Telecommunications Products, approved by the Resolution Anatel no 242, of November 30 th II. Anatel Attribution, Destination and Distribution Plan of Frequency Bands on Brazil. III. Regulation of Limits to Exposure to Electrical, Magnetic and Electro-Magnetic Fields in The Radio Frequency Bands Between 9 khz and 300 GHz, approved by Resolution Anatel no 303, of July 2 nd IV. IEEE STD 1528 (2003) IEEE Recommended Practice for Determining the Peak Spatial Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques. V. EN50371:2002. Generic Standard to demonstrate the compliance of low power electronic and electrical apparatus with basic restrictions relate to human exposure to electromagnetic fields (10 MHz 300 GHz) General public, VI. IEC :2005. Human exposure to radio frequency fields from hand-held and bodymounted wireless communication devices Human models, instrumentation, and procedures Part 1: Procedure to determine the specific absorption rate (SAR) for hand-held devices used in close proximity to the ear (frequency range of 300 MHz to 3 GHz), VII. IEC DRAFT. Human exposure to radio frequency fields from handheld and body-mounted wireless communication devices - Human models, instrumentation, and procedures Part 2: Procedure to determine the Specific Absorption Rate (SAR) in the head and body for 30 MHz to 6 GHz Handheld and Body-Mounted Devices used in close proximity to the Body, VIII. FCC OET65 Supplement C. Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields - Additional Information

2 for Evaluating Compliance of Mobile and Portable Devices with FCC Limits for Human Exposure to Radiofrequency Emissions - Supplement C. IX. AUSTRALIAN COMMUNICATIONS AUTHORITY, Radiocommunications (Electromagnetic Radiation Human Exposure) Standard, 2003, X. UNITED STATES ARMY, Gordon, C. C., Churchill, T., Clauser, C. E., Bradtmiller, B., McConville, J. T., Tebbetts, I., and Walker, R. A Anthropometric Survey of U.S. Army Personnel: Methods and Summary Statistics Technical Report NATICK/TR- 89/044, U.S. Army Natick Research, Development and Engineering Center, Natick, Massachusetts, Set XI. Kuster N., Kästle, R., and Schmid, T. Dosimetric evaluation of mobile communications equipment with known precision IEICE Transactions on Communications, May 1997, vol. E80-B, no. 5, pp XII. BRAZILIAN ASSOCIATION OF TECHNICAL STANDARDS ABNT. NBR ISO/IEC General requirements for competence of testing and calibration laboratories, XIII. BRAZILIAN ASSOCIATION OF TECHNICAL STANDARDS ABNT and NATIONAL INSTITUTE OF METROLOGY INMETRO. Guide to expression of measurement uncertainty, Third Brazilian edition, Definitions For the purposes of this Regulation the following definitions are applicable: I. Accessories: Parts or pieces that can be used in conjunction with a portable terminal station and that allow the use of this portable terminal station otherwise than that which the station was designed in close proximity to the human body, ie at a distance not exceeding 20 cm. Are considered as type of accessories: Accessories for fixing, use, or for any type of carrying station next to the human body. Example: Cases for the stations made of tissue or leather with or without metallic parts, station support for belt, for station use on waist, etc. Accessories for the performance of tasks or provide other features to portable terminal station. Example: Geographic location modules (GPS), printers, MP3 players, cameras or other devices for viewing, etc. Accessories that provide audio/video input or output with wire connection or wireless. Example: headsets, microphones, cameras, etc. Auxiliary batteries and other supply components not originally provided by the manufacturer. Accessories that provide some kind of alteration on the radiant system characteristics. Example: auxiliary antennas, etc.

3 Combination of one or more accessories where two or more of the accessory types described are combined into a single component. Example: belt support with wireless interface, as Bluetooth, etc. II. Portable terminal stations: transmitters stations characterized by the portability of the used equipments and whose radiating structures, when in operation, are located less than 20 (twenty) centimeters away from the user s body. III. Portable terminal stations with multiband operation: portable terminal station with operation mode that can transmit several radiofrequencies. IV. Portable terminal stations of low power: portable terminal station where the average power emitted on an average time of 6 (six) minutes is equal to or less than 20 mw and the peak of emitted power is less than 20 W. V. SAR spatial average peak or maximum SAR on the spatial average or Peak on the SAR spatial average: Maximum average SAR value within a specific mass (from the English peak spatial average SAR ). VI. Mannequin - plan: refer to the mannequin for SAR measurements on portable terminal station operating in other positions than those located against the side of the head, ie as non-limiting examples, positions close to the user s body, or positions of portable terminal operating on the front of the user s face. VII. Mannequin SAM or dummy: refer to the Specific Anthropomorphic Mannequin SAM (from the English Specific Anthropomorphic Mannequin ) for SAR measurements on portable terminal station operating close to the user s head. VIII. Portable Terminal to be Certified (TSC): telecommunication terminal to be submitted to the tests prescribed on this Regulation, aiming its certification. 4. General Characteristics 4.1 Environment Specifications For the SAR measurements performance, the laboratory must meet the following conditions: a) Environment temperature must be between 18 C and 25 C. b) Simulator liquid temperature: during the SAR measurement the variation of the liquid temperature must be less than ±2 C and the difference between the simulator liquid temperature during the SAR measurement and the simulator liquid temperature during the dielectric parameters measurement must be less than 2 C. c) Environment Noise (RF): must be less than 0,012 W/kg, ie, less than 3% of the lower detection limit, 0.4 W/kg. This measurement must be done with all the laboratory internal transmitters off.

4 d) Environment Noise due to reflection: the environment noise of the laboratory where the SAR measurement is realized must be less than 3% of the measured SAR. All the laboratory internal transmitters must be on during the measurement of this parameter. e) Connection to external wireless networks: the portable terminal station cannot connect to any wireless network external to the laboratory where the measurement is being realized. f) Validation of the measurement system: must be realized once a year, or when a new system is installed, or on any modification of a SAR measurement system in operation. Among these changes can be mentioned, the software exchange, the maintenance of part of the system, the use of different isometric probes. The validation of the system must be realized according to the Annex D of the Standard IEC 62209:1 or according with the item 8.3 of the Standard IEEE Specification of the SAR Measurement System The SAR measurement system is composed by a isotropic probe of small diameter, a system for scanning and positioning with multiple axes, one or more mannequins or dummy ( phantom ), a support for the portable terminal station under test, a computer for control and measurement instrumentation for the measurements performance Other auxiliary parameters are necessary for the measurements performance of the tissue simulator liquid dielectric parameters and also on the verification of the SAR measurement system s operation The system for SAR measurement on portable terminal station must be validated once a year ( system validation ), or when one of the following conditions occurs: on the beginning of its operation, any changes on its operational conditions, such as a new software version, the use of new electronic for reading, different types of probes, and on the o return of items sent for calibration The procedure for the validation of the SAR measurement system must be performed according to the item 8.3 of Standard Norma [Item 2 IV] or on Annex D of Standard [Item 2 VI] and/or on Annex B of Standard [Item 2 VII]. 4.3 Specification of the Isotropic Probe The total external diameter (sensors and protective cover) of the isotropic probe must be less than or equal to 8 mm on the position where are located the electric Field sensors for measurements with frequencies up to 2 GHz. For frequencies equal to or higher than 2 GHz the tip diameter must be less than or equal to 16 mm/ frequency (on GHz) The minimum limit of probe detection must be 0,01 W/kg and the maximum limit must be higher than 100 W/kg.

5 4.3.3 The linearity of the isotropic probe answer must be between ± 0,25 db on the probe SAR measurement band The maximum axial isotropy error of the probe must be of ± 0,25 db and the maximum hemispheric isotropy error must be of ± 0,5 db. These errors are considered on the band of the portable terminal station under test The isotropic probes used on the measurement must be calibrated on simulator liquid according to the dielectric parameters specified for each frequency band with the procedures established on the Annex A of the Standard IEEE [Item 2 IV] or on the Annex B of the Standard IEC 62209:1 [Item 2 VI] The instruments used for the calibration must be traceable by the national or international metrology institutions, i.e., INMETRO in Brazil, NIST in EUA, NPL in England etc The laboratory or institution that realizes the calibration of the isotropic probes must be credited by the Standard ISO Specifications of the Mannequin SAM The scanning of the electric field probe must be done inside of the bisected mannequin s half SAM The physical characteristics of the mannequin s model (size and forms) for the test of the portable terminal station must simulate the user s head The head s mannequin must be made as a container holding the simulator liquid inside of its forms ( shell ) to allow the probe to realize the scanning The mannequin SAM must have at least three points of reference, provided by its manufacturer, to be used as spatial reference on the correlation of the scanning system and the mannequin SAM. These points must be visible for the operator and spaced by at least 10 cm The user s hand must not be modeled, because it changes the values of SAR and its implementation difficult the test standardization process according item of the Standard IEEE 1528 [Item 2 IV] The support s characteristics of the portable terminal station are described on the item The form of this mannequin SAM is derived from the sizes and dimensions of the 90 th percentile of the adult men s heads according to the published on [Item 2 IX], with the ears adapted to represent them pressed by the user of the mobile terminal station The wall ( shell ) of the mannequin SAM must be constructed of dielectric material of low loss with a dielectric constant lower than 5.0 and with loss tangent that not exceed 0.05.

6 4.4.9 The wall thickness of the mannequin SAM must be of 2.0 mm with a variation lower than ± 0.2 mm on all the regions where there are SAR measurements The material of the wall must be resistant to the chemical products used on the simulator liquid to preserve the tolerances specified on this Regulation The ear s spacers, representing the ears pressed by the user, must be of the same material of the mannequin SAM s wall and will provide a spacing of 6 mm between the simulator liquid and the ear reference points (ERPs - ear reference points ) with a tolerance lower than ± 0,2 mm. Figure 1 Front, rear and side of mannequin showing the reference points of the left (LE) and right (RE) ears, the reference point of the mouth, the line of reference N F and the central range The internal and external dimensions of the mannequin SAM are defined according to the item D.2 of the Annex D of the Standard [Item 2 IV] or item A.2 of the Standard IEC 62209:1 [Item 2 VI] The Figure 1 shows the marks that must be present on the mannequin SAM for standardizes and facilitate the positioning of the portable terminal station during the SAR measurement.

7 The mannequin SAM must be filled with the factory simulator liquid with depth of 15 ± 0,5 cm The SAR measurement on the portable terminal station that operates close to the head must be realized with the mannequin SAM sagittally bisected on the dimensions defined previously, according to figure 2. This type of mannequin is known as Twin SAM. This configuration is composed by a left face, for tests using the portable terminal station operating on the left ear, a right face, for mobile terminal station operating on the right ear and a plan part, between the right and left parts of the mannequin SAM, that is used on the tests of accessories that operates together with the user s body and on other tests configurations described on this Regulation. 1 Figure extracted of the reference [Item 2 VI].

8 Figure 2 Mannequin type Twin SAM, sagittally bisected with extended perimeter (showed positioned on its side as used for the SAR measurement) Specifications of the Mannequin - Plan The form of the mannequin plan must be of a container opened at the top with flat bottom The mannequin plan must be large enough to allow the coupling with the radiating RF antenna and to enable scan to determine the SAR on 10 g of contiguous tissue during the measurements on portable terminal stations under test or on the control and system validations procedures The mannequin plan has its dimensions according described below: a) The form of the mannequin will be an ellipse with a length of 600 mm ±5 mm and width 400 mm ±5 mm. The bottom of the mannequin plan s container must have a thickness of 2,0 mm with a variation lower than ± 0,2 mm on all the regions where there are SAR, control and validation measurements, according the Figure 3. 2 Figure extracted of the reference [Item 2 VI].

9 Figure 3 Dimensions of the mannequin plan

10 b) For frequencies over 300 MHz and separation distance between the TSC and the external surface of the mannequin plan back wall lower than 25 mm, is allowed the use of the mannequin plan lower otherwise of this to the conditions below: c) Must be 20% higher than the width and length of the portable terminal stations under test including its antenna. d) The mannequin plan must involve the portable terminal stations under test with a minimum margin of 10% on all the directions. e) For portable terminal stations with operation frequency between 300 and 800 MHz, the mannequin plan can have any form since covering an ellipse with length of 0,6 of the air wavelength and width of 0,4 of the air wavelength. f) For portable terminal stations with operation frequency over than 800 MHz and lower than 6 GHz, the mannequin plan can have any form since covering an ellipse with length of 225 mm and width of 150 mm. g) The ellipse external form is not important and will be chosen by the user The mannequin plan must be filled with a minimum depth of 15 cm. When full, the bottom of the mannequin plan cannot bend beyond 1% of the maximum dimension of the portable terminal stations under test or the dipole used on the validation or system control, ensuring that the contact area of the surface of the portable terminal station under test is maximized The wall ( shell ) of the mannequin plan must be constructed of dielectric material with low loss and low permittivity with loss tangent (tan δ) not exceeding 0.05 and relative permittivity (εr ) lower than 5 for frequencies lower than 3 GHz and of 4.0 ±1.0 for frequencies higher than 3 GHz The material of the wall must be resistant to the chemical products used on the simulator liquid to preserve the tolerances specified on this Regulation. 4.6 Support for the Portable Terminal Station under Test The function of the support for the portable station under test is the performance of the positioning repetitively and controlled The support must be constructed of dielectric material(s) with low with dielectric constant of 5.0 and with loss tangent of The support for the portable terminal station under test cannot have parts or metallic pieces on its constructions The mechanical construction of the support must allow that the station under test is positioned according with the definitions of this Regulation and with tolerance of ±1 on the slope angle.

11 4.6.5 The support to maintain the portable station during the measurement cannot affect the SAR value more than ± 5%. The verification if the support not disturbs the measurement must be realized through a test of substitution of the support by foam blocks with low permittivity and low loss or by adhesive tape to handle the station under test to the mannequin. 4.7 Specifications of the Liquid The dielectric properties for the simulator liquids of the human tissues are on the Table To obtain the dielectric properties for the simulator liquids of the human tissues according to the frequencies not presented on the Table 1 must be used the linear interpolation The parameters described on the Table 1 are equivalent to the properties of the human tissues at the temperature of 37 C for use on the homogeneous mannequins with use on a single tissue For frequencies between 300 MHz and 2 GHz, the measured values of conductivity and relative permittivity must be must be within ± 5% of the core values described on Table 1.

12 Table 1 Dielectric properties of the human tissues simulator liquids

13 4.7.5 For frequencies on the band between 2 GHz and 6 GHz, the values of relative conductivity and permittivity must be of ±5%, may be admitted, on specific conditions, the value of up to ±10% The temperature of the liquid during the SAR measurement must be within ± 2 C of the temperature on which the dielectric parameters are measured. The environmental temperature during the dielectric parameters measurements must meet the disposed on item The human tissue simulator liquid must be always characterized before its use on the SAR measurement. This characterization is valid by a period of 24 hours, after this period, a new characterization must be done for the use of the simulator liquid. The procedure for the simulator liquid characterization is described on The simulator liquid must be slightly shaken after insertion on the mannequin and must be free of bubbles for the performance of SAR measurement The viscosity of the simulator liquid cannot prevent the motion of the isotropic probe inside of the mannequin with the liquid. For this Regulation, the density of the simulator liquid is assumed to be kg/m3, if the liquid is prepared according to indicated on item If other receipts are used is necessary that the density is equal to kg/m3 to keep the average volume of 10 cm3 when evaluating a mass of 10 g The simulator liquid must have a depth of at least 15 centimeters at the mannequin to avoid reflections of the liquid surface The receipts and characteristics of the ingredients used on the liquid prepare must follow the recommendations described on the Annex I of the Standard [Item 2 VI], on the Annex C of the Standard [Item 2 IV] or on the Appendix C of the Addendum C of regulation OET 65 [Item 2 VIII]. 5. Test Methods for the Telecommunications Equipments Evaluations under the aspects of the Specific Absorption Rate (SAR) Evaluation 5.1 Test General Conditions The test methods for the conformity evaluation under aspects of the specific absorption rate (SAR) evaluation are the presented below on the item Alternative methods can be used through agreement between certification s Requester, the Test Laboratory and the Designated Certification Body under Anatel s previous approval. The description and justification of the alternative method agreed must be present on the Test Report The Portable Terminal to be Certified (TSC) presented for evaluation must be representative of the models on production and appropriate set must be provided for the conformity tests The test methods described on this Regulation are not applicable to portable terminal stations of low power. The demonstration of attendance of these stations to the

14 basic restrictions for exposure of the general public established by resolution 303 [Item 2 III] must be realized according to items 4 and 5 of Standard Norma EN 50371:2002 [Item 2 V]. 5.2 Test Configuration Previous Preparation The laboratory when realizing the SAR measurements on the TSC must ensure the attendance to the items Environment s Specifications, SAR Measurement System s Specifications, Isotropic Probe s Specifications, Mannequin s Specifications, Support for the Portable Terminal Station under Test and Liquid s Specification described on this Regulation The characterization of the dielectric parameters of the simulator liquid must be realized according to the procedures described on the Annex B of the Standard [Item 2 IV] or on the Annex J of the Standard [Item 2 VI] or on the Annex I of the Standard [Item 2 VII]. The validity of the characterization of the simulator liquid is 24 hours, ie, the use of the liquid on the process of SAR measurement must be within this period, if this is not possible, a new characterization must be realized before the continuity or SAR measurement performance The SAR measurement on a portable terminal station must be realized only after the procedure of control or verification ( system check ) of the SAR measurement system, on its transmission frequency band The control procedure function is the daily and systematic verification of the set involved on the SAR measurement and must be realized according to the item 8.2of the Standard IEEE [Item 2 IV] or on the Annex D of the Standard IEC [Item 2 VI] or on the Annex B of the Standard IEC [Item 2 VII] The validity of the control procedure is 24 hours, since the frequency band of the station under test is equal to that one where the control procedure was realized Preparation of the Portable Terminal Station The SAR measurement on the portable terminal station must be realized according the following requirements: a) The station under test will use its internal transmitter; b) The antenna(s), battery(ies) and accessories of the station under test must be specified by the manufacturer. c) If the station under test has antenna that can be fully extended or fully retracted, both positions must be tested. d) If the manufacturer provides optional antennas for the station, these ones must also be tested.

15 e) The battery must be fully charged before each test and must remain loaded throughout the test. f) If the manufacturer provides battery with different load capacity and different dimensions both must be tested on all situations described on this Regulation. g) If the station under test operates with connected cable, ear phones or other devices, the TSC must be tested according described on item h) The station under test cannot have any external connection for feeding or network connection. i) The output Power and the operation frequency (channel) of the TSC must be controlled through the use of an internal test program ( test mode ) or through the use of a radio base station simulator. j) The TSC cannot exceed the established SAR limit on all channels under test of its transmission band. k) The test must be realized on the channel closer to the center frequency of transmission band. If the bandwidth of the transmission frequency ( f = fhigh flow, where fhigh is the higher frequency on the band and flow is the lower frequency on the band) exceed 1% of its central frequency (fc), so the channels, on the minimum and maximum frequencies of the transmission band, must also be tested. l) If the transmission bandwidth exceeds 10% of its central frequency, the following formula must be used to determine the number of channels to be tested (Nc). Nc = (2 x Nb)+1 Where: Nb = higher entire number of (10 f / fc) m) The TSC must transmit its maximum power on all test conditions. n) The SAR measurements must be done on all operational configurations of the station under test and on all its use modes, with and without accessories Measurement Positions of the Portable Terminal Station Operating Closer to the Head/Ear The positions for the SAR measurements on the portable terminal station operating closer to the head are: a) cheek position and, b) tilt position The portable terminal station must be tested on the two positions on the right and left sides of the mannequin SAM.

16 The definition of the cheek position must be according to the item of the Standard [Item 2 IV] or with the item of the Standard [Item 2VI] The definition of the tilt position must be according to the item of the Standard [Item 2 IV] or with the item of the Standard [Item 2 VI] If the construction of the terminal station is such as the described procedures do not represent the normal use condition, an alternative alignment procedure must be used. This procedure should be described in detail on the test report The Figure 4 and the Figure 5 are illustrations that show the correct positioning of the portable terminal station under test The Figure 6 illustrates how must be the use of the reference lines on the terminal station under test. Figure 4 Illustration of the cheek position on the Mannequin SAM

17 Figure 5 Illustration of the tilt position on the Mannequin SAM Figure 6 Reference points on two typical models of portable terminal stations Measurement positions of the Portable Terminal Station operating closer to the body The SAR measurements on the conditions where the portable terminal station operates closer to the body must be realized together with the distance lower than 20 cm of any part of the human body and not closer to the ear The SAR measurements on portable terminal station operating closer to the body must be realized on mannequin plan (according established on item 4.5). The plan area of the mannequin Twin SAM can also be used.

18 On both mannequin types must be complied with limitations on the dimensions of the portable terminal station under test described on item The portable terminal station under test must be placed under the mannequin plan and both center, station under test and mannequin plan, must match The portable terminal station that has several use positions must be evaluated only on the position that has the lower distance between it and the mannequin plan. On this item is treated only the use conditions of the station without accessories. In the case of the portable station have accessories the measurements must be realized according to the item Measurement positions of the Portable Terminal Station and Accessories The SAR measurement on the Portable Terminal Station with its accessories must be realizes on the mannequin plan on the use configuration of the station together with each accessory A portable terminal station provided with various accessories that not present conductible parts (metal) on their manufacturing must be tested only with the accessory that is placed closer to the mannequin plan A portable terminal station provided with various accessories that present a single conductible part (metal) on their manufacturing must be tested with each accessory If several accessories use the same metallic part, only the accessory that is placed closer to the mannequin plan must be tested A portable terminal station provided with simultaneous multiband transmission capacity must be tested on the mannequin plan and/or on the mannequin SAM according established on item A portable terminal station provided with output to ear phone through cable connection must be tested on the mannequin plan with the cable and the ear phone The SAR measurement on the portable terminal station with accessories is divided into two situations: a) If the accessory is specifically recommended and of the type that the portable terminal station can stay inside, the station must be inserted into the accessory and both will be placed on the mannequin plan for the SAR measurement in one of the following ways: As specified on the user s manual, or; If not specified on the user s manual, the closest as possible according to the normal position of use and shown on Figure 7.

19 If the station under test can be placed in various ways on the accessory all of them must be tested. Figure 7 Schematic representation of the Station under Test positioning with defined accessories. b) If there are no accessories for the station under test, the SAR measurement must be realized in one of the following ways: The station will be placed on the mannequin plan at the distance specified on the user s manual, or; If not specified on the user s manual, the separation distance between the station under test and the mannequin plan s wall will be of 0 (zero) centimeters. The body of the station under test will be placed parallel to the mannequin plan and the SAR measurement must be realized with the rear of the station under test in contact with the mannequin plan s wall and then with the front of the station under test in contact with the mannequin plan s wall. Figure 8 Schematic representation of the Station under Test positioning with not defined accessories Measurement positions of portable terminal stations operating in front of the user s face The operation s configuration of a portable terminal station in front of the user s face is typical of trunked transceivers (PPT radios from the English Push To Talk ) This type of terminal station must be placed parallel to the mannequin plan s wall on a maximum distance of 2.5 centimeters. If the user s manual specifies an operation distance lower than 2.5 cm, the distance described on the manual must be used on the test. The Figure 9 shows the positioning of this station under test.

20 Figure 9 Schematic representation of the Station under Test positioning operating in front of the user s face Measurement positions of portable terminal stations for use on the user s hand, not closer to the head or body Portable terminal stations for use on the user s hand with integrated RF module whose operation is at a distance greater than 20 centimeters of the user s head or body. As examples of this technology can be mentioned, Personal Digital Assistant PDA and Wireless Point Of Sale WPOS The station under test must be placed directly against the mannequin plan s wall according to the described on the user s manual or according to the Figure 10 and always on the same way that is wielded during use. Figure 10 Schematic representation of the Station under Test positioning used on the hand and on more than 20 cm of the head and body Measurement positions of portable terminal stations for use on other members Portable terminal stations for use on other members with integrated RF module and that does not fit into any previous description must be tested on the mannequin plan to reproduce the use described on the user s manual or its common use When the use faithful reproduction is not possible, the station under test must be placed so that the RF emitter source or other metallic parts have distance lower than to

21 the mannequin plan of the common use distance. The Figure 11 shows the positioning of a wristlet on the mannequin plan. Figure 11 Schematic representation of the Station under Test positioning used on other members Procedure for each configuration of maximum SAR measurement on the Spatial average To determine the maximum SAR on the spatial average on a portable terminal station all the conditions described on the items Previous Preparation, Preparation of the Portable Terminal Station, Measurement Positions of the Portable Terminal Station Operating Closer to the Head/Ear and Measurement positions of the Portable Terminal Station operating closer to the body must be followed suitable for the portable terminal station under test For each configuration of the portable terminal station under test must be realized the steps described on the items , , e In this way all the positions of the station (head, body and members), configurations and operational modes must be tested for each frequency band according the steps described on the following items Step 1 Power reference measurement (variation drift ) The local SAR must be measured with the use of an electric field probe on a test point inside of 10 mm or less on the normal direction to the internal surface of the mannequin (SAM or plan) filled with the suitable simulator liquid Step 2 Area Scan The SAR distribution must be scanned longitudinally inside of the internal surface of one of the mannequin SAM s head sides, for measurements closer to the head/ear. In the case of the mannequin SAM s scan is realized only one scanning The scanning area must cover all the areas that are exposed and surrounded by the projection of the portable terminal station under test on the mannequin SAM or plan. The Figure 12 illustrates an example of scanning on mannequin SAM mannequin plan.

22 Figure 12 Examples of Area Scan (mannequin SAM and plan). The white points indicate that the scanned area must be greater than the projected area of the station under test on the mannequin The distance between the points measured during the scanning and the mannequin surface must be of 8 mm or lower and remains constant, with a variation of ±1 mm. Laterally, the measured points must have enough spatial resolution to the interpolation algorithm of the SAR measurement systems to identify the local with SAR peaks inside of the half of linear dimension 3 of a volume side of the zoom scan, so, the step of the spatial mesh of the measured points must be lower than 20 mm Is recommended that, on all the scanning measurement points, the probe angle in relation to the normal line to the surface is lower than On the SAR distribution obtained on the scanning, must be identified the position with the maximum value of SAR, as well as any local maximum with SAR value inside of 2 db that is not inside of the volume of the zoom scan. Additional peaks must be measured only when the primary peak is within 2 db of the SAR limit SAR (ie, 1.26 W/kg for a limit of 2 W/kg on a cube of 10 g) The position(s) identified on the item (previous) will be evaluated with the volume zoom scan to determine the higher average SAR value on the cube of 10 g If a peak is founded on a distance from the scanning edge lower than the half of the cube linear dimension (10.8 mm for cube of 10 g and 5.0 mm for the cube of 1 g), the scanning area must be increased, if possible Step 3 Zoom Scan After the peaks are located on the area scan (item ), the maximum spatial average SAR must be obtained though the zoom scan. This scanning has a minimum dimension of 1,5 times the edge length of a cube of 1 gram or 10 grams, or 15 and 32 mm, respectively. 3 The half of the linear dimension of a cube of 10 grams is 10.8 mm and of the cube of 1 gram is 5 mm.

23 The zoom scan must be at least of 32 mm x 32 mm x 30 mm with 5 x 5 x 7 points centered at the peak SAR local determined on the area scan The mesh step on the vertical direction on the zoom scan must be calculated by the relation (8-f [GHz]) and not be greater than 5 mm. On the horizontal direction, parallel to the surface, the step must be calculated by the relation (24/f [GHz]) and not be greater than 8 mm, since is adopted the regular spacing on the mesh (see Annex C.3.3 of the Standard [Item 2 - VI], if the mesh spacing is not regular, the step on the horizontal direction must be calculated by the relation (12/f [GHz]) and not be greater than 4 mm. The use of these resolutions allows that the interpolation algorithm calculates the SAR values on a mesh with step of 2 mm with error lower than 5%. If other resolutions are adopted is necessary to validate this result If the volume of the chosen cube to calculate the maximum spatial average SAR touched any perimeter of the zoom scan volume, the zoom scan must be repeated with the zoom scan center changed to the new maximum SAR location For all other secondary peaks found on the step 2 (item ) that are inside of 2 db of the maximum peak and are not inside of this zoom scan, the step 3 must be repeated Is recommended that, on all the measurement points on the zoom scan, the probe angle in relation to the normal line to the surface is lower than The value of the maximum spatial average SAR must be obtained through interpolation and extrapolation procedures. These procedures must follow the established on the Annex C of the Standard [Item 2 VI] or in the items 6.5.3, F.4.1.3, F and F of the Standard [Item 2 IV] The values of SAR interpolated and extrapolated of the zoom scan measurements must be integrated on the form of a cube of 10 grams to determine the maximum spatial average SAR on the zoom scan region. The SAR conformity of the portable terminal station under test is determined through the greater value of SAR 10 grams obtained on all the zoom scans realized on each area scan Step 4 Power reference measurement (variation drift ) The local SAR 4 must be measured exactly on the same place of the Step 1 (item ). The absolute value of the measurement variation between the obtained on the Step 4 and on the Step 1 must be lower than ± 5% If several zoom scans are realized, the power reference measurement must be always measured. The variation must be always calculated for each one of the measurements, but the variation between the obtained on the Step 1 and the last measurement must be lower than ± 5%. 4 If the measurement system provides the variation result ( drift ) on electric field values (V/m), the maximum absolute variation must be of ± 0.2 db.

24 Evaluation of the maximum spatial average SAR for all configurations of a portable terminal stations operating closer to the head The determination of the greater value of the maximum spatial average SAR of a portable terminal station must be measured on all positions of the station, all configurations and all the operation modes on each frequency band according established on steps 1 to 3 as follows. The Figure 13 shows the block diagram of the process to determine the maximum spatial average SAR Step 1 The tests described on the item must be realized on the channel that is closer to the transmission frequency band center for: a) All the positions of the portable terminal station under test, cheek and tilt, for both sides, left and right, of the mannequin SAM, as described on the item b) All configurations for each position of the previous item (a), ie, extended and retracted antenna, as described on c) All operational models for each position of item (a) and configurations of item (b) on each frequency band, ie analogical and digital, as described on If the number of channels to be tested, as calculated on item (Nc > 3), is greater than three, so all channels, configurations and modes must be tested for each one of the previous configurations Step 2 For the condition that provides the maximum spatial average SAR determined on Step 1 (item ) for each frequency, all the tests described on item must be realized on all the other channels of the band, on the lower and upper channels. Additionally, for all the other conditions (station positions, configurations and operational modes) where the value of the maximum spatial average SAR determined on Step 1 (item ) within 3 db of applicable SAR limit. It is recommended that all other conditions are tested Step 3 The values obtained on Steps 1 and 2 must be examined to determine the maximum spatial average SAR of the portable terminal station under test.

25 Figure 13 Block diagram of the tests to be realized portable terminal station operating closer to the head

26 Evaluation of the maximum spatial average SAR for all configurations of a portable terminal stations operating closer to the body The determination of the greater value of the maximum spatial average SAR of a portable terminal station must be measured on all positions of the station, all configurations and all the operation modes on each frequency band according established on steps 1 to 3 as follows. The Figure 14 shows the block diagram of the process to determine the maximum spatial average SAR Step 1 The tests described on item must be analyzed and chosen the use situations that the portable terminal station will have, such as which accessories are available for sue together with this station. After this choice the tests must be realized on the channel closer to the center of the transmission frequency band for: a) All the positions of the portable terminal station under test of the mannequin plan. b) All configurations for each position of the previous item (a), ie, extended and retracted antenna, as described on c) All operational models for each position of item (a) and configurations of item (b) on each frequency band, ie analogical and digital, as described on If the number of channels to be tested, as calculated on item (Nc > 3), is greater than three, so all channels, configurations and modes must be tested for each one of the previous configurations Step 2 For the condition that provides the maximum spatial average SAR determined on Step 1 (item ) that are within 3 db of the applicable SAR limit must be realized all the tests described on on all the other channels of the band, ie, on the lower and upper channels. It is recommended that all other conditions are tested Step 3 The values obtained on Steps 1 and 2 must be examined to determine the maximum spatial average SAR of the portable terminal station under test for each one of the positions and accessories analyzed.

27 Figure 14 Block diagram of the tests to be realized portable terminal station operating closer to the body

28 5.3 Measurement Uncertainty The concepts of uncertainty estimative of the SAR values produced by the portable terminal stations are based on the general rules provided by ABNT/ISO/IEC on the Guide for expression of the measurement uncertainty [Item 2 XIII] The total uncertainty expanded to a confidence level of 95% for the measurement of the maximum spatial average SAR cannot be greater than ± 30% for values on the band between 0.4 W/kg up to 10 W/kg The calculation of the uncertainty must be realized according to the item 7.2 and the Annex E of the Standard [Item 2 IV] or with the item 7 of the Standard [Item 2 VI] for SAR measurements on portable terminal stations that operates closer to the user s head (Mannequin SAM) and according to the item 7 of the Standard [Item 2 - VII] for SAR measurements on portable terminal stations that operates on other positions that not those located against the head s side (Mannequin plan) The uncertainty values, calculated according previous paragraph, must be informed at the test report of the terminal station under test. 5.4 Measurement Report The results obtained from the measurements must be passed to a measurement report that must include all the information necessary to the interpretation of the obtained results. The guidelines for the measurements report preparation are found on the item 5.10 of the Standard of ABNT/ISO/IEC [Item 2 XII]. 6. Procedure for test of portable terminal station with multiband operation 6.1 This procedure must be applied to portable terminal stations with multiband operation that have two or more transmitters on the frequencies f1, f2,...fx separated for more than one bandwidth of the isotropic probe calibration used on the SAR measurement system or by the bandwidth of the tissue simulator liquid, what is less, ie, when SAR cannot be mapped simultaneously using the same probe and the same liquid. 6.2 It can be used the following methods to obtain the maximum multiband SAR value that must meet the established on the legislation. 6.3 Method 1 Mapping by the sum of the maximum spatial average SAR values This method provides the easiest and most conservative estimative for obtaining the maximum spatial average SAR of the portable terminal stations with multiband operation Step 1: To obtain the maximum spatial average SAR value separately on all frequencies (frequency 1, frequency 2,... frequency x) of the station with multiband operation, according to established on item 5.

29 6.3.3 Step 2: To sum the maximum spatial average SAR values to obtain the multiband SAR value. 6.4 Method 2 Mapping by the selection of the highest mapped values of the maximum spatial average SAR This method gives an accurate estimate of the multiband SAR when the zoom scan distributions obtained separately have no or have a small overlap Step 1: To obtain the maximum spatial average SAR value separately on all frequencies (frequency 1, frequency 2,... frequency x) of the station with multiband operation, according to established on item Step 2: For tests realized on equal conditions, examine to what extent the SAR distributions overlap by adding the scans area of spatial form, ie, point to point Step 3: If the maximum SAR peak resulting values of the added distribution are lower than 5% of the maximum peak SAR value, so the multiband SAR is equal to the greater value of the maximum spatial average SAR values. 6.5 Method 3 Mapping by the data calculation of the volumetric SAR This procedure uses area scan and zoom scan measurements together with interpolation and extrapolation for the data generation of the volumetric SAR. It can be applied on any case for obtaining multiband SAR Step 1: On each one of the frequencies, calculate the SAR volumetric distribution over the region projected by the area scan. The uncertainty of the used method must be calculated and registered Step 2: To add spatially the SAR volumetric distributions of all frequencies, using interpolation if necessary Step 3: To calculate the maximum spatial average SAR according to this Regulation through extrapolation of step Method 4 Mapping by volumetric scan This procedure is the most accurate for the multiband SAR mapping. It can be applied on any case for obtaining multiband SAR Step 1: To determine a volumetric mesh that covers all the zoom scan of all frequencies (f1, f2,..., fx) previously measured Step 2: On each frequency (f1, f2,..., fx) to realize the zoom scan with the volumetric mesh determined on step 1. This measurement of the zoom scan must follow all the conditions of this Regulation, except on the volume s dimension. The measurements must be realized with a single frequency transmitting at a time.

30 6.6.4 Step 3: To add spatially the SAR distributions obtained on step 2 to obtain the added SAR distribution. To calculate the maximum multiband SAR of this distribution added according to this Regulation using extrapolation to determine the maximum spatial average SAR.