BCGA2140Wireless Charger

Regulatory Compliance Information FCC Compliance This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment to an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Changes or modifications to this product not authorized by Apple could void the electromagnetic compatibility (EMC) and wireless compliance and negate your authority to operate the product. This product has demonstrated EMC compliance under conditions that included the use of compliant peripheral devices and shielded cables between system components. It is important that you use compliant peripheral devices and shielded cables between system components to reduce the possibility of causing interference to radios, televisions, and other electronic devices. This product was tested for EMC compliance under conditions that included the use of Apple peripheral devices. Responsible party (contact for FCC matters only): Apple Inc. One Apple Park Way, MS 911-AHW Cupertino, CA 95014 USA apple.com/contact • • • • Apple Inc. One Apple Park Way, MS 911-AHW Cupertino, CA 95014 USA apple.com/hk/contact ISED Canada Compliance This device complies with ISED Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d’ISDE Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas produire de brouillage, et (2) l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. EU Compliance English Apple Inc. hereby declares that this wireless device is in compliance with Directive 2014/53/EU. A copy of the EU Declaration of Conformity is available at apple.com/euro/ compliance. Apple’s EU representative is Apple Distribution International Ltd., Hollyhill Industrial Estate, Cork, Ireland. Français Apple Inc. déclare par la présente que ce dispositif sans fil est conforme à la Directive 2014/53/UE. Une copie de la déclaration de conformité UE est disponible à l’adresse apple.com/euro/compliance. Le représentant européen d’Apple est Apple Distribution International Ltd., Hollyhill Industrial Estate, Cork, Irlande. Deutsch Hiermit erklärt Apple Inc., dass sich dieses drahtlose Gerät in Übereinstimmung mit der Richtlinie 2014/53/EU befindet. Eine Kopie der EU-Konformitätserklärung ist unter apple.com/euro/ compliance verfügbar. Apple wird in der EU vertreten durch Apple Distribution International Ltd., Hollyhill Industrial Estate, Cork, Irland. Italiano Apple Inc. dichiara che questo dispositivo wireless è conforme alla Direttiva 2014/53/EU. Una copia della dichiarazione di conformità è disponibile all’indirizzo apple.com/euro/compliance. Apple è rappresentata nella UE da Apple Distribution International Ltd., Hollyhill Industrial Estate, Cork, Irlanda. Español Por medio de la presente, Apple Inc. declara que este dispositivo inalámbrico cumple con la Directiva 2014/53/UE. La declaración de conformidad de la UE puede consultarse en la página web apple.com/euro/compliance. La representación de Apple en la UE la ejerce Apple Distribution International Ltd., Hollyhill Industrial Estate, Cork, Irlanda. FrequencyMaximum Power 127.7 kHz< 42dBμA/m @ 10m 360.0 kHz< -15dBμA/m @ 10m Russia, Kazakhstan, Belarus, Armenia, Kyrgyzstan Соответствие требованиям: ТР ТС 020/2011 «Электромагнитная совместимость технических средств» ТР ЕАЭС 037/2016 «Об ограничении применения опасных веществ в изделиях электротехники и радиоэлектроники» Дата производства указана на упаковке. Türkiye Cumhuriyeti AEEE Yönetmeliğine Uygundur. Australia / New Zealand México Declaración de Conformidad La operación de este equipo está sujeta a las siguientes dos condiciones: 1) es posible que este equipo o dispositivo no cause interferencia perjudicial y 2) este equipo o dispositivo debe aceptar cualquier interferencia, incluyendo la que pueda causar su operación no deseada. MR Apple and the Environment At Apple, we recognize our responsibility to minimize the environmental impacts of our operations and products. For more information, go to apple.com/environment. Japan VCCI Class B Statement Singapore Malaysia CIDF15000007 Disposal and Recycling Information The symbol above indicates that this product and/or battery should not be disposed of with household waste. When you decide to dispose of this product and/or its battery, do so in accordance with local environmental laws and guidelines. For information about Apple’s recycling program, recycling collection points, restricted substa…

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Safety and Handling WARNING: Failure to follow these safety instructions could result in fire, electric shock, injury, or damage to the MagSafe Charger or other property. Read all the safety information below before using the MagSafe Charger. Liquid Exposure Keep the MagSafe Charger away from sources of liquid, such as drinks, oils, lotions, sinks, bathtubs, and shower stalls. Protect the MagSafe Charger from dampness, humidity, or wet weather, such as rain, snow, and fog. Power Provide power to the MagSafe Charger using Apple-branded compatible power adapters, or third-party power adapters that are compliant with applicable country regulations and international and regional safety standards, including the Standard for Safety of Information Technology Equipment (IEC 60950-1) and the Standard for Safety of Audio/Video, Information and Communication Technology Equipment (IEC 62368-1). Other adapters may not meet applicable safety standards, and using them could pose a risk of death or injury. Recommended Power Adapter Specifications • Frequency: 50 to 60 Hz, single phase • Line Voltage: 100 to 240 VAC • Output Voltage/Current: 9 VDC/2.2A • Minimum Power Output: 20W • Output Port: USB-C Don’t use the MagSafe Charger or the USB-C power adapter in wet locations, such as near a sink, bathtub, or shower stall, and don’t connect or disconnect them with wet hands. Disconnect the MagSafe Charger, its cable, and the power adapter if any of the following conditions exists: You want to clean the MagSafe Charger or the power adapter; the power cord or plug becomes frayed or otherwise damaged; the MagSafe Charger, its cable, or the power adapter is exposed to rain, excessive moisture, or liquid; or the MagSafe Charger, its cable, or the power adapter has been dropped, damaged, or you suspect that service or repair is required. When you use the USB-C power adapter, make sure the cable is fully inserted into the power adapter before you plug the adapter into a power outlet. When using the MagSafe Charger, remove metallic cases and avoid placing metallic foreign objects on it (for example, keys, coins, batteries, or jewelry), as they may interfere with charging or become warm enough to cause discomfort or injury if your skin comes into contact with them. Don’t place any item with an RFID tag (for example, a contactless credit card, passport, or access card) on the MagSafe Charger, because the RFID tag could be damaged. Prolonged Heat Exposure The MagSafe Charger and its cable comply with the applicable surface temperature standards and limits defined by the International Standard for Safety of Information Technology Equipment (IEC 60950-1) and the Standard for Safety of Audio/Video, Information and Communication Technology Equipment (IEC 62368-1). However, even within these limits, sustained contact with warm surfaces for long periods of time may cause discomfort or injury. Use common sense to avoid situations where your skin is in contact with the MagSafe Charger, the power adapter, or devices on the MagSafe Charger when it’s operating or connected to a power source for long periods of time. For example, don’t sleep on the MagSafe Charger, the power adapter, or devices on the MagSafe Charger, or place them under a blanket, pillow, or your body, when it’s connected to a power source. It’s important to keep the MagSafe Charger and the power adapter in a well-ventilated area when in use or charging. Take special care if you have a physical condition that affects your ability to detect heat against the body. Repairing Don’t attempt to repair the MagSafe Charger yourself. Disassembling the MagSafe Charger may damage it or cause injury to you. If the MagSafe Charger is damaged or malfunctions, discontinue use and contact Apple or an Apple Authorized Service Provider. Exposure to Radio Frequency Energy The radiated output power of the MagSafe Charger meets applicable radio frequency exposure limits. The MagSafe Charger should be operated with a minimum separation distance of 20 cm (8 inches) between the MagSafe Charger, or any devices on the MagSafe Charger, and a person’s body. Medical Device Interference The MagSafe Charger contains magnets and radios that emit electromagnetic fields. These electromagnetic fields may interfere with medical devices, such as pacemakers and defibrillators. Consult your physician and medical device manufacturer for information specific to your medical device and whether you need to maintain a safe distance of separation between your medical device and the MagSafe Charger. If you suspect the MagSafe Charger is interfering with your medical device, stop using the MagSafe Charger. System Specifications • Input Voltage/Current: 9 V 2.2A or 5V 3.0A • Operating Temperature: 0-35°C (32-95°F) Sécurité et manipulation AVERTISSEMENT : le non-respect de ces consignes de sécurité peut provoquer des flammes, occasionner des décharges électriques, entraîner des blessures ou endommager le chargeur MagSafe ou d’autres biens. Lisez toutes les consignes de sécurité avant d’utiliser le chargeur MagSafe. Exposition aux liquides Évitez de placer le chargeur MagSafe à proximité des sources de liquide, telles que les boissons, les huiles, les lotions, les éviers, les baignoires et les cabines de douche. Protégez le chargeur MagSafe de l’humidité et des intempéries (neige, pluie et brouillard, par exemple). Alimentation Alimentez le chargeur MagSafe à l’aide d’adaptateurs secteur compatibles de marque Apple ou d’adaptateurs secteur de tierce partie conformes à la réglementation du pays et les normes internationales et régionales en vigueur, notamment les normes pour la sécurité relative aux matériels de traitement de l’information (CEI 60950-1) et pour la sécurité relative aux équipements des technologies de l’audio/vidéo, de l’information et de la communication (IEC 62368-1). Il se peut que d’autres adaptateurs ne respectent pas les normes de sécurité en vigueur, et leur usage peut exposer à un risque …

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MagSafe Charger Apple Apple Inc., One Apple Park Way, Cupertino, CA 95014 USA © 2020 Apple Inc.All rights reserved.602-04117-A USB-C MagSafe Charger Chargeur MagSafe MagSafe-Ladegerät Alimentatore MagSafe MagSafe Charger Chargeur MagSafe MagSafe-Ladegerät Alimentatore MagSafe Cargador MagSafe MagSafe Carregador MagSafe Зарядное устройство MagSafe Cargador MagSafe MagSafe Carregador MagSafe Зарядное устройство MagSafe

Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Date: February 25, 2015 Subject: Authorized Individual To Whom It May Concern: Pursuant to the provisions of KDB 852134 D01 Authorized Policy Form 731, I, grantee contact, hereby authorize Abhishek Rala to act on behalf of Apple Inc. for all matters relating to equipment authorization, including signing Form 731, attestations, and confidentiality request letters. This authorized individual may also assign another party to act as an authorized agent. This authorization is valid until further written notice from the grantee contact. Marc Douat Apple Inc. 1 Infinite Loop Cupertino, CA 95014

 v1.0 Apple Inc. One Apple Park Way Cupertino, CA www.apple.com Date: September 2, 2020 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Rd. Columbia MD 21046 Attn: Equipment Authorization Branch Ref: FCC ID numbers Model(s) FCC ID A2140 BCGA2140 To whom it may concern: I, the undersigned, hereby authorize UL Verification Services Inc. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL Verification Services Inc. on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing UL Verification Services Inc. as our representative, we still recognize that we are responsible to: a) comply with the relevant provisions of the certification program; b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product  v1.0 Apple Inc. One Apple Park Way Cupertino, CA www.apple.com certification which the Certification Division may consider misleading or unauthorized; e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i) keep a record of all complaints made known to the us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the when requested; j) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely, ____________________ Abhishek Rala Apple Inc. Global Certification Manager [email protected]

 Apple Inc. One Apple Park Way Cupertino, CA v1.0 www.apple.com Date: September 2, 2020 Federal Communications Commission Office of Engineering and Technology Laboratory Division 7435 Oakland Mills Rd. Columbia MD 21046 Subject: Request for Confidentiality Ref: FCC ID numbers Model(s) FCC ID A2140 BCGA2140 To whom it may concern: Pursuant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 CFR §§ 0.457, 0.459), Apple Inc. hereby requests confidential treatment for documents filed with the Commission in connection with the application for equipment authorization referenced above. Permanent Confidentiality Apple Inc. requests that the Commission withholds the following documents from public viewing indefinitely: •Block Diagrams •Electrical Schematic Diagrams •Technical Descriptions These documents reveal detailed technical and design information that is protected by Apple Inc. as confidential and proprietary trade secrets. This information has been disclosed to those required to maintain its confidentiality and is not customarily disclosed to the public even after commercial release of a device. As a result, disclosure of this information by the Commission would harm Apple Inc. by giving competitors an unfair advantage even after commercial release of the device. Short Term Confidentiality In addition to the above mentioned documents, pursuant to Public Notice DA 04-1705 of the Commission’s policy, in order to comply with the marketing regulations in 47 CFR  Apple Inc. One Apple Park Way Cupertino, CA v1.0 www.apple.com §2.803 and the importation rules in 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, Apple Inc. requests that the Commission withholds the following documents from public viewing for one hundred eighty days after the date the grant of equipment authorization is issued: • External Photographs • Internal Photographs • Test Setup Photographs • User Manual These documents reveal technical and design information that has not been publicly disclosed in marketing materials and is protected by Apple Inc. as confidential and proprietary trade secrets. This information has been disclosed to those required to maintain its confidentiality and is not customarily disclosed publicly prior to the commercial release of the device. As a result, disclosure of this information by the Commission prior to commercial release would harm Apple Inc. by giving competitors an unfair market advantage. Apple Inc. believes the period of confidentiality requested is necessary to protect the information until the commercial release of a device. It is our understanding that measurement test reports and FCC ID label format cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, ____________________ Abhishek Rala Apple Inc. Global Certification Manager [email protected]

A2140 Front Apple Proprietary and Confidential A2140 Back Apple Proprietary and Confidential A2140 Covered Removed - Front Apple Proprietary and Confidential A2140 MLB - Front Apple Proprietary and Confidential A2140 MLB - Back Apple Proprietary and Confidential

A2140 - Regulatory Label and Location Apple Confidential The label is etched on the device and it is always visible without using any tool.

A2140 Front Apple Proprietary and Confidential A2140 Back Apple Proprietary and Confidential A2140 Covered Removed - Front Apple Proprietary and Confidential A2140 MLB - Front Apple Proprietary and Confidential A2140 MLB - Back Apple Proprietary and Confidential

NVLAP LAB CODE 200065-0 FCC Part 1 Subpart I FCC Part 2 Subpart J CERTIFICATION TEST REPORT FOR WIRELESS CHARGER MODEL NO: A2140 FCC ID: BCGA2140 REPORT NUMBER: 13181006-E4V3 ISSUE DATE: OCTOBER 07, 2020 Prepared for APPLE INC. 1 APPLE PARK WAY CUPERTINO, CA 95014, U.S.A. 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: 13181006-E4V3 DATE: OCTOBER 07, 2020 EUT: WIRELESS CHARGER MODEL NAME: A2140 Page 2 of 26 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. Revision History Rev. Issue Date Revisions Revised By V1 09/22/2020 Initial Issue Thu Chan V2 10/03/2020 Added Spectrum Analyzer on Page 16 Thu Chan V3 10/07/2020 Address TCB’s question on Page 16 Chin Pang REPORT NO: 13181006-E4V3 DATE: OCTOBER 07, 2020 EUT: WIRELESS CHARGER MODEL NAME: A2140 Page 3 of 26 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. TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS ................................................................................. 4 2. TEST METHODOLOGY ..................................................................................................... 5 3. FACILITIES AND ACCREDITATION ................................................................................. 5 4. KDB 680106 D01 SECTION 5b EQUIPMENT APPROVAL CONSIDERATIONS .............. 6 5. EQUIPMENT UNDER TEST ............................................................................................... 7 5.1. DESCRIPTION OF EUT .............................................................................................. 7 5.2. WORST-CASE CONFIGURATION AND MODE .......................................................... 7 5.3. DESCRIPTION OF TEST SETUP ................................................................................ 8 6. TEST AND MEASUREMENT EQUIPMENT ......................................................................16 7. DUTY CYCLE ....................................................................................................................17 8. MAXIMUM PERMISSIBLE RF EXPOSURE ......................................................................20 8.1. FCC LIMITS AND SUMMARY ....................................................................................20 9. SETUP PHOTO .................................................................................................................26 REPORT NO: 13181006-E4V3 DATE: OCTOBER 07, 2020 EUT: WIRELESS CHARGER MODEL NAME: A2140 Page 4 of 26 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. 1. ATTESTATION OF TEST RESULTS COMPANY NAME: APPLE INC. 1 APPLE PARK WAY CUPERTINO, CA 95014, U.S.A EUT DESCRIPTION: WIRELESS CHARGER MODEL NUMBER: A2140 SERIAL NUMBER: DLCD42QH06M2 DATE TESTED: SEPTEMBER 18 - 22, 2020 APPLICABLE STANDARDS STANDARD TEST RESULTS FCC PART 1 SUBPART I & PART 2 SUBPART J Complies UL Verification Services Inc. measured the RF Exposure of the above equipment in accordance with the requirements set forth in the above standards, using test results reported in the test report documents referenced below and/or documentation furnished by the applicant. All indications of Pass/Fail in this report are opinions expressed by UL Verification Services Inc. based on interpretations of these calculations. The results show that the equipment 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. Reviewed By: Prepared By: Chin Pang Tony Wang Senior engineer Test Engineer UL Verification Service Inc. UL Verification Services Inc. REPORT NO: 13181006-E4V3 DATE: OCTOBER 07, 2020 EUT: WIRELESS CHARGER MODEL NAME: A2140 Page 5 of 26 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. 2. TEST METHODOLOGY All calculations were made in accordance with FCC OET Bulletin 65 Edition 97-01. 3. 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 47658 Kato Rd. Chamber A (IC:2324B-1) Chamber D (IC:22541-1) Chamber I (IC: 2324A-5) Chamber B (IC:2324B-2) Chamber E (IC:22541-2) Chamber J (IC: 2324A-6) Chamber C (IC:2324B-3) Chamber F (IC:22541-3) Chamber K (IC: 2324A-1) Temperature B Room Chamber G (IC:22541-4) Chamber L (IC: 2324A-3) …

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SAR Simulation Report Model No: A2140 FCC ID: BCGA2140 Date of Simulation: 05/10/2020- 08/10/2020 Location: Apple Inc., Cupertino, CA, USA Apple Proprietary and Confidential 2 Table of Contents 1 Introduction ................................................................................................................... 3 2 Wireless Power Transfer System ..................................................................................... 3 3 SAR Simulations Methodology ....................................................................................... 4 4 H-field Measurements .................................................................................................... 5 5 H-field Simulations ......................................................................................................... 6 6 SAR Simulations ............................................................................................................ 9 7 Summary ....................................................................................................................... 19 8 Annex A: Specific Information for SAR Computational Modelling ................................ 19 Apple Proprietary and Confidential 3 1 Introduction The magnetic charger described in this document inductively charge other wireless charging devices. The charging function operates at 127.7kHz (Qi) and 360.0kHz. The charger supports charging at 5W, 7.5W and 15W power and NFC tag operation. The charger doesn’t have any internal battery. 2 Wireless Power Transfer System The wireless power transfer system consists of a transmitting coil with 11 turns and measures 7.5 uH nominally in free air. The receiver coil consists of 13 turns and measures 9.06 uH nominally in free air. Both coils are wound spirally. Below are key parameters of the design that will be helpful in determining worst-case use for exposure: Item Description Max Power Delivered 15 W (delivered at rectifier) Full Charge Time 3 hours 10 minutes (from empty) Operating Frequency ƒ 0 = 360 kHz Communications/Modulation Method ASK for Phone to Charger (load modulation) FSK for Charger to Phone Object Detection Mode Low Power Pulse Below is the charging profile/sequence. Maximum power transfer of 15 W takes place only when the battery is near empty. Battery State of Charge Charge Duration in min Power Delivered to rectifier in Watts 0-12% 11 15 W 12-50% 30 Changes between 2.5 and 13 W 50-100% 120 Changes between 2 and 6 W Apple Proprietary and Confidential 4 3 SAR Simulations Methodology The following steps are taken to show the validity of the model used for SAR Simulations: Geometry Import from MCAD Material Definition and Assignment Simulation: Meshing & Solving Two -Port [Z] Extraction Two -Port [Z] from EM Simulation WPT Circuitry Circuit Simulation Charger/Phone Coils’ Current Waveforms Simulated H-field Coils’ Currents from Circuit Simulation EM Simulation Step 1: EM Simulation Step 2: Circuit Simulation Step 3: Field Calculation Step 4: Validate Simulation Model Perform H-field Measurement using ELT-400 probe H-field: Simulation vs Measurement Use Verified EM Simulation Model for SAR Simulations Apple Proprietary and Confidential 5 1) EM Simulation: a. Import a CAD model that represents the actual product in the simulation tool. b. Define material properties inside the product based on vendor’s inputs. c. Extract two-port network impedance matrix ([Z]) from the simulation. 2) Circuit Simulation: a. Include the impedance matrix in the wireless power transfer (WPT) circuit model. b. Run circuit simulation and extract coils’ current waveforms. 3) Field, H-field, and SAR Calculations: a. Use the current waveforms to drive the EM simulation model. b. Calculate H-field from simulation. c. Compare simulated H-field with measured H-field d. Once a correlation is established, this model will be used for SAR simulations. 4 H-field Measurements A Narda ELT-400 probe is used to measure the H-field above the DUT. Below is a picture of the probe, an x-ray image of the probe, and the measurement setup. The probe has three orthogonal loops with radius of 10 mm. These loops are used to measure H-field in different directions. The distance from the DUT to the probe is 0 mm. However, the loops are covered with a plastic shell of 6 mm thickness. Therefore, the distance from the center of the probe to the DUT is 16 mm. These f…

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