Electromagnetic band gap structures

    公开(公告)号:US11561752B2

    公开(公告)日:2023-01-24

    申请号:US17480089

    申请日:2021-09-20

    Applicant: Apple Inc.

    Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.

    Electromagnetic band gap structures

    公开(公告)号:US11262966B2

    公开(公告)日:2022-03-01

    申请号:US16585238

    申请日:2019-09-27

    Applicant: Apple inc.

    Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.

    Electric shielding structures
    15.
    发明授权

    公开(公告)号:US10855118B2

    公开(公告)日:2020-12-01

    申请号:US16145503

    申请日:2018-09-28

    Applicant: Apple Inc.

    Abstract: Wireless power transmitting devices according to embodiments of the present technology may include a contact surface configured to support one or more wireless power receiving devices. The wireless power transmitting devices may include a plurality of coils. The wireless power transmitting devices may also include a shield positioned between the plurality of coils and the contact surface. The shield may include one or more shield members, each shield member axially aligned with a separate coil of the plurality of coils, and may include a multilayer structure exhibiting various conductivities.

    Magnetic field containment inductors

    公开(公告)号:US10256036B2

    公开(公告)日:2019-04-09

    申请号:US15405027

    申请日:2017-01-12

    Applicant: Apple Inc.

    Abstract: A system includes a circuit board, an inductor including windings mounted on the circuit board, and a plurality of magnetic field containment devices. Each magnetic field containment device includes an independent electrical circuit that is not directly electrically connected via a conductor to any other magnetic field containment device. Each magnetic field containment device also includes a material of a certain relative permeability. Each magnetic field containment device at least partially surrounds the inductor and, in operation, at least partially contains a magnetic B-Field generated by electrical current in the windings of the inductor. The plurality of magnetic field containment devices, in operation, enables a certain saturation current in the inductor.

    ELECTRIC SHIELDING STRUCTURES
    19.
    发明申请

    公开(公告)号:US20210110969A1

    公开(公告)日:2021-04-15

    申请号:US17102903

    申请日:2020-11-24

    Applicant: Apple Inc.

    Abstract: Wireless power transmitting devices according to embodiments of the present technology may include a contact surface configured to support one or more wireless power receiving devices. The wireless power transmitting devices may include a plurality of coils. The wireless power transmitting devices may also include a shield positioned between the plurality of coils and the contact surface. The shield may include one or more shield members, each shield member axially aligned with a separate coil of the plurality of coils, and may include a multilayer structure exhibiting various conductivities.

    ELECTROMAGNETIC BANDGAP STRUCTURES
    20.
    发明申请

    公开(公告)号:US20210096804A1

    公开(公告)日:2021-04-01

    申请号:US16585238

    申请日:2019-09-27

    Applicant: Apple Inc.

    Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.

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