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    Electronic device antennas with harmonic resonances
    3.
    发明授权
    Electronic device antennas with harmonic resonances 有权

    公开(公告)号：US10153554B2

    公开(公告)日：2018-12-11

    申请号：US15253374

    申请日：2016-08-31

    Applicant: Apple Inc.

    Inventor： Mario Martinis ,  Carlo Di Nallo ,  Jayesh Nath ,  Yi Jiang ,  Jiangfeng Wu ,  Lijun Zhang ,  Siwen Yong ,  Mattia Pascolini ,  Zheyu Wang ,  Eduardo Jorge Da Costa Bras Lima

    IPC: H01Q9/04 ,  H01Q1/48 ,  H01Q1/22 ,  H01Q1/50

    Abstract: An electronic device may have a housing and other structures that form an antenna ground for an antenna. An antenna resonating element arm for the antenna may extend along the periphery of the housing. The resonating element arm may have opposing first and second ends. A return path may couple the resonating element arm to the antenna ground at the first end. An antenna feed may be coupled between the resonating element arm and the antenna ground in parallel with the return path. Electrical components such as first and second capacitors may be coupled between the antenna resonating element arm and the antenna ground. A first of the capacitors may be coupled between the antenna resonating element arm and the antenna ground at a location between the first and second ends. A second of the capacitors may be coupled between the second end and the antenna ground.

    Portable electronic device with antenna
    4.
    发明授权
    Portable electronic device with antenna 有权

    公开(公告)号：US09793599B2

    公开(公告)日：2017-10-17

    申请号：US14640902

    申请日：2015-03-06

    Applicant: Apple Inc.

    Inventor： Carlo Di Nallo ,  Erik G. de Jong ,  Jayesh Nath ,  Mattia Pascolini ,  Tang Y. Tan ,  Yiren Wang ,  Zheyu Wang

    IPC: H01Q1/24 ,  H01Q9/42 ,  H01Q5/321 ,  H01Q5/328 ,  H01Q5/335

    CPC classification number: H01Q1/243 ,  H01Q5/321 ,  H01Q5/328 ,  H01Q5/335 ,  H01Q9/42

    Abstract: An electronic device may have components mounted in a housing. The device may include wireless transceiver circuitry and antenna structures. A display may be mounted in the housing. The display may have a cover layer having an inner surface with a recess. The recess may run along a peripheral edge of the cover layer. An antenna structure such as an inverted-F antenna resonating element may be formed from a metal trace on a dielectric antenna carrier. The resonating element may be mounted in the recess without adhesive. Conductive vias may pass through the dielectric carrier. Metal members with dimples may be soldered to a flexible printed circuit and may be used to ground metal traces on the carrier and the flexible printed circuit to the housing when the carrier is attached to the housing with fasteners.

    Dynamically adjustable antennas for wearable devices
    5.
    发明授权
    Dynamically adjustable antennas for wearable devices 有权

    公开(公告)号：US10484112B2

    公开(公告)日：2019-11-19

    申请号：US15442463

    申请日：2017-02-24

    Applicant: Apple Inc.

    Inventor： Mattia Pascolini ,  Eduardo Jorge da Costa Bras Lima ,  Carlo Di Nallo ,  Andrea Ruaro ,  Mario Martinis ,  Zheyu Wang ,  Jayesh Nath

    IPC: H04B17/318 ,  H01Q1/27 ,  H04B1/3827

    Abstract: An electronic device such as a wristwatch may include a housing with a dielectric rear wall. Wireless circuitry in the device may include an antenna formed on or over the rear wall. Matching circuitry may match the impedance of the antenna to the rest of the wireless circuitry. Processing circuitry may gather receive signal strength information and/or phase and magnitude information from radio-frequency signals received through the rear wall. The processing circuitry may track the position of the device and accumulate user statistics over time. The processing circuitry may determine whether changes in loading of the antenna through the dielectric rear housing wall have occurred based on the receive signal strength information, user statistics, and/or phase and magnitude information. If a change is detected, the processing circuitry may adjust the matching circuitry to mitigate any potential antenna detuning as a result of the change.

    Electronic device having multiband antenna with embedded filter
    7.
    发明授权
    Electronic device having multiband antenna with embedded filter 有权

    公开(公告)号：US10290941B2

    公开(公告)日：2019-05-14

    申请号：US15008130

    申请日：2016-01-27

    Applicant: Apple Inc.

    Inventor： Erdinc Irci ,  Carlo Di Nallo ,  Jayesh Nath ,  Zheyu Wang ,  Eduardo Da Costa Bras Lima ,  Hongfei Hu ,  Mario Martinis ,  Mattia Pascolini

    IPC: H01Q1/24 ,  H01Q5/10 ,  H01Q9/42 ,  H01Q5/321

    Abstract: An electronic device may have a display in a housing with a metal wall. An antenna may have an antenna ground formed from the wall and an antenna resonating element. Transceiver circuitry may be coupled to an antenna feed that extends between the antenna resonating element and the antenna ground. A return path may extend between the antenna resonating element and the antenna ground in parallel with the feed. The antenna resonating element may have segments that are coupled by a frequency dependent filter. At a first frequency, the filter may have a low impedance so that the antenna resonating element has a first effectively length. At a second frequency that is greater than the first frequency, the filter may have a high impedance so that the antenna resonating element has a second effective length that is shorter than the first effective length.

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