Electronic Devices Having Tunable Antenna Grounding Rings

    公开(公告)号:US20210328338A1

    公开(公告)日:2021-10-21

    申请号:US17360595

    申请日:2021-06-28

    Applicant: Apple Inc.

    Abstract: An electronic device may include a rear housing wall, antenna resonating element, sensor board, and grounding ring. The grounding ring may couple antenna currents from the resonating element onto a ground trace on the sensor board. A switchable inductor may couple the grounding ring to the ground traces. The switchable inductor may be used to tune a frequency response of the antenna in a cellular low band. Additionally or alternatively, an inductor may couple the resonating element to the ground traces or other portions of an antenna ground. This inductor may serve to extend the effective length of the antenna resonating element in the cellular low band to compensate for dielectric loading by the rear housing wall, such as in examples where the rear housing wall is formed from zirconia.

    Antennas for Electronic Device With Heat Spreader
    3.
    发明申请
    Antennas for Electronic Device With Heat Spreader 有权
    带散热器的电子设备天线

    公开(公告)号:US20170062906A1

    公开(公告)日:2017-03-02

    申请号:US14839619

    申请日:2015-08-28

    Applicant: Apple Inc.

    Abstract: An electronic device may have wireless circuitry with antennas. The electronic device may have a dielectric housing. A printed circuit board with electrical components may be mounted in the dielectric housing. Heat spreader structures may be used to dissipate heat from the electrical components. The heat spreader structures be configured to form antenna cavities. The antennas in the electronic device may be formed from the antenna cavities and may have antenna resonating elements formed on the printed circuit. An electrical component such as a light-emitting diode may be mounted in one of the antenna cavities. Each antenna element may be an inverted-F antenna resonating element with short and long arms. The short arm of each antenna resonating element may be formed from edge plated metal traces on an edge of the printed circuit.

    Abstract translation: 电子设备可以具有带天线的无线电路。 电子设备可以具有绝缘外壳。 具有电气部件的印刷电路板可以安装在绝缘外壳中。 散热器结构可用于从电气部件散发热量。 散热器结构被配置成形成天线腔。 电子设备中的天线可以由天线腔形成,并且可以具有形成在印刷电路上的天线谐振元件。 诸如发光二极管的电气部件可以安装在天线腔中的一个中。 每个天线元件可以是具有短臂和长臂的倒F天线谐振元件。 每个天线谐振元件的短臂可以由印刷电路边缘上的边缘电镀金属迹线形成。

    Electronic device wide band antennas
    6.
    发明授权

    公开(公告)号:US10673127B2

    公开(公告)日:2020-06-02

    申请号:US16584106

    申请日:2019-09-26

    Applicant: Apple Inc.

    Abstract: An electronic device such as a wristwatch may have a housing with metal sidewalls and a display having conductive display structures. The display structures may be separated from the sidewalls by a slot for an antenna that runs around the display module. A conductive interconnect may be coupled between the sidewalls and the display structures. A feed and tuning element may be coupled between the display structures and the sidewalls. A first length of the slot from the interconnect to the tuning element may radiate in a satellite band and a cellular band. A second length of the slot from the interconnect to the feed may radiate in a 2.4 GHz band. Harmonics of the second length may radiate in bands at and above 5.0 GHz. If desired clip and blade structures may form conductive paths for coupling antenna elements.

    Electronic device slot antennas
    7.
    发明授权

    公开(公告)号:US10658749B2

    公开(公告)日:2020-05-19

    申请号:US15698481

    申请日:2017-09-07

    Applicant: Apple Inc.

    Abstract: An electronic device such as a wristwatch may have a housing with metal sidewalls and a display having conductive display structures. Printed circuits having corresponding ground traces may be coupled to the display for conveying data to and/or from the display. The conductive display structures may be separated from the metal sidewalls by a gap. A conductive interconnect may be coupled to the metal sidewalls and may extend across the gap to the conductive display structures. The conductive interconnect may be coupled to the ground traces on the printed circuits and/or may be shorted or capacitively coupled to the conductive display structures. When configured in this way, the metal sidewalls, the conductive display structures, and the conductive interconnect may define the edges of a slot antenna resonating element for a slot antenna.

    Dynamically Adjustable Antennas for Wearable Devices

    公开(公告)号:US20180248634A1

    公开(公告)日:2018-08-30

    申请号:US15442463

    申请日:2017-02-24

    Applicant: Apple Inc.

    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 Devices with High and Low Linearity Receivers

    公开(公告)号:US20240147365A1

    公开(公告)日:2024-05-02

    申请号:US18474921

    申请日:2023-09-26

    Applicant: Apple Inc.

    CPC classification number: H04W52/0229 H04W52/0245

    Abstract: Electronic devices may be provided with wireless circuitry having an antenna, a primary receiver, and a secondary receiver. The primary receiver may be coupled to the antenna over a first signal path having a low noise amplifier. An input of the primary receiver may be coupled to the first signal path and an input of the secondary receiver may be coupled to a node on the first signal path over a second signal path. The primary receiver may consume more power and exhibit more linearity than the secondary receiver. The secondary receiver may wake while the primary receiver is asleep and may wake the primary receiver when paging signals are received. If desired, the wireless circuitry may be switched between a single-receiver mode and a receiver diversity mode based on wireless performance metric data gathered by the primary receiver and/or the secondary receiver.

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