Electronic device antennas including conductive display structures

    公开(公告)号:US11303015B2

    公开(公告)日:2022-04-12

    申请号:US16712196

    申请日:2019-12-12

    Applicant: Apple Inc.

    Abstract: An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include multiple antennas and transceiver circuitry. An antenna in the electronic device may have an inverted-F antenna resonating element formed from portions of a peripheral conductive electronic device housing structure and may have an antenna ground that is separated from the antenna resonating element by a gap. The antenna ground for the antenna may include a conductive frame for the display. The conductive frame may have a first portion that is separated from the antenna resonating element arm by a first distance and a second portion that is separated from the antenna resonating element arm by a second distance that is less than the first distance. The second portion may be configured to form a distributed impedance matching capacitance with the antenna resonating element arm.

    ADAPTIVE ANTENNA TUNING SYSTEM
    13.
    发明申请

    公开(公告)号:US20210218430A1

    公开(公告)日:2021-07-15

    申请号:US16898069

    申请日:2020-06-10

    Applicant: Apple Inc.

    Abstract: A radio frequency device has a multifunctional tuner that stores measurements of reflection coefficient parameter in a register. The radio frequency device also has a transceiver that has a transmitter. The transceiver may detect a transmitter signal from the transmitter to an antenna in an initial tuning state and then determine whether the transmitter signal is stable. In response to the transmitter signal being stable, the transceiver may measuring the reflection coefficient parameters at the multifunctional tuner. Furthermore, the radio frequency device has a baseband controller that has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to determine an antenna impedance based on the reflection coefficient parameters, and in response to determining that the antenna impedance is greater than or less than a threshold antenna impedance, iteratively tune the antenna using the multifunctional tuner.

    Tunable antenna with slot-based parasitic element

    公开(公告)号:US10355339B2

    公开(公告)日:2019-07-16

    申请号:US15085095

    申请日:2016-03-30

    Applicant: Apple Inc.

    Abstract: Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form a dual arm inverted-F antenna. The antenna may have a resonating element formed from portions of a peripheral conductive electronic device housing member and may have an antenna ground that is separated from the antenna resonating element by a gap. A short circuit path may bridge the gap. An antenna feed may be coupled across the gap in parallel with the short circuit path. Low band tuning may be provided using an adjustable inductor that bridges the gap. The antenna may have a slot-based parasitic antenna resonating element with a slot formed between portions of the peripheral conductive electronic device housing member and the antenna ground. An adjustable capacitor may bridge the slot to provide high band tuning.

    Electronic device having isolated antenna structures

    公开(公告)号:US10312571B2

    公开(公告)日:2019-06-04

    申请号:US15700636

    申请日:2017-09-11

    Applicant: Apple Inc.

    Abstract: An electronic device may be provided with wireless circuitry. The wireless circuitry may include multiple antennas and transceiver circuitry. The antenna structures at a first end of the electronic device may include an inverted-F antenna resonating element for a first antenna formed from portions of a peripheral conductive electronic device housing structure and an antenna ground that is separated from the antenna resonating element by a gap. The inverted-F antenna resonating element arm may have a first end adjacent a first dielectric-filled gap and an opposing second end adjacent a second dielectric-filled gap. A second antenna may include an additional antenna resonating element arm and the antenna ground. A second end of the additional antenna resonating element arm may be interposed between the first dielectric-filled gap and a first end of the additional antenna resonating element arm. This type of arrangement may ensure the first and second antennas are isolated.

    Electronic Device Antennas Having Distributed Capacitances

    公开(公告)号:US20190081393A1

    公开(公告)日:2019-03-14

    申请号:US15701246

    申请日:2017-09-11

    Applicant: Apple Inc.

    Abstract: An electronic device may be provided with wireless circuitry. The wireless circuitry may include multiple antennas and transceiver circuitry. An antenna may have an antenna resonating element formed from portions of a peripheral conductive electronic device housing structure and may have an antenna ground that is separated from the antenna resonating element by a gap. The antenna ground for the antenna may include a first conductive structure that is separated from the antenna resonating element by a first distance and a second conductive structure that is electrically connected to the first conductive structure and separated from the antenna resonating element by a second distance that is less than the first distance. A distributed impedance matching capacitor for the antenna may be formed from the second conductive structure and the antenna resonating element arm. The second conductive structure may be a conductive frame for an electronic component such as a sensor.

    Electronic devices with indirectly-fed adjustable slot elements

    公开(公告)号:US10158384B1

    公开(公告)日:2018-12-18

    申请号:US15699869

    申请日:2017-09-08

    Applicant: Apple Inc.

    Abstract: An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include multiple antennas and transceiver circuitry. An antenna in the electronic device may have an inverted-F antenna resonating element formed from portions of a peripheral conductive electronic device housing structure and may have an antenna ground that is separated from the antenna resonating element by a gap. The antenna may also include an indirectly-fed antenna resonating element that is indirectly fed by a harmonic mode of the inverted-F antenna resonating element via near field electromagnetic coupling. The indirectly-fed antenna resonating element may be a slot. The antenna ground may define at least three edges of the slot and the slot may be aligned with a dielectric-filled gap in the peripheral conductive housing structures. An adjustable circuit may be coupled across the slot to tune the indirectly-fed antenna resonating element.

    Antenna system having two antennas and three ports
    19.
    发明授权
    Antenna system having two antennas and three ports 有权
    天线系统有两个天线和三个端口

    公开(公告)号:US09559433B2

    公开(公告)日:2017-01-31

    申请号:US13846481

    申请日:2013-03-18

    Applicant: Apple Inc.

    Abstract: Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form a dual arm inverted-F antenna and a monopole antenna sharing a common antenna ground. The antenna structures may have three ports. A first antenna port may be coupled to an inverted-F antenna resonating element at a first location and a second antenna port may be coupled to the inverted-F antenna resonating element at a second location. A third antenna port may be coupled to the monopole antenna. Tunable circuitry can be used to tune the antenna structures. An adjustable capacitor may be coupled to the first port to tune the inverted-F antenna. An additional adjustable capacitor may be coupled to the third port to tune the monopole antenna. Transceiver circuitry for supporting wireless local area network communications, satellite navigation system communications, and cellular communications may be coupled to the first, second, and third antenna ports.

    Abstract translation: 电子设备可以包括射频收发器电路和天线结构。 天线结构可以形成双臂倒F天线和共享共同天线接地的单极天线。 天线结构可以具有三个端口。 第一天线端口可以在第一位置处耦合到倒F天线谐振元件,并且第二天线端口可以在第二位置处耦合到倒F天线谐振元件。 第三天线端口可以耦合到单极天线。 可调电路可用于调谐天线结构。 可调电容器可以耦合到第一端口以调谐倒F天线。 附加可调电容器可以耦合到第三端口以调谐单极天线。 支持无线局域网通信,卫星导航系统通信和蜂窝通信的收发器电路可以耦合到第一,第二和第三天线端口。

    Electronic Device With Passive Antenna Retuning Circuitry
    20.
    发明申请
    Electronic Device With Passive Antenna Retuning Circuitry 有权
    电子设备与被动天线重调电路

    公开(公告)号:US20160093955A1

    公开(公告)日:2016-03-31

    申请号:US14500819

    申请日:2014-09-29

    Applicant: Apple Inc.

    CPC classification number: H01Q9/0442 H01Q1/243 H01Q5/328 H01Q5/335 H01Q9/42

    Abstract: An electronic device may have wireless circuitry with antennas. An antenna may have an inverted-F antenna resonating element, an antenna ground, and other resonating element structures. A tip of the antenna resonating element and the antenna ground may be separated by a peripheral housing gap filled with plastic. The antenna may be sensitive to capacitance changes induced by the presence of a user's hand overlapping the gap or other portions of the antenna. A hand capacitance sensing electrode may be mounted in the plastic of the gap or elsewhere in the vicinity of the antenna. A transmission line may couple the hand capacitance sensing electrode to the antenna to retune the antenna in the event that the user's hand overlaps the antenna.

    Abstract translation: 电子设备可以具有带天线的无线电路。 天线可以具有倒F天线谐振元件,天线接地和其它谐振元件结构。 天线谐振元件的尖端和天线接地可以由填充有塑料的外围壳体间隙分开。 天线可能对由与天线的间隙或其他部分重叠的用户手的存在引起的电容变化敏感。 手电容感测电极可以安装在间隙的塑料或天线附近的别处。 在用户的手与天线重叠的情况下,传输线可以将手电容感测电极耦合到天线以重新调谐天线。

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