Electronic Device Antennas Having Split Return Paths

    公开(公告)号:US20190081396A1

    公开(公告)日:2019-03-14

    申请号:US15701239

    申请日:2017-09-11

    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. A split return path may bridge the gap. The split return path may be coupled between a first point on the inverted-F antenna resonating element arm and second and third points on the antenna ground. The split return path may include a first inductor coupled between the first and second points and a second inductor coupled between the first and third points. The first and second inductors may be adjustable.

    Electronic device with passive antenna retuning circuitry
    92.
    发明授权
    Electronic device with passive antenna retuning circuitry 有权
    具有无源天线重调电路的电子设备

    公开(公告)号:US09537219B2

    公开(公告)日:2017-01-03

    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。

    Methods for manufacturing an antenna tuning element in an electronic device
    94.
    发明授权
    Methods for manufacturing an antenna tuning element in an electronic device 有权
    电子设备中的天线调谐元件的制造方法

    公开(公告)号:US09379427B2

    公开(公告)日:2016-06-28

    申请号:US13871996

    申请日:2013-04-26

    Applicant: Apple Inc.

    CPC classification number: H01Q1/243 H01Q9/0442 H01Q9/42 H04B1/18

    Abstract: Custom antenna structures may be used to improve antenna performance and to compensate for manufacturing variations in electronic device antennas. An electronic device antenna may include an antenna tuning element and conductive structures formed from portions of a peripheral conductive housing member and other conductive antenna structures. The antenna tuning element may be connected across a gap in the peripheral conductive housing member. The custom antenna structures may be used to couple the antenna tuning element to a fixed custom location on the peripheral conductive housing member to help satisfy design criteria and to compensate for manufacturing variations in the conductive antenna structures that could potentially lead to undesired variations in antenna performance. Custom antenna structures may include springs and custom paths on dielectric supports.

    Abstract translation: 可以使用定制天线结构来改善天线性能并补偿电子设备天线中的制造变化。 电子设备天线可以包括天线调谐元件和由外围导电外壳构件和其它导电天线结构的部分形成的导电结构。 天线调谐元件可以跨越外围导电外壳构件中的间隙连接。 定制天线结构可用于将天线调谐元件耦合到外围导电外壳构件上的固定定制位置,以帮助满足设计标准并补偿导电天线结构中可能导致天线性能不期望变化的制造变化 。 定制天线结构可以包括弹簧和电介质支撑件上的定制路径。

    Antenna System With Tuning From Coupled Antenna
    95.
    发明申请
    Antenna System With Tuning From Coupled Antenna 有权
    天线系统与耦合天线调谐

    公开(公告)号:US20140292598A1

    公开(公告)日:2014-10-02

    申请号:US13851471

    申请日:2013-03-27

    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 an additional antenna such as 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 additional antenna. An adjustable component may be coupled to the first antenna port to tune the inverted-F antenna. The inverted-F antenna may be near-field coupled to the additional antenna so that the inverted-F antenna may serve as a tunable parasitic antenna resonating element that tunes the additional antenna.

    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天线和附加天线,例如共享公共天线地的单极天线。 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附加天线。 可调组件可以耦合到第一天线端口以调谐倒F天线。 反F天线可以近场耦合到附加天线,使得倒F天线可以用作调谐附加天线的可调谐寄生天线谐振元件。

    Methods for Validating Radio-Frequency Test Stations
    96.
    发明申请
    Methods for Validating Radio-Frequency Test Stations 有权
    验证射频测试站的方法

    公开(公告)号:US20140167794A1

    公开(公告)日:2014-06-19

    申请号:US13715648

    申请日:2012-12-14

    Applicant: APPLE INC.

    CPC classification number: G01R35/007 G01R31/2822 G01R31/2879 G01R31/3191

    Abstract: A manufacturing system for assembling wireless electronic devices is provided. The manufacturing system may include test stations for testing the radio-frequency performance of components that are to be assembled within the electronic devices. A reference test station may be calibrated using calibration coupons having known radio-frequency characteristics. The calibration coupons may include transmission line structures. The reference test station may measure verification standards to establish baseline measurement data. The verification standards may include circuitry having electrical components with given impedance values. Many verification coupons may be measured to enable testing for a wide range of impedance values. Test stations in the manufacturing system may subsequently measure the verification standards to generate test measurement data. The test measurement data may be compared to the baseline measurement data to characterize the performance of the test stations to ensure consistent test measurements across the test stations.

    Abstract translation: 提供了一种用于组装无线电子设备的制造系统。 制造系统可以包括用于测试要在电子设备内组装的组件的射频性能的测试站。 可以使用具有已知射频特性的校准试样来校准参考测试台。 校准试样可以包括传输线结构。 参考测试站可以测量验证标准以建立基线测量数据。 验证标准可以包括具有给定阻抗值的电气部件的电路。 可以测量许多验证券,以测试宽范围的阻抗值。 制造系统中的测试台随后可以测量验证标准以产生测试测量数据。 可以将测试测量数据与基线测量数据进行比较,以表征测试站的性能,以确保跨越测试站的一致的测试测量。

    Methods and Apparatus for Performing Coexistence Testing for Multi-Antenna Electronic Devices
    97.
    发明申请
    Methods and Apparatus for Performing Coexistence Testing for Multi-Antenna Electronic Devices 有权
    用于多天线电子设备共存测试的方法和装置

    公开(公告)号:US20140087668A1

    公开(公告)日:2014-03-27

    申请号:US13629414

    申请日:2012-09-27

    Applicant: APPLE INC

    CPC classification number: H04W24/08 H04B17/318 H04B17/345 H04W24/06

    Abstract: Radio frequency test systems for characterizing antenna performance in various radio coexistence scenarios are provided. In one suitable arrangement, a test system may be used to perform passive radio coexistence characterization. During passive radio coexistence characterization, at least one signal generator may be used to feed aggressor signals directly to antennas within an electronic device under test (DUT). The aggressor signals may generate undesired interference signals in a victim frequency band, which can then be received and analyzed using a spectrum analyzer. During active radio coexistence characterization, at least one radio communications emulator may be used to communicate with a DUT via a first test antenna. While the DUT is communicating with the at least one radio communications emulator, test signals may also be conveyed between DUT 10 and a second test antenna. Test signals conveyed through the second test antenna may be used in obtaining signal interference level measurements.

    Abstract translation: 提供了用于在各种无线电共存场景中表征天线性能的射频测试系统。 在一种合适的布置中,可以使用测试系统来执行被动无线电共存表征。 在被动无线电共存表征期间,可以使用至少一个信号发生器将攻击者信号直接馈送到被测电子设备(DUT)内的天线。 攻击者信号可能在受害频段中产生不期望的干扰信号,然后使用频谱分析仪接收和分析。 在有源无线电共存表征期间,可以使用至少一个无线电通信仿真器来经由第一测试天线与DUT进行通信。 当DUT正在与至少一个无线电通信仿真器进行通信时,也可以在DUT 10和第二测试天线之间传送测试信号。 通过第二测试天线传送的测试信号可用于获得信号干扰电平测量。

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