Methods and Apparatus for Testing Electronic Devices with Antenna Arrays
    161.
    发明申请
    Methods and Apparatus for Testing Electronic Devices with Antenna Arrays 有权
    用天线阵列测试电子设备的方法和装置

    公开(公告)号:US20140370821A1

    公开(公告)日:2014-12-18

    申请号:US13916090

    申请日:2013-06-12

    Applicant: Apple Inc.

    CPC classification number: H04W24/00 H04W24/06

    Abstract: A wireless electronic device may be provided with antenna structures. The antenna structures may be formed from an antenna ground and an array of antenna resonating elements formed along its periphery. The antenna resonating elements may be formed from metal traces on a dielectric support structure that surrounds the antenna ground. The electronic device may be tested using a test system for detecting the presence of manufacturing/assembly defects. The test system may include an RF tester and a test fixture. The device under test (DUT) may be attached to the test fixture during testing. Multiple test probes arranged along the periphery of the DUT may be used to transmit and receive RF test signals for gathering scattering parameter measurements on the device under test. The scattering parameter measurements may then be compared to predetermined threshold values to determine whether the DUT contains any defects.

    Abstract translation: 无线电子设备可以设置有天线结构。 天线结构可以由天线接地和沿其周边形成的天线谐振元件的阵列形成。 天线谐振元件可以由围绕天线接地的电介质支撑结构上的金属迹线形成。 可以使用用于检测制造/组装缺陷的存在的测试系统来测试电子设备。 测试系统可以包括RF测试器和测试夹具。 被测设备(DUT)可以在测试期间连接到测试夹具。 沿着DUT周边布置的多个测试探头可用于发送和接收RF测试信号,用于在被测器件上采集散射参数测量。 然后可以将散射参数测量与预定阈值进行比较,以确定DUT是否包含任何缺陷。

    Antenna System With Return Path Tuning And Loop Element
    162.
    发明申请
    Antenna System With Return Path Tuning And Loop Element 有权
    天线系统具有返回路径调谐和环路元件

    公开(公告)号:US20140306857A1

    公开(公告)日:2014-10-16

    申请号:US13860396

    申请日:2013-04-10

    Applicant: Apple Inc.

    CPC classification number: H01Q1/243 H01Q7/00 H01Q9/0442

    Abstract: Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include a dual arm inverted-F antenna resonating element and an antenna ground. An antenna feed may be coupled between the inverted-F antenna resonating element and the antenna ground. An adjustable component such as an adjustable inductor may be coupled between the inverted-F antenna resonating element and the antenna ground in parallel with the antenna feed. The adjustable component may be operable in multiple states such as an open circuit state, a short circuit state, and a state in which the adjustable component exhibits a non-zero inductance. Antenna bandwidth can be broadened by coupling a loop antenna resonating element across the antenna feed. A portion of the antenna ground may overlap the loop antenna resonating element to further enhance antenna bandwidth.

    Abstract translation: 电子设备可以包括射频收发器电路和天线结构。 天线结构可以包括双臂倒F天线谐振元件和天线接地。 天线馈送可以耦合在倒F天线谐振元件和天线接地之间。 诸如可调节电感器的可调节部件可以与天线馈送并联连接在倒F天线谐振元件和天线接地之间。 可调组件可以在诸如开路状态,短路状态和可调部件呈现非零电感的状态的多种状态下工作。 通过将环形天线谐振元件耦合到天线馈电上,可以拓宽天线带宽。 天线接地的一部分可能与环形天线谐振元件重叠,以进一步增强天线带宽。

    Antenna System Having Two Antennas and Three Ports
    163.
    发明申请
    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:US20140266923A1

    公开(公告)日:2014-09-18

    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。 用于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。

    Methods for Validating Radio-Frequency Test Systems Using Statistical Weights
    164.
    发明申请
    Methods for Validating Radio-Frequency Test Systems Using Statistical Weights 审中-公开
    使用统计权重验证射频测试系统的方法

    公开(公告)号:US20140162628A1

    公开(公告)日:2014-06-12

    申请号:US13708792

    申请日:2012-12-07

    Applicant: APPLE INC.

    CPC classification number: H04B17/26 H04B17/15

    Abstract: A test system may include test stations for testing the radio-frequency performance of wireless electronic devices. A reference test station may perform test measurements on a group of wireless electronic devices under test (DUTs) to select a reference DUT. The reference test station may gather radio-frequency measurements at a number of test frequencies from the group of DUTs. The reference test station may compute statistical data associated with the gathered measurements. The reference test station may compute weight values associated with each test frequency based on the statistical parameters. The reference test station may compute a weighted mean square error value for each DUT based on the weight values and the statistical data. The reference test station may select a DUT having a minimum weighted mean square error value to serve as the reference DUT, which may be used to calibrate test stations in the test system.

    Abstract translation: 测试系统可以包括用于测试无线电子设备的射频性能的测试站。 参考测试台可以对被测试的一组无线电子设备(DUT)执行测试测量,以选择参考DUT。 参考测试台可以从DUT组的多个测试频率收集射频测量。 参考测试台可以计算与所收集的测量相关联的统计数据。 参考测试台可以基于统计参数来计算与每个测试频率相关联的权重值。 参考测试台可以基于权重值和统计数据计算每个DUT的加权均方误差值。 参考测试台可以选择具有最小加权均方误差值的DUT作为参考DUT,其可用于校准测试系统中的测试站。

    Electronic Device with Antenna Grounding Through Sensor Module

    公开(公告)号:US20240079779A1

    公开(公告)日:2024-03-07

    申请号:US18458779

    申请日:2023-08-30

    Applicant: Apple Inc.

    CPC classification number: H01Q5/328 H01Q9/0442

    Abstract: An electronic device may be provided with a sensor module and an antenna having an antenna arm, ground structures, and a tuner. The tuner may be mounted to a printed circuit overlapping the sensor module. A spring may be mounted to the printed circuit and may couple the tuner to a conductive chassis of the sensor module. The sensor module may include optical sensors that gather sensor data through a display and may form ground paths from the tuner to the ground structures. Conductive interconnect structures such as springs may exert biasing forces in different directions to couple the ground paths to different layers of the ground structures. This may serve to couple the antenna to the ground structures as close as possible to the tuner, thereby maximizing antenna performance, despite the presence of the sensor module.

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