Tunable Antenna System with Multiple Feeds
    13.
    发明申请
    Tunable Antenna System with Multiple Feeds 有权
    具有多个馈源的可调谐天线系统

    公开(公告)号:US20130203364A1

    公开(公告)日:2013-08-08

    申请号:US13368855

    申请日:2012-02-08

    IPC分类号: H04B1/18 H04B1/40

    CPC分类号: H01Q1/243 H01Q5/35

    摘要: 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 an antenna having first and second feeds at different locations. The transceiver circuit may have a first circuit that handles communications using the first feed and may have a second circuit that handles communications using the second feed. A first filter may be interposed between the first feed and the first circuit and a second filter may be interposed between the second feed and the second circuit. The first and second filters and the antenna may be configured so that the first circuit can use the first feed without being adversely affected by the presence of the second feed and so that the second circuit can use the second feed without being adversely affected by the presence of the first feed.

    摘要翻译: 可以提供包含无线通信电路的电子设备。 无线通信电路可以包括射频收发器电路和天线结构。 天线结构可以形成在不同位置具有第一和第二馈送的天线。 收发器电路可以具有处理使用第一馈送的通信的第一电路,并且可以具有处理使用第二馈送的通信的第二电路。 第一过滤器可以插入在第一进料和第一回路之间,并且第二过滤器可以介于第二进料和第二回路之间。 第一和第二滤波器和天线可以被配置成使得第一电路可以使用第一馈电而不受第二馈电的存在的不利影响,并且使得第二电路可以使用第二馈电而不受存在的不利影响 的第一个饲料。

    Antenna With Switchable Inductor Low-Band Tuning
    14.
    发明申请
    Antenna With Switchable Inductor Low-Band Tuning 有权
    天线可切换电感低频调谐

    公开(公告)号:US20130169490A1

    公开(公告)日:2013-07-04

    申请号:US13343657

    申请日:2012-01-04

    IPC分类号: H01Q1/24 H01Q1/48

    CPC分类号: H01Q1/243 H01Q5/357

    摘要: Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antennas. An antenna may be formed from an antenna resonating element arm and an antenna ground. The antenna resonating element arm may have a shorter portion that resonates at higher communications band frequencies and a longer portion that resonates at lower communications band frequencies. A short circuit branch may be coupled between the shorter portion of the antenna resonating element arm and the antenna ground. A series-connected inductor and switch may be coupled between the longer portion of the antenna resonating element arm and the antenna ground. An antenna feed branch may be coupled between the antenna resonating element arm and the antenna ground at a location that is between the short circuit branch and the series-connected inductor and switch.

    摘要翻译: 可以提供包含无线通信电路的电子设备。 无线通信电路可以包括射频收发器电路和天线。 天线可以由天线谐振元件臂和天线接地形成。 天线谐振元件臂可以具有在较高通信频带频率下谐振的较短部分和在较低通信频带频率下谐振的较长部分。 短路支路可以耦合在天线谐振元件臂的较短部分和天线接地之间。 串联的电感器和开关可以耦合在天线谐振元件臂的较长部分和天线接地之间。 在天线谐振元件臂和天线接地之间的天线馈电支路可以在短路支路和串联连接的电感器和开关之间的位置耦合。

    Antenna with switchable inductor low-band tuning
    15.
    发明授权
    Antenna with switchable inductor low-band tuning 有权
    天线可切换电感低频调谐

    公开(公告)号:US09350069B2

    公开(公告)日:2016-05-24

    申请号:US13343657

    申请日:2012-01-04

    IPC分类号: H01Q1/24 H01Q5/00 H01Q5/357

    CPC分类号: H01Q1/243 H01Q5/357

    摘要: Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antennas. An antenna may be formed from an antenna resonating element arm and an antenna ground. The antenna resonating element arm may have a shorter portion that resonates at higher communications band frequencies and a longer portion that resonates at lower communications band frequencies. A short circuit branch may be coupled between the shorter portion of the antenna resonating element arm and the antenna ground. A series-connected inductor and switch may be coupled between the longer portion of the antenna resonating element arm and the antenna ground. An antenna feed branch may be coupled between the antenna resonating element arm and the antenna ground at a location that is between the short circuit branch and the series-connected inductor and switch.

    摘要翻译: 可以提供包含无线通信电路的电子设备。 无线通信电路可以包括射频收发器电路和天线。 天线可以由天线谐振元件臂和天线接地形成。 天线谐振元件臂可以具有在较高通信频带频率下谐振的较短部分和在较低通信频带频率下谐振的较长部分。 短路支路可以耦合在天线谐振元件臂的较短部分和天线接地之间。 串联的电感器和开关可以耦合在天线谐振元件臂的较长部分和天线接地之间。 在天线谐振元件臂和天线接地之间的天线馈电支路可以在短路支路和串联连接的电感器和开关之间的位置耦合。

    Test system with adjustable radio-frequency probe array
    16.
    发明授权
    Test system with adjustable radio-frequency probe array 有权
    具有可调式射频探头阵列的测试系统

    公开(公告)号:US09000989B2

    公开(公告)日:2015-04-07

    申请号:US13212108

    申请日:2011-08-17

    IPC分类号: G01R29/08 G01R29/10 G01R31/28

    CPC分类号: G01R29/10 G01R31/2824

    摘要: Electronic device structures may be tested using a radio-frequency test system. The radio-frequency test system may include radio-frequency test equipment and an associated test fixture. The radio-frequency test equipment may be used in generating and measuring radio-frequency signals. The test fixture may contain adjustable structures that allow the positions of radio-frequency test probes to be adjusted. The test system may be configured to position radio-frequency probes in the test fixture so that some probe contacts form electrical connections with conductive antenna structures. The radio-frequency probes may contain other contacts that are positioned to form electrical connections with conductive electronic device housing structures. During radio-frequency testing, the test equipment in the test system may apply radio-frequency test signals to the device structures under test using the test probes. Corresponding radio-frequency test signals may be measured by the test equipment.

    摘要翻译: 可以使用射频测试系统来测试电子设备结构。 射频测试系统可以包括射频测试设备和相关的测试夹具。 射频测试设备可用于产生和测量射频信号。 测试夹具可能包含允许调整射频测试探头位置的可调结构。 测试系统可以被配置为将射频探针放置在测试夹具中,使得一些探针触点与导电天线结构形成电连接。 射频探头可以包含定位成与导电电子器件壳体结构形成电连接的其它触点。 在射频测试期间,测试系统中的测试设备可以使用测试探针将射频测试信号应用于被测设备结构。 相应的射频测试信号可以由测试设备测量。

    Methods and Apparatus for Testing Small Form Factor Antenna Tuning Elements
    17.
    发明申请
    Methods and Apparatus for Testing Small Form Factor Antenna Tuning Elements 有权
    测量小型天线调谐元件的方法和装置

    公开(公告)号:US20130321012A1

    公开(公告)日:2013-12-05

    申请号:US13487149

    申请日:2012-06-01

    IPC分类号: G01R31/00 G01R35/00

    摘要: A test system for testing a device under test (DUT) is provided. The test system may include a DUT receiving structure configured to receive the DUT during testing and a DUT retention structure that is configured to press the DUT against the DUT receiving structure so that DUT cannot inadvertently shift around during testing. The DUT retention structure may include a pressure sensor operable to detect an amount of pressure that is applied to the DUT. The DUT retention structure may be raised and lowered vertically using a manually-controlled or a computer-controlled positioner. The positioner may be adjusted using a coarse tuning knob and a fine tuning knob. The positioner may be calibrated such that the DUT retention structure applies a sufficient amount of pressure on the DUT during production testing.

    摘要翻译: 提供了一种用于测试被测器件(DUT)的测试系统。 测试系统可以包括被配置为在测试期间接收DUT的DUT接收结构和被配置成将DUT抵抗DUT接收结构按压的DUT保持结构,使得DUT在测试期间不会无意中移动。 DUT保持结构可以包括可操作以检测施加到DUT的压力量的压力传感器。 DUT保持结构可以使用手动控制或计算机控制的定位器垂直升高和降低。 可以使用粗调节旋钮和微调旋钮调节定位器。 可以对定位器进行校准,使得DUT保持结构在生产测试期间在DUT上施加足够的压力。

    Methods for Modeling Tunable Radio-Frequency Elements
    18.
    发明申请
    Methods for Modeling Tunable Radio-Frequency Elements 有权
    可调谐射频元件建模方法

    公开(公告)号:US20130293249A1

    公开(公告)日:2013-11-07

    申请号:US13466017

    申请日:2012-05-07

    IPC分类号: G01R31/00

    摘要: A test system for characterizing an antenna tuning element is provided. The test system may include a test host, a radio-frequency tester, and a test fixture. The test system may calibrate the radio-frequency tester using known coaxial standards. The test system may then calibrate transmission line effects associated with the test fixture using a THRU-REFLECT-LINE calibration algorithm. The antenna tuning element may be mounted on a test socket that is part of the test fixture. While the antenna tuning element is mounted on the test socket, scattering parameter measurements may be obtained using the radio-frequency tester. An equivalent circuit model for the test socket can be obtained based on the measured scattering parameters and known characteristics of the antenna tuning element. Once the test socket has been characterized, an equivalent circuit model for the antenna tuning element can be obtained by extracting suitable modeling parameters from the measured scattering parameters.

    摘要翻译: 提供了一种用于表征天线调谐元件的测试系统。 测试系统可以包括测试主机,射频测试仪和测试夹具。 测试系统可以使用已知的同轴标准校准射频测试仪。 然后,测试系统可以使用THRU-REFLECT-LINE校准算法来校准与测试夹具相关联的传输线效应。 天线调谐元件可以安装在作为测试夹具的一部分的测试插座上。 当天线调谐元件安装在测试插座上时,可以使用射频测试仪获得散射参数测量值。 基于测量的散射参数和天线调谐元件的已知特性,可以获得用于测试插座的等效电路模型。 一旦测试插座被表征,可以通过从测量的散射参数中提取合适的建模参数来获得天线调谐元件的等效电路模型。

    Methods for Characterizing Tunable Radio-Frequency Elements
    19.
    发明申请
    Methods for Characterizing Tunable Radio-Frequency Elements 有权
    表征可调谐射频单元的方法

    公开(公告)号:US20130234741A1

    公开(公告)日:2013-09-12

    申请号:US13415195

    申请日:2012-03-08

    IPC分类号: G01R31/02

    摘要: A wireless electronic device may contain at least one antenna tuning element for use in tuning the operating frequency range of the device. The antenna tuning element may include radio-frequency switches, continuously/semi-continuously adjustable components such as tunable resistors, inductors, and capacitors, and other load circuits that provide desired impedance characteristics. A test station may be used to measure the radio-frequency characteristics associated with the tuning element. The test station may provide adjustable temperature, power, and impedance control to help emulate a true application environment for the tuning element without having to place the tuning element within an actual device during testing. The test system may include at least one signal generator and a tester for measuring harmonic distortion values and may include at least two signal generators and a tester for measuring intermodulation distortion values. During testing, the antenna tuning element may be placed in a series or shunt configuration.

    摘要翻译: 无线电子设备可以包含用于调整设备的工作频率范围的至少一个天线调谐元件。 天线调谐元件可以包括射频开关,连续/半连续可调组件,例如可调电阻器,电感器和电容器,以及提供所需阻抗特性的其它负载电路。 可以使用测试台来测量与调谐元件相关联的射频特性。 测试台可以提供可调节的温度,功率和阻抗控制,以帮助模拟调谐元件的真实应用环境,而不必在测试期间将调谐元件放置在实际设备内。 测试系统可以包括至少一个信号发生器和用于测量谐波失真值的测试器,并且可以包括用于测量互调失真值的至少两个信号发生器和测试器。 在测试期间,天线调谐元件可以被放置成串联或分流配置。

    Weld check stations
    20.
    发明授权
    Weld check stations 失效
    焊接检查站

    公开(公告)号:US08478549B2

    公开(公告)日:2013-07-02

    申请号:US12869617

    申请日:2010-08-26

    IPC分类号: G01B5/28 G01R31/00

    CPC分类号: G01R31/04

    摘要: A method of manufacture for a portable computing device is described. In particular, methods and apparatus for assessing a quality of weld joints used to connect one or more components of the portable computing device are described. The weld joints can include one or more weld points. At a weld check station, using a vector network analyzer, a test signal generated can be passed through the weld joint and a response signal can be measured. The measured characteristics can be used to assess a quality of the weld joint. In one embodiment, the vector network analyzer can be used to generate a number of high frequency test signals that are passed through the weld to perform a time domain reflectometry measurement where the weld joint can be accepted or rejected based upon the measurement.

    摘要翻译: 描述了便携式计算设备的制造方法。 特别地,描述了用于评估用于连接便携式计算设备的一个或多个部件的焊接接头的质量的方法和设备。 焊缝可以包括一个或多个焊接点。 在焊接检查站,使用矢量网络分析仪,产生的测试信号可以通过焊接接头,并且可以测量响应信号。 测量的特性可用于评估焊缝的质量。 在一个实施例中,矢量网络分析器可以用于产生通过焊缝的多个高频测试信号,以执行时域反射测量,其中基于测量能够接受或拒绝焊接接头。