Electronic device with shared control and power lines for antenna tuning circuits

    公开(公告)号:US10186769B1

    公开(公告)日:2019-01-22

    申请号:US15655098

    申请日:2017-07-20

    Applicant: Apple Inc.

    Abstract: An electronic device may be provided with control signal generation circuitry that generates a differential pair of control signals, power supply circuitry that generates a bias voltage, and an antenna having a tuning circuit. First switching circuitry may be coupled to the power supply circuitry and the control signal generation circuitry. Second switching circuitry may be coupled to the tuning circuit. A pair of control lines may be coupled between the first and second switching circuitry. In a first switching mode, the power supply circuitry may transmit the bias voltage to the tuning circuit over one of the control lines. The bias voltage may charge storage circuitry coupled to the tuning circuit. In a second switching mode, the control signal generation circuitry may transmit the differential pair of control signals to the tuning circuit. The tuning circuit may be powered by the storage circuitry in the second switching mode.

    Electronic device having antenna tuning integrated circuits with sensors

    公开(公告)号:US09698854B2

    公开(公告)日:2017-07-04

    申请号:US14980574

    申请日:2015-12-28

    Applicant: Apple Inc.

    CPC classification number: H04B1/40 H01Q3/26 H01Q9/0442 H04B1/0458 H04B1/18

    Abstract: An electronic device may be provided with wireless circuitry. The wireless circuitry may include one or more antennas. An antenna may have an antenna feed that is coupled to a radio-frequency transceiver with a transmission line. An impedance matching circuit may be coupled to the antenna feed to match the impedance of the transmission line and the antenna. The impedance matching circuit and tunable circuitry in the antenna may be formed using integrated circuits. Each integrated circuit may include switching circuitry that is used in switching components such as inductors and capacitors into use. Sensors such as temperature sensors, current and voltage sensors, power sensors, and impedance sensors may be integrated into the integrated circuits. Each integrated circuit may store settings for the switching circuitry and may include communications and control circuitry for communicating with external circuits and processing sensor data.

    Electronic Device With Tunable Hybrid Antennas
    45.
    发明申请
    Electronic Device With Tunable Hybrid Antennas 审中-公开
    具有可调混合天线的电子装置

    公开(公告)号:US20160336643A1

    公开(公告)日:2016-11-17

    申请号:US14710377

    申请日:2015-05-12

    Applicant: Apple Inc.

    Abstract: An electronic device may have hybrid antennas that include slot antenna resonating elements formed from slots in a ground plane and planar inverted-F antenna resonating elements. The planar inverted-F antenna resonating elements may each have a planar metal member that overlaps one of the slots. The slot of each slot antenna resonating element may divide the ground plane into first and second portions. A return path and feed may be coupled in parallel between the planar metal member and the first portion of the ground plane. Tunable components such as tunable inductors may be used to tune the hybrid antennas. A tunable inductor may bridge the slot in hybrid antenna, may be coupled between the planar metal member of the planar inverted-F antenna resonating element and the ground plane, or multiple tunable inductors may bridge the slot on opposing sides of the planar inverted-F antenna resonating element.

    Abstract translation: 电子设备可以具有混合天线,其包括由接地平面中的槽形成的缝隙天线谐振元件和平面倒F天线谐振元件。 平面倒F天线谐振元件可各自具有与其中一个槽重叠的平面金属部件。 每个缝隙天线谐振元件的槽可以将接地平面分成第一和第二部分。 返回路径和进给可以平行耦合在平面金属构件和接地平面的第一部分之间。 诸如可调谐电感器的可调组件可用于调谐混合天线。 可调电感器可以桥接混合天线中的槽,可以耦合在平面倒F天线谐振元件的平面金属构件和接地平面之间,或者多个可调电感器可以将平面倒F的相对侧上的槽 天线谐振元件

    Wireless Electronic Device With Calibrated Reflectometer
    46.
    发明申请
    Wireless Electronic Device With Calibrated Reflectometer 有权
    带校准反射计的无线电子设备

    公开(公告)号:US20160097833A1

    公开(公告)日:2016-04-07

    申请号:US14506123

    申请日:2014-10-03

    Applicant: Apple Inc.

    Abstract: An electronic device may have control circuitry that uses a reflectometer to measure antenna impedance during operation. The reflectometer may have a directional coupler that is coupled between radio-frequency transceiver circuitry and an antenna. A calibration circuit may be coupled between the directional coupler and the antenna. The calibration circuit may have a first port coupled to the antenna, a second port coupled to the directional coupler, and a third port that is coupled to a calibration resistance. The reflectometer may have terminations of identical impedance that are coupled to ground. Switching circuitry in the reflectometer may be used to route signals from the directional coupler to a feedback receiver for measurement by the control circuitry or to ground through the terminations. Calibrated antenna reflection coefficient measurements may be used in dynamically adjusting the antenna.

    Abstract translation: 电子设备可以具有使用反射计在操作期间测量天线阻抗的控制电路。 反射计可以具有耦合在射频收发器电路和天线之间的定向耦合器。 校准电路可以耦合在定向耦合器和天线之间。 校准电路可以具有耦合到天线的第一端口,耦合到定向耦合器的第二端口和耦合到校准电阻器的第三端口。 反射计可具有与地耦合的具有相同阻抗的终端。 反射计中的开关电路可用于将来自定向耦合器的信号路由到反馈接收器,用于由控制电路进行测量或通过终端进行接地。 校准的天线反射系数测量可用于动态调整天线。

    Electronic Device Having Sensors and Antenna Monitor For Controlling Wireless Operation
    47.
    发明申请
    Electronic Device Having Sensors and Antenna Monitor For Controlling Wireless Operation 有权
    具有传感器的电子设备和用于控制无线操作的天线监视器

    公开(公告)号:US20150341073A1

    公开(公告)日:2015-11-26

    申请号:US14283039

    申请日:2014-05-20

    Applicant: Apple Inc.

    CPC classification number: H04B1/40 H04B1/0458 H04B1/18

    Abstract: An electronic device may be provided with wireless circuitry. Control circuitry may be used to adjust the wireless circuitry. The wireless circuitry may include an antenna that is tuned using tunable components. The control circuitry may gather information on the current operating mode of the. electronic device, sensor data from a proximity sensor, accelerometer, microphone, and other sensors, antenna impedance information for the antenna, and information on the use of connectors in the electronic device. Based on this gathered data, the control circuitry can adjust the tunable components to compensate for antenna detuning due to loading from nearby external objects, may adjust transmit power levels, and may make other wireless circuit adjustments.

    Abstract translation: 电子设备可以设置有无线电路。 控制电路可用于调整无线电路。 无线电路可以包括使用可调组件调谐的天线。 控制电路可以收集关于当前操作模式的信息。 电子设备,来自接近传感器的传感器数据,加速度计,麦克风和其他传感器,用于天线的天线阻抗信息,以及关于在电子设备中使用连接器的信息。 基于收集的数据,控制电路可以调整可调组件以补偿由于来自附近的外部物体的负载引起的天线失谐,可以调整发射功率电平,并且可以进行其他无线电路调整。

    Methods and apparatus for performing coexistence testing for multi-antenna electronic devices
    48.
    发明授权
    Methods and apparatus for performing coexistence testing for multi-antenna electronic devices 有权
    用于执行多天线电子设备共存测试的方法和装置

    公开(公告)号:US08995926B2

    公开(公告)日:2015-03-31

    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来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。

    Antenna With Tunable High Band Parasitic Element
    49.
    发明申请
    Antenna With Tunable High Band Parasitic Element 有权
    天线与可调高带寄生元件

    公开(公告)号:US20140333496A1

    公开(公告)日:2014-11-13

    申请号:US13890013

    申请日:2013-05-08

    Applicant: Apple Inc.

    CPC classification number: H01Q5/30 H01Q1/243 H01Q5/321 H01Q5/378 H01Q9/0421

    Abstract: Electronic devices may be provided that include radio-frequency transceiver circuitry and antennas. An antenna may be formed from an antenna resonating element and an antenna ground. The antenna resonating element may have a shorter portion that resonates at higher communications band frequencies and a longer portion that resonates at lower communications band frequencies. The resonating element may be formed from a peripheral conductive electronic device housing structure that is separated from the antenna ground by an opening. A parasitic monopole antenna resonating element or parasitic loop antenna resonating element may be located in the opening. Antenna tuning in the higher communications band may be implemented using an adjustable inductor in the parasitic element. Antenna tuning in the lower communications band may be implemented using an adjustable inductor that couples the antenna resonating element to the antenna ground.

    Abstract translation: 可以提供包括射频收发器电路和天线的电子设备。 天线可以由天线谐振元件和天线接地形成。 天线谐振元件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。 谐振元件可以由外部导电电子器件外壳结构形成,该外壳由天线与开口隔开。 寄生单极天线谐振元件或寄生环形天线谐振元件可以位于开口中。 可以使用寄生元件中的可调电感器来实现较高通信频带中的天线调谐。 可以使用将天线谐振元件耦合到天线地的可调节电感器来实现较低通信频带中的天线调谐。

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