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公开(公告)号：US20170302326A1
公开(公告)日：2017-10-19
申请号：US15636498
申请日：2017-06-28
申请人： Apple Inc.
发明人： Matthew A. Mow , Liang Han , Ming-Ju Tsai , Thomas E. Biedka , Victor Lee , James G. Judkins , Mattia Pascolini
CPC分类号： H04B1/40 , H01Q3/26 , H01Q9/0442 , H04B1/0458 , H04B1/18
摘要： 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.
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公开(公告)号：US09742459B2
公开(公告)日：2017-08-22
申请号：US14283039
申请日：2014-05-20
申请人： Apple Inc.
发明人： Enrique Ayala Vazquez , Hongfei Hu , Mattia Pascolini , Yuehui Ouyang , Salih Yarga , Yijun Zhou , Erdinc Irci , Jayesh Nath , Ming-Ju Tsai , Matthew A. Mow , Liang Han , James G. Judkins , Robert W. Schlub
CPC分类号： H04B1/40 , H04B1/0458 , H04B1/18
摘要： 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.
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公开(公告)号：US09594147B2
公开(公告)日：2017-03-14
申请号：US14506123
申请日：2014-10-03
申请人： Apple Inc.
发明人： Liang Han , Matthew A. Mow , Thomas E. Biedka , Mattia Pascolini , Ming-Ju Tsai , James G. Judkins , Victor Lee , Robert W. Schlub
CPC分类号： G01R35/005 , G01R29/0878 , H01Q1/243 , H01Q9/42 , H01Q13/10 , H04B17/103 , H04B17/14
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US11569858B2
公开(公告)日：2023-01-31
申请号：US16898069
申请日：2020-06-10
申请人： Apple Inc.
发明人： Liang Han , Enrique Ayala Vazquez , Thomas E. Biedka , Hongfei Hu , Erdinc Irci , Nanbo Jin , James G. Judkins , Victor C. Lee , Matthew A. Mow , Mattia Pascolini , Ming-Ju Tsai , Yiren Wang , Yuancheng Xu , Yijun Zhou
摘要： 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.
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5.发明申请公开(公告)号：US20190027809A1
公开(公告)日：2019-01-24
申请号：US15655251
申请日：2017-07-20
申请人： Apple Inc.
发明人： James G. Judkins , Jing Zhu , Liang Han , Matthew A. Mow , Ming-Ju Tsai , Thomas E. Biedka , Victor C. Lee , Xu Han
摘要： An electronic device may be provided with wireless circuitry that includes one or more antennas and a transceiver. An integrated circuit may be coupled between the transceiver and the antenna and may include multiple tunable components such that tune the response of the antenna. The control signals may be generated by a tuning controller external to the integrated circuit. Shared control interface circuitry may be formed on the integrated circuit for interfacing between the tuning controller and each of the tunable components on the integrated circuit. The control interface circuitry may include a conductive path and decoupling circuitry that routes the control signals to corresponding control inputs on each of the tunable components. Sharing the control interface circuitry between each tunable component on the integrated circuit may minimize the space required on the integrated circuit for controlling the response of the antenna.
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公开(公告)号：US09960801B2
公开(公告)日：2018-05-01
申请号：US15636498
申请日：2017-06-28
申请人： Apple Inc.
发明人： Matthew A. Mow , Liang Han , Ming-Ju Tsai , Thomas E. Biedka , Victor Lee , James G. Judkins , Mattia Pascolini
CPC分类号： H04B1/40 , H01Q3/26 , H01Q9/0442 , H04B1/0458 , H04B1/18
摘要： 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.
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7.发明授权Methods and apparatus for testing electronic devices under specified radio-frequency voltage and current stress 有权在指定的射频电压和电流应力下测试电子设备的方法和装置公开(公告)号：US08971874B2
公开(公告)日：2015-03-03
申请号：US13873048
申请日：2013-04-29
申请人： Apple Inc.
发明人： Liang Han , Matthew A. Mow , James G. Judkins , Thomas E. Biedka , Ming-Ju Tsai , Robert W. Schlub
CPC分类号： H04W24/06 , H03F1/565 , H03F3/195 , H03F3/245 , H03F2200/111 , H03F2200/222 , H04B17/0085 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/23
摘要： Test systems for characterizing devices under test (DUTs) are provided. A test system for testing a DUT in a shunt configuration may include a signal generator and a matching network that is coupled between the signal generator and the DUT and that is optimized to apply desired voltage/current stress to the DUT with reduced source power. The matching network may be configured to provide matching and desired stress levels at two or more frequency bands. In another suitable embodiment, a test system for testing a DUT in a series configuration may include a signal generator, an input matching network coupled between the DUT and a first terminal of the DUT, and an output matching network coupled between the DUT and a second terminal of the DUT. The input and output matching network may be optimized to apply desired voltage/current stress to the DUT with reduced source power.
摘要翻译： 提供了用于表征被测设备（DUT）的测试系统。 用于在分流配置中测试DUT的测试系统可以包括信号发生器和耦合在信号发生器和DUT之间的匹配网络，并且被优化以在具有降低的源功率的DUT上施加期望的电压/电流应力。 匹配网络可以被配置为在两个或更多个频带处提供匹配和期望的应力水平。 在另一个合适的实施例中，用于测试串联配置中的DUT的测试系统可以包括信号发生器，耦合在DUT和DUT的第一端之间的输入匹配网络，以及耦合在DUT和第二个DUT之间的输出匹配网络 DUT的端子。 可以优化输入和输出匹配网络，以便以较低的源功率将所需的电压/电流应力施加到DUT。
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公开(公告)号：US20210218430A1
公开(公告)日：2021-07-15
申请号：US16898069
申请日：2020-06-10
申请人： Apple Inc.
发明人： Liang Han , Enrique Ayala Vazquez , Thomas E. Biedka , Hongfei Hu , Erdinc Irci , Nanbo Jin , James G. Judkins , Victor C. Lee , Matthew A. Mow , Mattia Pascolini , Ming-Ju Tsai , Yiren Wang , Yuancheng Xu , Yijun Zhou
摘要： 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.
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公开(公告)号：US09930725B2
公开(公告)日：2018-03-27
申请号：US14967772
申请日：2015-12-14
申请人： Apple Inc.
发明人： Matthew A. Mow , Mattia Pascolini , Thomas E. Biedka , Liang Han , Ming-Ju Tsai , Victor Lee , James G. Judkins
CPC分类号： H04W88/06 , H04B1/0053 , H04B1/3827 , H04B17/102 , H04B17/104 , H04L25/0264 , H04W84/042 , H04W84/12
摘要： An electronic device may be provided with wireless circuitry. An application processor may generate wireless data that is to be transmitted using the wireless circuitry and may process wireless data that has been received using the wireless circuitry. The wireless circuitry may include multiple baseband processors, multiple associated radios, and front-end module and antenna circuitry. Sensors may be used to provide the application processor with sensor data. During operation, the application processor and the baseband processors may be used to transmit and receive wireless communications traffic. A multiradio controller integrated circuit that does not transmit or receive the wireless communications traffic may be used in controlling the wireless circuitry based on impedance measurements, sensor data, and other information.
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公开(公告)号：US20160204821A1
公开(公告)日：2016-07-14
申请号：US14980591
申请日：2015-12-28
申请人： Apple Inc.
发明人： Liang Han , Matthew A. Mow , Thomas E. Biedka , Ming-Ju Tsai , James G. Judkins , Victor C. Lee , Mattia Pascolini
IPC分类号： H04B1/40
CPC分类号： G01R29/10 , H04B1/0458 , H04B1/18 , H04B1/40
摘要： An electronic device may be provided with wireless circuitry. The wireless circuitry may include wireless transceiver circuitry that transmits signals towards an antenna. A signal path may carry the transmitted signals to the antenna. Reflected signals from the antenna may be carried along the signal path towards the transceiver circuitry. Coupler circuitry may include a forward coupler that taps the transmitted signals, a first reverse coupler that taps the reflected signals from the antenna, and a second reverse coupler that taps the reflected signals that have passed through the first reverse coupler. Analog processing circuitry and digital processing circuitry may be used to produce an impedance measurement from the tapped signals from the coupler circuitry. The analog processing circuitry may include analog signal mixers, low pass filters, and analog-to-digital converter circuitry.
摘要翻译： 电子设备可以设置有无线电路。 无线电路可以包括向天线发送信号的无线收发器电路。 信号路径可以将发送的信号传送到天线。 来自天线的反射信号可以沿着朝向收发器电路的信号路径传送。 耦合器电路可以包括分接所发送的信号的前向耦合器，从天线抽头反射的信号的第一反向耦合器，以及抽头已经穿过第一反向耦合器的反射信号的第二反向耦合器。 可以使用模拟处理电路和数字处理电路从来自耦合器电路的抽头信号产生阻抗测量。 模拟处理电路可以包括模拟信号混合器，低通滤波器和模数转换器电路。
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