公开(公告)号：WO2016053723A1

公开(公告)日：2016-04-07

申请号：PCT/US2015/051796

申请日：2015-09-23

Applicant: APPLE INC.

Inventor： HAN, Liang ,  MOW, Matthew, A. ,  BIEDKA, Thomas, E. ,  PISCOLINI, Mattia ,  TSAI, Ming-ju ,  JUDKINS, James, G. ,  LEE, Victor, C. ,  SCHLUB, Robert, W.

IPC: H04B17/10 ,  H04B17/14

CPC classification number: G01R35/005 ,  G01R29/0878 ,  H01Q1/243 ,  H01Q9/42 ,  H01Q13/10 ,  H04B17/103 ,  H04B17/14

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。

公开(公告)号：WO2016111897A1

公开(公告)日：2016-07-14

申请号：PCT/US2015/068090

申请日：2015-12-30

Applicant: APPLE INC.

Inventor： MOW, Matthew, A. ,  HAN, Liang ,  TSAI, Ming-ju ,  BIEDKA, Thomas, E. ,  LEE, Victor, C. ,  JUDKINS, James, G. ,  PASCOLINI, Mattia

IPC: H04B1/04 ,  H04B1/18

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.

Abstract translation: 电子设备可以设置有无线电路。 无线电路可以包括一个或多个天线。 天线可以具有耦合到具有传输线的射频收发器的天线馈送。 阻抗匹配电路可以耦合到天线馈电以匹配传输线和天线的阻抗。 天线中的阻抗匹配电路和可调谐电路可以使用集成电路形成。 每个集成电路可以包括用于将诸如电感器和电容器的部件切换到使用中的开关电路。 诸如温度传感器，电流和电压传感器，功率传感器和阻抗传感器的传感器可以集成到集成电路中。 每个集成电路可以存储用于切换电路的设置，并且可以包括用于与外部电路通信和处理传感器数据的通信和控制电路。