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公开(公告)号：US20150255869A1
公开(公告)日：2015-09-10
申请号：US14719223
申请日：2015-05-21
Applicant: Apple Inc.
Inventor： Robert S. Sorensen , Qingxiang Li , Matthew A. Mow , Jinku Kim
CPC classification number: H01Q5/314 , H01Q5/328 , H01Q5/335 , H01Q7/005 , H01Q23/00 , H03J3/20 , H03J2200/11 , H04B1/40
Abstract: An electronic device may include an adjustable power supply, at least one antenna, and associated antenna tuning circuitry. The antenna tuning circuitry may be an integral part of the antenna and may include a control circuit and at least one tunable element. The tunable 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. The power supply may provide power supply voltage signals to the antenna tuning circuitry via inductive coupling. The power supply voltage signals may be modulated according to a predetermined lookup table during device startup so that the control circuit is configured to generate desired control signals. These control signals adjust the tunable element so that the antenna can support wireless operation in desired frequency bands.
Abstract translation: 电子设备可以包括可调电源，至少一个天线和相关联的天线调谐电路。 天线调谐电路可以是天线的组成部分，并且可以包括控制电路和至少一个可调谐元件。 可调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。 电源可以通过电感耦合向天线调谐电路提供电源电压信号。 在设备启动期间，可以根据预定的查找表来调制电源电压信号，使得控制电路被配置为产生期望的控制信号。 这些控制信号调节可调谐元件，使天线能够支持所需频带的无线操作。
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公开(公告)号：US09923272B2
公开(公告)日：2018-03-20
申请号：US14719223
申请日：2015-05-21
Applicant: Apple Inc.
Inventor： Robert S. Sorensen , Qingxiang Li , Matthew A. Mow , Jinku Kim
CPC classification number: H01Q5/314 , H01Q5/328 , H01Q5/335 , H01Q7/005 , H01Q23/00 , H03J3/20 , H03J2200/11 , H04B1/40
Abstract: An electronic device may include an adjustable power supply, at least one antenna, and associated antenna tuning circuitry. The antenna tuning circuitry may be an integral part of the antenna and may include a control circuit and at least one tunable element. The tunable 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. The power supply may provide power supply voltage signals to the antenna tuning circuitry via inductive coupling. The power supply voltage signals may be modulated according to a predetermined lookup table during device startup so that the control circuit is configured to generate desired control signals. These control signals adjust the tunable element so that the antenna can support wireless operation in desired frequency bands.
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