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AssigneeApple Inc.
InventorsRobert S. Sorensen, Qingxiang Li, Matthew A. Mow, Jinku Kim
Estimating the term…
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.
An antenna in an electronic device comprising:
A method for using an electronic device having control circuitry, transceiver circuitry, and an antenna, wherein the antenna is coupled to the transceiver circuitry via an antenna feed, wherein the control circuitry is coupled to the antenna feed, and wherein the antenna includes at least one antenna tuning circuit, the method comprising:
The method defined in claim, wherein the antenna tuning circuit includes a control circuit and a tunable element, and wherein supplying the control signal to the antenna tuning circuit comprises configuring the control circuit to generate an additional control signal that adjusts the tunable element.
A method for using an electronic device having control circuitry that supplies a direct current (DC) control signal, transceiver circuitry, and an antenna, wherein the antenna is coupled to the transceiver circuitry via an antenna feed, wherein the control circuitry is coupled to the antenna feed, and wherein the antenna includes at least one antenna tuning circuit, the method comprising:
Dependencies are inferred from the claim text.