Tunable antenna systems
First Claim
1. An adjustable antenna system, comprising:
- a peripheral conductive member in an electronic device housing, wherein the electronic device housing has a periphery;
dielectric formed within first and second gaps in the peripheral conductive member, wherein each gap has an effective gap width, wherein the dielectric is located on the periphery of the electronic device housing; and
first and second switches that electrically adjust the effective widths of the first and second gaps to tune a frequency response of the adjustable antenna system by shorting opposite sides of the first and second gaps, respectively; and
storage and processing circuitry that provides control signals to a control input of the first switch and to a control input of the second switch to tune the frequency response of the adjustable antenna system.
1 Assignment
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Accused Products
Abstract
An electronic device has wireless communications circuitry including an adjustable antenna system coupled to a radio-frequency transceiver. The adjustable antenna system may include one or more adjustable electrical components that are controlled by storage and processing circuitry in the electronic device. The adjustable electrical components may include switches and components that can be adjusted between numerous different states. The adjustable electrical components may be coupled between antenna system components such as transmission line elements, matching network elements, antenna elements and antenna feeds. By adjusting the adjustable electrical components, the storage and processing circuitry can tune the adjustable antenna system to ensure that the adjustable antenna system covers communications bands of interest.
97 Citations
20 Claims
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1. An adjustable antenna system, comprising:
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a peripheral conductive member in an electronic device housing, wherein the electronic device housing has a periphery; dielectric formed within first and second gaps in the peripheral conductive member, wherein each gap has an effective gap width, wherein the dielectric is located on the periphery of the electronic device housing; and first and second switches that electrically adjust the effective widths of the first and second gaps to tune a frequency response of the adjustable antenna system by shorting opposite sides of the first and second gaps, respectively; and storage and processing circuitry that provides control signals to a control input of the first switch and to a control input of the second switch to tune the frequency response of the adjustable antenna system. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An electronic device having an exterior, comprising:
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a display; a rectangular electronic device housing with a rectangular periphery that substantially surrounds the display, wherein the rectangular electronic device housing has external surfaces and a rectangular peripheral conductive member that runs along the rectangular periphery, wherein the rectangular peripheral conductive member extends along at least two of the external surfaces of the rectangular electronic device housing at the exterior of the electronic device; a radio-frequency transceiver; an antenna having an antenna feed; a transmission line path coupling the radio-frequency transceiver and the antenna feed; storage and processing circuitry, wherein the peripheral conductive member includes a dielectric gap and includes portions that form at least part of the antenna; and an adjustable electrical component that has at least one terminal that is electrically coupled to the peripheral conductive member and that has a control terminal that receives control signals from the storage and processing circuitry that adjust frequency response in the antenna. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. An electronic device, comprising:
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a radio-frequency transceiver; storage and processing circuitry; and an adjustable antenna system that is coupled to the radio-frequency transceiver, wherein the radio-frequency transceiver is configured to transmit and receive radio-frequency signals using the adjustable antenna system, wherein the adjustable antenna system includes an adjustable electrical component that is coupled to an electrical component on a flex circuit, wherein the adjustable electrical component is controlled by control signals from the storage and processing circuitry, and wherein the storage and processing circuitry tunes the adjustable antenna system to cover desired communications bands by applying the control signals to the adjustable electrical component, wherein the electrical component on the flex circuit comprises a camera module mounted on the flex circuit. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification