Electronic device antennas having multiple operating modes
First Claim
1. An electronic device, comprising:
- a housing having peripheral conductive housing structures;
an antenna resonating element arm formed from a segment of the peripheral conductive housing structures;
an antenna ground;
an antenna feed having a positive antenna feed terminal coupled to the antenna resonating element arm and a ground antenna feed terminal coupled to the antenna ground;
a first adjustable component coupled between the antenna resonating element arm and the antenna ground on a first side of the antenna feed;
a second adjustable component coupled between the antenna resonating element arm and the antenna ground on a second side of the antenna feed; and
control circuitry configured to adjust the first and second adjustable components between a first tuning mode in which the first adjustable component forms an open circuit between the antenna resonating element arm and the antenna ground and the second adjustable component electrically couples the antenna resonating element arm to the antenna ground, a second tuning mode in which the second adjustable component forms an open circuit between the antenna resonating element arm and the antenna ground and the first adjustable component electrically couples the antenna resonating element arm to the antenna ground, and a third tuning mode in which both the first and second adjustable components electrically couple the antenna resonating element arm to the antenna ground.
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Accused Products
Abstract
An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include an antenna with an inverted-F antenna resonating element formed from portions of a peripheral conductive electronic device housing structure and may have an antenna ground that is separated from the antenna resonating element by a gap. The antenna may include a first adjustable component coupled between the antenna resonating element arm and the antenna ground on a first side of the antenna feed and a second adjustable component coupled between the antenna resonating element arm and the antenna ground on a second side of the antenna feed. Control circuitry in the electronic device may adjust the first and second adjustable components between a first tuning mode, a second tuning mode, and a third tuning mode.
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Citations
20 Claims
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1. An electronic device, comprising:
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a housing having peripheral conductive housing structures; an antenna resonating element arm formed from a segment of the peripheral conductive housing structures; an antenna ground; an antenna feed having a positive antenna feed terminal coupled to the antenna resonating element arm and a ground antenna feed terminal coupled to the antenna ground; a first adjustable component coupled between the antenna resonating element arm and the antenna ground on a first side of the antenna feed; a second adjustable component coupled between the antenna resonating element arm and the antenna ground on a second side of the antenna feed; and control circuitry configured to adjust the first and second adjustable components between a first tuning mode in which the first adjustable component forms an open circuit between the antenna resonating element arm and the antenna ground and the second adjustable component electrically couples the antenna resonating element arm to the antenna ground, a second tuning mode in which the second adjustable component forms an open circuit between the antenna resonating element arm and the antenna ground and the first adjustable component electrically couples the antenna resonating element arm to the antenna ground, and a third tuning mode in which both the first and second adjustable components electrically couple the antenna resonating element arm to the antenna ground. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An electronic device, comprising:
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a housing having peripheral conductive structures; an antenna resonating element arm formed from a segment of the peripheral conductive structures that extends between first and second dielectric-filled gaps in the peripheral conductive structures; an antenna ground; an antenna feed having a positive antenna feed terminal coupled to the antenna resonating element arm and a ground antenna feed terminal coupled to the antenna ground; a first antenna tuning component coupled between a first location on the antenna resonating element arm and the antenna ground; and a second antenna tuning component coupled between a second location on the antenna resonating element arm and the antenna ground, wherein the positive antenna feed terminal is interposed between the first and second locations, a first portion of the antenna resonating element arm extending between the first dielectric-filled gap and the positive antenna feed terminal is configured to convey radio-frequency signals in a given frequency band while the first and second antenna tuning components are placed in a first tuning mode, a second portion of the antenna resonating element arm extending between the second location and the second dielectric-filled gap is configured to convey radio-frequency signals in the given frequency band while the first and second antenna tuning components are placed in a second tuning mode, and a third portion of the antenna resonating element arm extending between the first and second locations is configured to convey radio-frequency signals in the given frequency band while the first and second antenna tuning components are placed in a third tuning mode. - View Dependent Claims (14, 15, 16, 17)
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18. An electronic device comprising:
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an antenna resonating element arm; an antenna ground; an antenna feed having a positive antenna feed terminal coupled to the antenna resonating element arm and a ground antenna feed terminal coupled to the antenna ground; a first antenna tuning component coupled between a first location on the antenna resonating element arm and the antenna ground; a second antenna tuning component coupled between a second location on the antenna resonating element arm and the antenna ground; and control circuitry configured to adjust the first and second antenna tuning components between a first tuning mode in which the first antenna tuning component, a portion of the antenna ground, the second antenna tuning component, and a portion of the antenna resonating element arm are configured to resonate in a given frequency band and a second tuning mode in which the first antenna tuning component forms an open circuit between the antenna resonating element arm and the antenna ground. - View Dependent Claims (19, 20)
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Specification