Tunable antenna system with receiver diversity
First Claim
1. An electronic device comprising:
- a housing having a conductive member that runs around a periphery of the housing;
an inverted-F antenna that is formed from an antenna ground and a portion of the conductive member, wherein the inverted-F antenna is configured to operate in a low-band frequency range centered at a first frequency and a high-band frequency range centered at a second frequency that is greater than the first frequency; and
a switchable inductor coupled between the antenna ground and the portion of the peripheral conductive member, wherein the switchable inductor is configured to center the high-band frequency range at a third frequency that is greater than the first and second frequencies while the inverted-F antenna maintains operation in the low-band frequency range centered at the first frequency.
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Accused Products
Abstract
A wireless electronic device may include antenna structures and antenna tuning circuitry. The device may include a display mounted within a housing. A peripheral conductive member may run around the edges of the display and housing. Dielectric-filled gaps may divide the peripheral conductive member into individual segments. A ground plane may be formed within the housing. The ground plane and the segments of the peripheral conductive member may form antennas in upper and lower portions of the housing. The antenna tuning circuitry may include switchable inductor circuits and variable capacitor circuits for the upper and lower antennas. The switchable inductor circuits associated with the upper antenna may be tuned to provide coverage in at least two high-band frequency ranges of interest, whereas the variable capacitor circuits associated with the upper antenna may be tuned to provide coverage in at least two low-band frequency ranges of interest.
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Citations
22 Claims
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1. An electronic device comprising:
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a housing having a conductive member that runs around a periphery of the housing; an inverted-F antenna that is formed from an antenna ground and a portion of the conductive member, wherein the inverted-F antenna is configured to operate in a low-band frequency range centered at a first frequency and a high-band frequency range centered at a second frequency that is greater than the first frequency; and a switchable inductor coupled between the antenna ground and the portion of the peripheral conductive member, wherein the switchable inductor is configured to center the high-band frequency range at a third frequency that is greater than the first and second frequencies while the inverted-F antenna maintains operation in the low-band frequency range centered at the first frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless electronic device comprising:
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a housing containing conductive structures that form an antenna ground and having a conductive member that runs around a periphery of the housing; an antenna that is formed from the antenna ground and a portion of the conductive member; and a switchable inductor circuit coupled between the antenna ground and the portion of the conductive member, wherein; when the switchable inductor circuit is switched out of use, the antenna is configured to operate in a low-band frequency range and in a first high-band frequency range; and when the switchable inductor circuit is switched into use, the antenna is configured to operate in the low-band frequency range and is configured to maintain operation in a second high-band frequency range that is higher in frequency than the first high-band frequency range. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A wireless electronic device comprising:
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a housing having a periphery; a conductive structure that runs along the periphery and that has at least two gaps on the periphery; and an inverted-F antenna formed at least partly from an antenna ground and a portion of the conductive structure; a switchable inductor coupled between the antenna ground and the portion of the conductive structure; and a variable capacitor that bridges at least one of the two gaps in the conductive structure that runs along the periphery, wherein; when the variable capacitor is tuned to provide a first capacitance, the inverted-F antenna is configured to operate in a first low-band frequency range and in a first high-band frequency range; and when the variable capacitor is tuned to provide a second capacitance that is different than the first capacitance and the switchable inductor is switched into use, the inverted-F antenna is configured to operate in a second low-band frequency range that is lower in frequency than the first low-band frequency range and is configured to operate in a second high-band frequency range that is higher than the first high-band frequency range. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification