ANTENNA DIVERSITY SYSTEMS FOR PORTABLE ELECTRONIC DEVICES
First Claim
1. An electronic device, comprising:
- a plurality of antennas that each transmit and receive radio-frequency signals in at least a first radio-frequency band;
a proximity sensor associated with one of the antennas in the plurality of antennas;
a radio-frequency transceiver; and
switching circuitry that selectively couples a given antenna in the plurality of antennas to the radio-frequency transceiver.
1 Assignment
0 Petitions
Accused Products
Abstract
Antenna diversity systems are provided for portable electronic devices that have wireless communications circuitry and environment sensors. The wireless communications circuitry may include multiple redundant antennas that operate in one or more overlapping radio-frequency communications bands. The environment sensors and redundant antennas may be used in implementing an antenna diversity system. For example, an electronic device may use environment sensors to select an antenna for use in handling wireless communications. The electronic devices may monitor the wireless performance of an active antenna. When the wireless performance of the active antenna degrades, the electronic devices may select a new antenna for wireless communications using the antenna diversity system and environment sensors. Antenna selection may also be made based on which features are being used in the electronic device.
195 Citations
23 Claims
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1. An electronic device, comprising:
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a plurality of antennas that each transmit and receive radio-frequency signals in at least a first radio-frequency band; a proximity sensor associated with one of the antennas in the plurality of antennas; a radio-frequency transceiver; and switching circuitry that selectively couples a given antenna in the plurality of antennas to the radio-frequency transceiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A portable electronic device with wireless communications circuitry, comprising:
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an orientation sensor that determines an orientation of the portable electronic device relative to a horizontal plane; a plurality of antennas that each transmit and receive radio-frequency signals in at least a first radio-frequency band; a radio-frequency transceiver; and switching circuitry that selectively couples one of the plurality of antennas to the radio-frequency transceiver. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A portable electronic device comprising:
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first and second antennas that each transmit and receive radio-frequency signals in at least a first radio-frequency band; a first proximity sensor that is located adjacent to the first antenna and that detects objects relative to the first antenna; a second proximity sensor that is located adjacent to the second antenna and that detects objects relative to the second antenna; a radio-frequency transceiver; and switching circuitry that selectively couples a selected one of the first and second antennas to the radio-frequency transceiver. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification