Antennas for near-field and non-near-field communications
First Claim
1. An electronic device, comprising:
- antenna structures that comprise filtering circuitry;
non-near-field communications circuitry coupled to the antenna structures;
near-field communications circuitry coupled to the antenna structures; and
proximity sensor circuitry coupled to the antenna structures, wherein the filtering circuitry configures the antenna structures to form a first antenna having a first resonating element arm configured to operate at frequencies associated with the non-near-field communications circuitry and a second antenna having a second resonating element arm that is configured to operate at the frequencies associated with the non-near-field communications circuitry and that is separate from the first resonating element arm when the antenna structures are operated at the frequencies associated with the non-near-field communications circuitry.
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Accused Products
Abstract
An electronic device may be provided with antenna structures. The antenna structures may be coupled to non-near-field communications circuitry such as cellular telephone transceiver circuitry or wireless local area network circuitry. When operated at non-near-field communication frequencies, the antenna structures may be configured to serve as one or more inverted-F antennas or other antennas for supporting far field wireless communications. Proximity sensor circuitry and near-field communications circuitry may also be coupled to the antenna structures. When operated at proximity sensor frequencies, the antenna structures may be used in forming capacitive proximity sensor electrode structures. When operated at near-field communications frequencies, the antenna structures may be used in forming an inductive near-field communications loop antenna.
68 Citations
20 Claims
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1. An electronic device, comprising:
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antenna structures that comprise filtering circuitry; non-near-field communications circuitry coupled to the antenna structures; near-field communications circuitry coupled to the antenna structures; and proximity sensor circuitry coupled to the antenna structures, wherein the filtering circuitry configures the antenna structures to form a first antenna having a first resonating element arm configured to operate at frequencies associated with the non-near-field communications circuitry and a second antenna having a second resonating element arm that is configured to operate at the frequencies associated with the non-near-field communications circuitry and that is separate from the first resonating element arm when the antenna structures are operated at the frequencies associated with the non-near-field communications circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic device, comprising:
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a first inverted-F antenna having a first antenna resonating element that includes a first antenna resonating element arm and a first return path coupling the first antenna resonating element arm to an antenna ground; a second inverted-F antenna having a second antenna resonating element that includes a second antenna resonating element arm and a return path coupling the second antenna resonating element arm to the antenna ground; and a band pass filter galvanically connected between the first antenna resonating element arm and the second antenna resonating element arm, wherein a portion of the first antenna resonating element, a portion of the second antenna resonating element, and the band pass filter form a conductive path associated with a third antenna resonating element for a third antenna. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An electronic device, comprising:
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non-near-field communications circuitry that operates at a non-near-field communications frequency; a first antenna having a first feed that is coupled to the non-near-field communications circuitry to handle non-near-field communications; a second antenna having a second feed that is coupled to the non-near-field communications circuitry to handle non-near-field communications; a band pass filter coupled between the first antenna and the second antenna; and near-field communications circuitry that operates at a near-field communications frequency, wherein the band pass filter forms a portion of a third antenna that is coupled to the near-field communications circuitry and configured to handle near-field communications. - View Dependent Claims (19, 20)
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Specification