Antennas for compact portable wireless devices
First Claim
1. A compact portable wireless device comprising:
- a housing formed substantially from dielectric;
a printed circuit board comprising a planar antenna ground structure and circuit interconnects;
electrical components mounted to the printed circuit board;
an inverted-F antenna resonating element mounted to the printed circuit board, wherein the inverted-F antenna resonating element has a main structure formed from a strip of conductor, has a ground leg that is connected to the planar antenna ground structure, and has a feed leg and wherein the ground leg is perpendicular to the planar antenna ground structure; and
a parasitic antenna element that is separated from the planar antenna ground structure by a gap.
2 Assignments
0 Petitions
Accused Products
Abstract
Compact portable wireless devices and antennas for compact portable wireless devices are provided. The compact portable wireless device may be part of a piece of sports equipment. A compact portable wireless device may include a transceiver module that is used in communicating with equipment such as a handheld electronic device. An antenna for a compact portable wireless device can have a relatively small size while exhibiting high efficiency. A planar ground structure for the antenna may be formed from a circuit board on which integrated circuits have been mounted. A curved inverted-F resonating element may be attached to the ground structure. A battery may be provided to power the compact portable wireless device. The battery may be used as a parasitic antenna element.
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Citations
30 Claims
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1. A compact portable wireless device comprising:
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a housing formed substantially from dielectric; a printed circuit board comprising a planar antenna ground structure and circuit interconnects; electrical components mounted to the printed circuit board; an inverted-F antenna resonating element mounted to the printed circuit board, wherein the inverted-F antenna resonating element has a main structure formed from a strip of conductor, has a ground leg that is connected to the planar antenna ground structure, and has a feed leg and wherein the ground leg is perpendicular to the planar antenna ground structure; and a parasitic antenna element that is separated from the planar antenna ground structure by a gap. - View Dependent Claims (2, 3, 4, 5)
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6. A compact portable wireless device that transmits wireless data from within an athletic shoe to a handheld electronic device, comprising:
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an antenna comprising an F-shaped resonating element having a feed arm, a ground arm, and a main structure, a planar ground structure to which the ground arm of the F-shaped resonating element is connected, and a planar parasitic element that is separated from the planar ground structure by a gap and that is near-field coupled to the planar ground structure; a sensor that senses footsteps when a runner is running while wearing the shoe; and circuitry that transmits signals from the sensor through the antenna. - View Dependent Claims (7, 8, 9, 10)
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11. A compact portable wireless device antenna comprising:
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a printed circuit board that forms a planar ground structure; an F-shaped resonating element having a feed arm, a ground arm, and a main structure formed from a strip of conductor, wherein the ground arm of the F-shaped resonating element is connected to the planar ground structure, and wherein the feed arm and ground arm are perpendicular to the planar ground structure; and a planar parasitic element that is separated from the planar ground structure by a gap, wherein the planar parasitic element and the planar ground structure lie in a common plane. - View Dependent Claims (12, 13, 14, 15)
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16. An antenna, comprising:
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a planar ground structure formed from at least one layer of a multilayer printed circuit board; an inverted-F resonating element having a main structure that is formed from a strip of conductor that is between 1.0 and 3.0 millimeters in width and having a feed arm and a ground arm, wherein the main structure is parallel to the planar ground structure and wherein the feed arm and the ground arm are perpendicular to the planar ground structure; a battery with a conductive case that forms a parasitic antenna element, wherein the battery and the planar ground structure are separated by a gap of between 0.5 and 2 millimeters. - View Dependent Claims (17, 18, 19, 20)
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21. An antenna in a compact portable wireless device in a piece of sports equipment, comprising:
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a planar ground structure; an inverted-F resonating element having a main structure formed of a semicircular curved strip of metal that is less than 3.0 millimeters in width and having a feed arm and a ground arm, wherein the main structure is parallel to the planar ground structure, wherein the feed arm and the ground arm are perpendicular to the planar ground structure, and wherein the ground arm is electrically connected to the planar ground structure; and a circular parasitic antenna element that is coplanar with the planar ground structure and that is separated from the planar ground structure by a gap. - View Dependent Claims (22, 23, 24, 25)
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26. A system comprising:
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a handheld electronic device; and a compact portable wireless device comprising; a dielectric housing having a first housing portion and a second housing portion; a printed circuit board that is mounted within the housing, wherein the printed circuit board has a plurality of layers, wherein at least one of the layers is used to form a planar antenna ground structure; an inverted-F resonating element having a main structure formed of a semicircular curved strip of metal that is less than 3.0 millimeters in width and having a feed arm and a ground arm, wherein the main structure is parallel to the planar ground structure, wherein the feed arm and the ground arm are perpendicular to the planar ground structure, and wherein the ground arm is electrically connected to the planar ground structure; and a circular parasitic antenna element that is coplanar with the planar ground structure and that is separated from the planar ground structure by a gap. - View Dependent Claims (27, 28, 29, 30)
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Specification