Antennas for compact portable wireless devices
First Claim
1. A compact portable wireless device that transmits wireless data from within an athletic shoe to a handheld electronic device, comprising:
- 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.
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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
7 Claims
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1. 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 (2, 3, 4, 5, 6, 7)
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Specification