Wristbands having RFID circuits with non-overlapping antenna
AssigneeZebra Technologies Corporation
InventorsChad E. Tripp, Steven J. Vandercar
Life of this patent
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Abstract
A wristband has a flexible elongated body with an open state in which the wristband is capable of being positioned in a planar configuration and a closed state in which the wristband is wrapped in a loop. An RFID circuit is supported by the body and is positioned on the body such that the RFID circuit is configured to be included in the loop when the wristband is in the closed state. An elongated conductive element is supported by the body and is positioned on the body such that the elongated conductive element is configured to be included in the loop when the wristband is in the closed state. The elongated conductive element is spaced away from the RFID circuit and extends circumferentially about the loop in the closed state.
Claims19
A device, comprising:
- a wristband having a flexible elongated body, the wristband having an open state in which the wristband is capable of being positioned in a planar configuration and having a closed state in which the wristband is wrapped in a loop such that a first end of the wristband overlaps a second end of the wristband and is fixed to the flexible elongated body;
- and
- a radiofrequency identification (RFID) circuit supported by the flexible elongated body of the wristband, the RFID circuit being positioned on the flexible elongated body such that the RFID circuit is configured to be included in the loop when the wristband is in the closed state,
- the RFID circuit including a dipole antenna configured to be included in the loop when the wristband is in the closed state,
- the dipole antenna includes a first segment, a second segment, and a third segment, the first segment extends from the third segment towards the first end of the wristband to a first terminal end of the dipole antenna and the second segment extends from the third segment towards the second end of the wristband to a second terminal end of the dipole antenna such that the first segment and second segment extend circumferentially in a bypassing, radially non-overlapping arrangement about the loop when the wristband is in the closed state.
A device, comprising:
- a wristband having a flexible elongated body, the wristband having an open state in which the wristband is capable of being positioned in a planar configuration and having a closed state in which the wristband is wrapped in a loop such that a first end of the wristband overlaps a second end of the wristband and is fixed to the flexible elongated body;
- and
- a radiofrequency identification (RFID) circuit supported by the flexible elongated body of the wristband, the RFID circuit being positioned on the flexible elongated body such that the RFID circuit is configured to be included in the loop when the wristband is in the closed state,
- the RFID circuit including an antenna configured to be included in the loop when the wristband is in the closed state, the antenna extends circumferentially in a bypassing, radially non-overlapping arrangement about the loop when the wristband is in the closed state,
- wherein the RFID circuit includes an electronic circuit, an inductive loop operatively coupled to the electronic circuit, and the antenna operatively coupled to the inductive loop,
- wherein a portion of the antenna that overlays the inductive loop and coincides with a perimeter of the inductive loop.
Dependencies are inferred from the claim text.