Carrier with antenna for radio frequency identification
First Claim
1. A structure for retaining a provided plurality of radio frequency identification devices in a common location, the structure comprising:
- a. a support that maintains the plurality at the common location; and
b. a circuit electrically isolated from the plurality, the circuit comprising a first antenna that re-radiates radio frequency energy for improving an operation of at least one of the radio frequency identification devices.
12 Assignments
0 Petitions
Accused Products
Abstract
A carrier, as used for example to transport several radio frequency identification devices, includes a circuit having an antenna and a series capacitor for tuning the antenna. Enhanced transceiver communication results when transceivers are placed in the carrier. Alternately, a carrier may include first and second antenna circuits, each having a capacitor for tuning the respective antenna. The two circuits may cooperate so that energy received in a first pattern is re-radiated in a second pattern for further enhanced transceiver communication, such as detection of the presence of the RFID device within the carrier.
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Citations
10 Claims
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1. A structure for retaining a provided plurality of radio frequency identification devices in a common location, the structure comprising:
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a. a support that maintains the plurality at the common location; and
b. a circuit electrically isolated from the plurality, the circuit comprising a first antenna that re-radiates radio frequency energy for improving an operation of at least one of the radio frequency identification devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
a. the radio frequency identification devices operate with respect to a frequency band; and
b. the resonant frequency is not within the band.
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7. The structure as in any one of claims 1-3 and 5-6 wherein the circuit further comprises a second antenna coupled to the first antenna for providing a combined antenna pattern.
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8. The structure of claim 1 wherein:
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a. a radio frequency identification device of the plurality has a second antenna; and
b. the first antenna cooperates with the second antenna to extend the communication range of the radio frequency identification device.
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9. The structure of claim 1 wherein the first antenna comprises a loop conductor.
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10. The structure as in any one of claims 1-3, 5-6 and 8-9 wherein:
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a. the structure comprises a plurality of planar surfaces; and
b. the circuit comprises an antenna portion mechanically coupled to each of the planar surfaces.
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Specification