RFID tag having integral electrical bridge and method of assembling the same
First Claim
1. A radio frequency identification (RFID) tag comprising:
- a substrate;
a continuous antenna having a plurality of spiral turns and an end portion that is integral with the spiral turns, the spiral turns being disposed on the substrate and the end portion crossing over at least one of the spiral turns; and
an integrated circuit coupled to the substrate and electrically connected to the antenna.
1 Assignment
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Accused Products
Abstract
A radio frequency-identification (RFID) tag comprises a substrate, a single, continuous antenna having a plurality of spiral turns and end portions that are integral with the spiral turns, and an integrated circuit. The spiral turns are disposed on the substrate and at least one of the end portions crosses over at least some of the spiral turns. One end portion of the antenna is integrally connected to the innermost spiral turn and extends toward an outermost spiral turn to cross over at least some of the spiral turns. Another end portion of the antenna may be integrally connected to the outermost spiral turn and extend toward the innermost spiral turn to cross over at least some of the other spiral turns. The end portion(s) may cross over the spiral turns on the side of the substrate on which the spiral turns are disposed or on the opposite side.
80 Citations
30 Claims
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1. A radio frequency identification (RFID) tag comprising:
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a substrate;
a continuous antenna having a plurality of spiral turns and an end portion that is integral with the spiral turns, the spiral turns being disposed on the substrate and the end portion crossing over at least one of the spiral turns; and
an integrated circuit coupled to the substrate and electrically connected to the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A radio frequency identification (RFID) tag comprising:
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a substrate;
a continuous antenna including a plurality of spiral turns, a first end portion and a second end portion, the first and second end portions being integral with the spiral turns; and
an integrated circuit electrically connected to the antenna;
the spiral turns of the antenna being disposed on the substrate, the first end portion crossing over at least a first one of the spiral turns, and a second end portion crossing over at least a second one of the spiral turns. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method of making an RFID tag comprising:
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providing a substrate;
integrally forming a continuous antenna having a plurality of spiral turns and an end portion;
disposing the spiral turns on the substrate and folding the end portion of the antenna so that the end portion crosses over at least one of the spiral turns; and
connecting an integrated circuit to the antenna. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method making a radio frequency identification (RFID) tag comprising:
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providing a substrate;
integrally forming a continuous antenna having a plurality of spiral turns, a first end portion and a second end portion;
disposing the antenna on the substrate;
folding the first end portion so that the first end portion crosses over at least a first one of the spiral turns and folding the second end portion so that the second end portion crosses over at least a second one of the spiral turns; and
electrically connecting an integrated circuit to the antenna. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification