Wireless antenna for RFID tires
First Claim
Patent Images
1. An RFID device comprising:
- (a) a first sheet of non-conductive material having an outwardly facing peripheral edge;
(b) an antenna member having a first antenna unit of conductive rubber engaged to said first sheet and a second antenna unit of conductive rubber engaged to said first sheet in spaced relationship with said first antenna member, the space between said first antenna unit and said second antenna unit defining a slot, said first antenna unit having an upper edge, a lower edge and an end edge, each of said edges spaced from the peripheral edge of said first sheet and said second antenna unit having an upper edge, a lower edge and an end edge, each of said edges being spaced from the peripheral edge of said first sheet;
(c) a microchip positioned in said slot and conductively engaged to said first antenna unit and to said second antenna unit;
(d) a non-conductive member encircling said antenna member and engaging the outwardly facing upper, lower and end edges of each said antenna unit, said non-conductive member having an internal extension positioned in said slot; and
(e) a second sheet of non-conductive material engaged to (i) said antenna and (ii) said encircling non-conductive member.
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Abstract
An RFID device for tires utilizes a wireless antenna. The antenna is formed of a pair of spaced apart electrically conductive rubber units. The conductive rubber antenna is encapsulated between a pair of non-conductive sheets. A third non-conductive member encircles the conductive rubber antenna and is itself sealed between the first and second sheets of non-conductive material. A microchip is positioned in the slot defined by the space between the units and conductively attached to each of the units.
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Citations
19 Claims
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1. An RFID device comprising:
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(a) a first sheet of non-conductive material having an outwardly facing peripheral edge; (b) an antenna member having a first antenna unit of conductive rubber engaged to said first sheet and a second antenna unit of conductive rubber engaged to said first sheet in spaced relationship with said first antenna member, the space between said first antenna unit and said second antenna unit defining a slot, said first antenna unit having an upper edge, a lower edge and an end edge, each of said edges spaced from the peripheral edge of said first sheet and said second antenna unit having an upper edge, a lower edge and an end edge, each of said edges being spaced from the peripheral edge of said first sheet; (c) a microchip positioned in said slot and conductively engaged to said first antenna unit and to said second antenna unit; (d) a non-conductive member encircling said antenna member and engaging the outwardly facing upper, lower and end edges of each said antenna unit, said non-conductive member having an internal extension positioned in said slot; and (e) a second sheet of non-conductive material engaged to (i) said antenna and (ii) said encircling non-conductive member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for forming an RFID device comprising the steps of:
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(a) providing a pair of electrically conductive rubber sheet units each having an upper edge, a lower edge and an end edge; (b) positioning said electrically conductive rubber sheet units in side-by-side spaced-apart relationship defining a slot therebetween; (c) encircling said upper edges;
lower edges and end edges with non-conductive material;(d) positioning a microchip in said slot; (e) electronically connecting said microchip to each of said pair of electrically conductive sheet units; and (f) fastening non-conductive material to opposite sides of said pair of electrically conductive sheet units and to said encircling non-conductive material. - View Dependent Claims (10, 11, 12, 13)
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14. A method for forming an RFID device comprising the steps of:
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(a) providing an antenna of electrically conductive rubber having first and second sheet units;
each of said units having an upper edge and a lower edge, and having a thickness in the range of 0.05 mm to 3 mm;(b) positioning said sheet units in spaced apart relationship, the space between said units defining a slot extending between said upper edges and said lower edges; (c) encircling said sheet units with non-conductive material having the same thickness as said units; (d) positioning a microchip in said slot; (e) electrically connecting said microchip to each of said units on opposite sides of said slot; and (f) fastening non-conductive material having a thickness in the range of 0.05 mm to 3 mm to opposite sides of said antenna and to said encircling non-conductive material. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification