Transponder configuration, tire including a transponder, and method of producing a tire having a transponder
First Claim
Patent Images
1. A transponder configuration, comprising:
- a transponder configured to be fitted in a location selected from the group consisting of a location in an article substantially formed of a rubber product and a location on a surface of an article substantially formed of a rubber product;
said transponder having a dipole antenna, said dipole antenna defining a calculated antenna length Lair for a case when only air is present as a transmission medium, the calculated antenna length Lair resulting from an equation Lair=0.5×
c/f, where c is a speed of light and f is a transmission frequency; and
said dipole antenna having an antenna length Lkp between 0.45×
Lair and 0.90×
Lair.
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Accused Products
Abstract
A transponder to be fitted in or on a surface of an article which is substantially formed of a rubber product, in particular a transponder to be fitted in a tire, has a dipole antenna. The antenna length Lair, wherein air is exclusively present as the transmission medium, is calculated with the equation Lair=0.5×c/f, wherein c is the speed of light and f is the transmission frequency. In order to achieve a long transmission range, the transponder in the rubber product has an antenna length Lkp between 0.45×Lair and 0.90×Lair, preferably substantially between 0.61×Lair and 0.71×Lair.
29 Citations
20 Claims
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1. A transponder configuration, comprising:
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a transponder configured to be fitted in a location selected from the group consisting of a location in an article substantially formed of a rubber product and a location on a surface of an article substantially formed of a rubber product;
said transponder having a dipole antenna, said dipole antenna defining a calculated antenna length Lair for a case when only air is present as a transmission medium, the calculated antenna length Lair resulting from an equation Lair=0.5×
c/f, where c is a speed of light and f is a transmission frequency; and
said dipole antenna having an antenna length Lkp between 0.45×
Lair and 0.90×
Lair. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A tire configuration, comprising:
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a tire having a surface;
a transponder disposed at a location selected from the group consisting of a location in said tire and a location on said surface of said tire;
said transponder having a dipole antenna, said dipole antenna defining a calculated antenna length Lair for a case when only air is present as a transmission medium, the calculated antenna length Lair resulting from an equation Lair=0.5×
c/f, where c is a speed of light and f is a transmission frequency; and
said dipole antenna having an antenna length Lkp between 0.45×
Lair and 0.90×
Lair. - View Dependent Claims (16, 17, 18, 19)
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20. A method of producing a tire configuration, the method which comprises:
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providing a transponder with a dipole antenna having an antenna length Lkp between 0.45×
Lair and 0.90×
Lair, with Lair being a calculated antenna length for a case when only air is present as a transmission medium, the calculated antenna length Lair resulting from an equation Lair=0.5×
c/f, where c is a speed of light and f is a transmission frequency; and
disposing the transponder in an apex region of a tire when building the tire on an apexing machine.
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Specification