The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2006
Filed:
May. 29, 2003
Wolfgang Strache, Hannover, DE;
Holger Behrends, Hannover, DE;
Carla Recker, Hannover, DE;
Rainer Baumgarten, Wietzendorf, DE;
Andreas Wulf, Auhagen, DE;
Roland Jenke, Hademstorf, DE;
Sadettin Fidan, Garbsen, DE;
Olaf Campsheide, Neinburg, DE;
Wolfgang Strache, Hannover, DE;
Holger Behrends, Hannover, DE;
Carla Recker, Hannover, DE;
Rainer Baumgarten, Wietzendorf, DE;
Andreas Wulf, Auhagen, DE;
Roland Jenke, Hademstorf, DE;
Sadettin Fidan, Garbsen, DE;
Olaf Campsheide, Neinburg, DE;
Continental Aktiengesellschaft, Hannover, DE;
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 L, wherein air is exclusively present as the transmission medium, is calculated with the equation L=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 Lbetween 0.45×Land 0.90×L, preferably substantially between 0.61×Land 0.71×L.