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Large band inductive antenna for contactless communication systems

  • US 8,401,471 B2
  • Filed: 11/05/2008
  • Issued: 03/19/2013
  • Est. Priority Date: 11/05/2007
  • Status: Active Grant
First Claim
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1. A device for transmission of signals by contactless inductive coupling comprising at least one structure forming one or several antennas, said structure comprising a set of at least first and second pluralities of conducting links, each plurality of conducting links forming a conducting circuit through which a current may circulate,the conducting circuits being distinct such that the current circulating in each circuit may be different, the set of said conducting links being arranged such that there is a projection of the conducting links in the form of a first contour with a first shape, a second contour located inside the first contour and in the same plane and with a second shape homothetic with said first shape, and a plurality of segments connecting the first contour and the second contour.

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