Adaptive coupler for reactive near field RFID communication

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United States of America Patent

PATENT NO 9917476
SERIAL NO

14402662

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Abstract

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An adaptive near field electromagnetic coupler for coupling electromagnetic power to a plane metallic trace (inlay) independently of the inlay geometry and/or orientation without external control algorithms. This is achieved by employing a microstructure of phase altering elements suitable for creating a constant phase field distribution along a top surface of the coupler structure. This is advantageously applicable to printing devices having a function of encoding RFID layers printed on a medium. In view of the provided flexibility, the coupler arrangement can be employed in a variety of printers of different mechanical design.

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Patent Owner(s)

  • SATO HOLDINGS KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Frank, Markus Stråvalla, SE 59 868
Hedberg, Mats Tokyo, JP 27 474

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