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Long-distance radio frequency electronic identification tire structure

  • US 9,972,885 B2
  • Filed: 08/01/2017
  • Issued: 05/15/2018
  • Est. Priority Date: 08/18/2016
  • Status: Active Grant
First Claim
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1. A long-distance radio frequency electronic identification tire structure, comprising a main tire body with an ultra high frequency electronic tag, an outer surface of the main tire body being formed with a tire tread, each of two sides of the tire tread being formed with a tire shoulder and a tire sidewall;

  • the main tire body having a bead assembly composed of a tire bead bundle and a bead filler and including an airtight layer, a liner layer, a steel belt layer, and a cover layer arranged from inside to outside;

    the ultra high frequency electronic tag comprising a substrate sheet made of a flexible temperature-resistant insulating material, a far-field copper film antenna formed on a surface of the substrate sheet, and an antenna protective film made of a flexible temperature-resistant insulating material attached to a surface of the far-field copper film antenna;

    the far-field copper film antenna including a frequency band/bandwidth adjustment portion, a first field effect adjustment portion and a second field effect adjustment portion at two sides of the frequency band/bandwidth adjustment portion respectively;

    the frequency band/bandwidth adjustment portion having a rectangular perforation formed on a copper film to form a rectangular loop circuit, the rectangular loop circuit being electrically connected with a radio frequency identification chip;

    the first field effect adjustment portion being a square wave antenna electrically connected with the rectangular loop circuit and matched with the tire bead bundle and the steel belt layer of the main tire body and having a plurality of first field effect adjustment grooves;

    the second field effect adjustment portion being a square wave antenna electrically connected with the rectangular loop circuit and matched with the tire bead bundle and the steel belt layer of the main tire body and having a plurality of second field effect adjustment grooves each having a width less than that of the first field effect adjustment grooves.

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