Chipless passive rfid tag

Abstract

A chipless RFID tag comprises a plurality of disjoint parallel conducting bands formed on a dielectric support, in which conducting bridges interlink neighboring conducting bands, the conducting bridges delimiting, between the conducting bands, portions of dielectric bands of distinct lengths, each portion of dielectric brand determining a resonant frequency of the tag, the set of resonant frequencies of the tag defining an identification code.

Description

technical field [0001] The invention relates to a tag capable of storing data remotely readable by an adapted reading terminal. More specifically, the present invention is directed to a remote identification technology using electromagnetic waves, now known as RFID (Radio Frequency Identification) in the prior art. Devices operating at frequencies in the range between 10 MHz and 10 THz are more specifically considered herein. Background technique [0002] Currently, data exchange systems in RFID technology are used to recognize and / or identify all types of objects with adapted tags at short or medium distances. [0003] figure 1 A remote identification system in RFID technology is very schematically shown, which system includes a reading terminal 1 and an identification tag (TAG) 3 . The reading terminal 1 comprises in particular an antenna, which is coupled to radio wave transceiver means. The tag 3 contains identification data and, when placed close to the reading term...

AI Technical Summary

Problems solved by technology

[0013] In addition, refer to figure 2 Coreless tags of the type described have a relatively low data storage capacity per unit surface area

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