Electromagnetic label without chip for identification compatible one-dimensional bar codes and coding process, manufacturing and reading

摘要

Electromagnetic chipless tag for identification comprising at least one printed multiconductora structure on a dielectric support for the identification of one-dimensional substrate. Encoding said label comprises defining the resonance frequency of multiconductoras structures that replace digit barcode. Making said label comprises defining the widths of the conductors of the multiconductora structure and separation distances therebetween according to standard corresponding bar code (310, 311); and selecting and substituting the corresponding digits in the bar code by printing multiconductoras structures (320a, 320b, 320c). Reading said label involves the use of a transmission line placed near the label, said line moving longitudinally along the label to carry out a reading of the electromagnetic field coupling.