FIELD: physics; radio.
SUBSTANCE: device (20) used in identification radio system and reporting counterfeit, is made from compacted metal powder (12) and label, which contains this device. The present invention is also related to antenna used in identification radio system, conducting part of which is made from compacted metal powder, and also to label that contains such antenna. The present invention is also related methods for indication of the fact that antenna used in identification radio system or label are counterfeit.
EFFECT: higher validity of identification.
79 cl, 10 dwg
