Abstract: This invention is related to structures of contactless smart cards. The essence of this invention is in that it represents a device containing a microchip installed on a substrate, and an antenna, the leads of which are connected to the leads of the microchip, and a capacitor, connected in parallel to the frame antenna and forming together with the latter the antenna of the contactless smart card in the form of a resonance circuit, while the substrate represents a ring, the outer surface of which carries electrically conductive loops, which form the frame antenna and are coated with open-circuit screening foil, which is coated with a protecting coating that forms a hermetically sealed body. The device achieves the required technological result, related to improved service reliability.

Abstract: The invention relates to designs of contactless smart cards. The subject matter of the invention is a device comprising a microchip arranged on a substrate, a loop antenna, the pins of which are connected to pins of the microchip, and also a capacitor connected in parallel with the loop antenna and therewith forming an antenna of the device in the form of a resonant circuit, the substrate being in the form of a band wound into a ring and made of a flexible dielectric material, on the outer surface of which a strip of electrically conductive material is applied, forming the loop antenna, which together with the microchip is coated with a protective coating, forming a sealed casing.