Abstract: The invention relates to constructional details of the mounting of circuits on digital data carriers for the transfer of data, and more particularly relates to the structure of contactless smart cards.

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.

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 scaled casing.

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.