RFID tag set, RFID tag and RFID tag component

An RFID tag comprising:

• a first component having a tabular first base made of dielectric and a metal layer extending over one side of the first base;
• a second component having a sheet-like second base, a metal pattern provided on the second base and electrically connected to the metal layer of the first component to constitute a loop antenna, a circuit chip connected to the metal pattern which carries out a radio communication through the loop antenna, and an adhesive material layer which bonds the second base to the other side with respect to the one side of the first base;
• and
• a conductive component which electrically connects the metal layer of the first component and the metal pattern of the second component.

An RFID tag component bonded to a first component including a tabular first base made of dielectric and a metal layer extending over one side of the first base to constitute an RFID tag, comprising:

• a sheet-like second base;
• a metal pattern provided on the second base and electrically connected to the metal layer of the first component to constitute a loop antenna;
• a circuit chip connected to the metal pattern which carries out a radio communication through the loop antenna;
• and
• an adhesive material layer which bonds the second base to the other side with respect to the one side of the first base.