Patent ID: 8308072

Claim:
A non-contact IC tag including an IC tag comprising a first insulating substrate, an IC chip fixed on one side of said first insulating substrate and a matching-circuit equipped dipole antenna electrically connected to said IC chip, and a first parasitic antenna and a second parasitic antenna spaced with a distance and fixed on the other side of said first insulating substrate, wherein said matching-circuit equipped dipole antenna has two antenna sections spaced with a distance, two connecting terminal sections each electrically connecting each of said two antenna sections to said IC chip, and a matching circuit section electrically connecting said two antenna sections to each other, and wherein (1-a) the projection images of said first parasitic antenna and said second parasitic antenna projected onto said one side of said first insulating substrate respectively overlap at least partially said two antenna sections of said matching-circuit equipped dipole antenna, (1-b) said first parasitic antenna and said second parasitic antenna are electrically connected to each other through a connected portion, and in addition, (1-c) the projection images of said first parasitic antenna, said second parasitic antenna, and said connected portion projected onto said one side of said first insulating substrate do not overlap said IC chip and said two connecting terminal sections of said matching-circuit equipped dipole antenna.