To provide a non-contact IC tag in which both an original non-contact IC tag and a small-cut non-contact IC tag of resonate at a prescribed same frequency of a UHF band or microwave band.
In the non-contact IC tag 1, two dipole type plane antenna elements 41 and 42 which resonate at a radio wave of a prescribed frequency of a UHF band or a microwave band are connected to two or more antenna input terminals of an IC chip 3 having a diversity function, the IC chip 3 selects one plane antenna element having a higher signal input, a planned cut line 5 at a fixed position for cutting the two dipole type plane antenna elements is provided at a position adjacent to the IC chip 3, and a function of the plane antenna element 41 with no IC chip 3 is eliminated after cutting from the planned cut line 5.
COPYRIGHT: (C)2008,JPO&INPIT
Takuya Inoue
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Keiko Fukamachi
Hideo Ito
Hiromi Fujimasu
Naoki Goto