US 12,307,313 B2
IC tag
Toshiharu Shimai, Yamatokooriyama (JP); and Hirofumi Tsujimoto, Yamatokooriyama (JP)
Assigned to NITTA CORPORATION, Osaka (JP)
Appl. No. 16/959,840
Filed by NITTA CORPORATION, Osaka (JP)
PCT Filed Dec. 27, 2018, PCT No. PCT/JP2018/048003
§ 371(c)(1), (2) Date Jul. 2, 2020,
PCT Pub. No. WO2019/135381, PCT Pub. Date Jul. 11, 2019.
Claims priority of application No. 2018-000866 (JP), filed on Jan. 5, 2018.
Prior Publication US 2020/0372314 A1, Nov. 26, 2020
Int. Cl. G06K 19/07 (2006.01); G06K 19/02 (2006.01); G06K 19/077 (2006.01); H01Q 1/40 (2006.01)
CPC G06K 19/077 (2013.01) [G06K 19/02 (2013.01); H01Q 1/40 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An IC tag comprising:
an IC chip;
a dipole antenna for electrically transmitting and receiving information stored in the IC chip, said dipole antenna being continuous at the IC chip; and
a sheet-shaped substrate that supports the IC chip and the dipole antenna,
wherein the dipole antenna includes:
an impedance matching portion disposed at the IC chip location; and
a pair of dipole portions extending from the impedance matching portion,
wherein 0.1≤R/L(Ω/cm)≤2.5 is satisfied, where R is a resistance value between two ends of the dipole antenna and L is a length of a path that connects the two ends of the dipole antenna while extending along the dipole antenna without passing through the IC chip.