RFID tag, article including RFID tag, and method of manufacturing article
An RFID tag 10 attachable to an article in use that includes an RFIC module including an RFIC chip and a helical coil connected to the RFIC chip, and an antenna member that is a threadlike conductor having a portion helically wound on the RFIC module around a winding axis extending parallel to an extending direction of a coil axis of the helical coil.
1. An RFID tag comprising:
an RFIC module that includes an RFIC chip and a helical coil coupled to the RFIC chip; and
an antenna member comprising a threadlike conductor having a first portion helically wound on the RFIC module and around a winding axis that extends parallel to a longitudinal direction of a coil axis of the helical coil,
wherein the RFIC module includes an insulating element body, and the RFIC chip and the helical coil are disposed in the insulating element body.
2. The RFID tag according to claim 1 , wherein the first portion of the threadlike conductor of the antenna member is wound on the insulating element body.
3. The RFID tag according to claim 1 , wherein the RFIC module comprises a printed wiring board with a principal surface extending parallel to the longitudinal direction.
4. The RFID tag according to claim 3 , wherein the winding axis of the antenna member extends parallel to the principal surface of the printed wiring board.
5. The RFID tag according to claim 3 , wherein the helical coil comprises first and second helical coils disposed on the principal surface of the printed wiring board.
6. The RFID tag according to claim 5 , wherein the RFIC chip is disposed in a center of the principal surface of the printed wiring board and coupled between the first and second helical coils.
7. The RFID tag according to claim 1 , wherein the threadlike conductor of the antenna member further comprises a second portion configured to be sewn to an article.
8. The RFID tag according to claim 1 , wherein the first portion of the threadlike conductor has a coil axis that extends parallel to a coil axis of the helical coil.
9. An RFID tag comprising:
an RFIC module that includes an RFIC chip and a helical coil coupled to the RFIC chip;
an antenna member comprising a threadlike conductor having a first portion helically wound on the RFIC module and around a winding axis that extends parallel to a longitudinal direction of a coil axis of the helical coil; and
a spool-shaped member housing the RFIC module and having the antenna member wound there around,
wherein the spool-shaped member has first and second ends each provided with a thread retaining part configured to fix the antenna member to the spool-shaped member.
10. An article comprising:
a cloth material; and
an RFID tag that includes:
an RFIC module having an RFIC chip and a helical coil coupled to the RFIC chip, and
an antenna member comprising a threadlike conductor having a first portion helically wound on the RFIC module around a winding axis that extends parallel to a longitudinal direction of a coil axis of the helical coil and a second portion sewn to the cloth material of the article,
wherein the RFIC module includes an insulating element body, and the RFIC chip and the helical coil are disposed in the insulating element body with the first portion of the threadlike conductor wound on the insulating element body.
11. The article according to claim 10 ,
wherein the RFIC module comprises a printed wiring board with a principal surface extending parallel to the longitudinal direction, and
wherein the winding axis of the antenna member extends parallel to the principal surface of the printed wiring board.
12. The article according to claim 11 , wherein the helical coil comprises first and second helical coils disposed on the principal surface of the printed wiring board.
13. The article according to claim 12 , wherein the RFIC chip is disposed in a center of the principal surface of the printed wiring board and coupled between the first and second helical coils.
14. The article according to claim 10 , wherein the first portion of the threadlike conductor has a coil axis that extends parallel to a coil axis of the helical coil.
15. An article comprising:
a cloth material; and
an RFID tag that includes:
an RFIC module having an RFIC chip and a helical coil coupled to the RFIC chip,
an antenna member comprising a threadlike conductor having a first portion helically wound on the RFIC module around a winding axis that extends parallel to a longitudinal direction of a coil axis of the helical coil and a second portion sewn to the cloth material of the article, and
a spool-shaped member housing the RFIC module and having the antenna member wound there around,
wherein the spool-shaped member has first and second ends each provided with a thread retaining part configured to fix the antenna member to the spool-shaped member.
16. A method of manufacturing an article having an RFID tag, comprising:
helically winding a first portion of an antenna member comprising a threadlike conductor on an RFIC module that includes an RFIC chip and a helical coil connected to the RFIC chip around a winding axis that extends parallel to a longitudinal direction of a coil axis of the helical coil;
forming an insulating element body for the RFIC module, such that the RFIC chip and the helical coil are disposed in the insulating element body; and
sewing a second portion of the antenna member to the article.
17. The method according to claim 16 , further comprising winding the first portion of the threadlike conductor of the antenna member on the insulating element body.