| 摘要 |
PROBLEM TO BE SOLVED: To provide an RFID tag, a container fitted with the RFID tag, and an antenna device for the RFID tag in which the power consumption required for readout is reduced.SOLUTION: The RFID tag is pasted to a side face between the top and bottom of the container into which a liquid is poured and has an identification signal read out of it by a reader-writer, the RFID tag including: a loop-shaped first antenna having a first top end; a loop-shaped second antenna having a second top end disposed at a position lower than the first top end in the height direction of the container; and an IC chip connected to the first antenna and the second antenna, one of the first antenna and the second antenna being driven by a read signal received from the reader-writer, outputting the identification signal therefrom. |
