| 摘要 |
An RFID(Radio Frequency ID) tag is provided to reduce eccentric gravity and realize stable communication without respect to a disc media structure. An RFID tag comprises an antenna(1), an IC chip(2) and a material. The RFID tag wirelessly transmits information recorded in an IC chip. A gravity center axis(4) of the RFID tag coincides with the center of an opening. The IC chip is connected to the antenna. A width of the antenna adjacent to an area to which an IC chip is connected is narrower than an antenna width of another area of the antenna.
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