RFID SYSTEM
1 Assignment
0 Petitions
Accused Products
Abstract
An RFID system includes an antenna of a reader/writer and an antenna of an RFID tag. Transmission and reception of a high-frequency signal of a UHF band is performed between the antenna of the reader/writer and the antenna of the RFID tag that are arranged so as to be adjacent to each other. A loop antenna including a loop conductor is used as the antenna of the reader/writer, and coil antennas including a plurality of laminated coil conductors are used as the antenna of an RFID tag. In addition, the conductor width of the loop conductor in the loop antenna is greater than the conductor widths of the coil conductors in the coil antennas.
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Citations
10 Claims
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1. (canceled)
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2. An RFID tag attached to a surface of an article comprising:
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an RFIC chip disposed on a power feeding substrate; and a coil antenna provided in the power feeding substrate that includes a plurality of laminated dielectric layers;
whereinthe RFIC chip is provided closer to the surface of the article than the coil antenna. - View Dependent Claims (3)
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4. An RFID system comprising:
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a handheld reader/writer including an antenna; and an RFID tag including an antenna attached to an article;
whereintransmission and/or reception of a high-frequency signal in a UHF band or an SHF band is performed between the antenna of the handheld reader/writer and the antenna of the RFID tag; the antenna of the handheld reader/writer is defined by an approximately one-turn loop antenna; and the RFID tag includes; an RFIC chip disposed on a power feeding substrate; and a coil antenna provided in the power feeding substrate that includes a plurality of laminated dielectric layers;
whereinthe RFIC chip is provided closer to a surface of the article than the coil antenna. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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Specification