Phoenix Solution Co., Ltd.

Hayato Nabeshima

Shiro Sugimura

Tatsuji Niwata

There is provided an RF tag that can be mounted in a cavity of a member formed of a conductor having the cavity therein, and has high communication performance. An RF tagof the present invention is an RF tag that is mounted in a cavityof a conductor-made memberhaving the cavitytherein, and includes at least a free space antennaa resonance circuitan IC chipa closed space antennaand a substratefor supporting the closed space antenna, a portion of the free space antenna is exposed from the cavity to the outside, and the substrate supports the closed space antenna so that the closed space antenna is not in contact with the inner surface of the conductor-made member. The closed space antenna, the substrate and the conductor-made member forms a capacitor portion C

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Kanazawa, Japan

Hayato Nabeshima