| 摘要 |
In a communication medium used, for example, as an IC card or an IC tag, a metal plate is electrically connected to an antenna wire and embedded in a card base member together with the antenna wire. An IC module is also embedded in the card base member and electrically connected to the metal plate. A plurality of openings are formed in the metal plate to be opened on at least one of first and second principal surfaces defining a thickness direction of the metal plate.
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