| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a communication device which has a wide communication bandwidth, highly-confidential communication information, and can easily perform proximity communications, and a system using the device. Ž<P>SOLUTION: A communication device has a feed portion, an antenna device including a loop-like antenna element connected to the feed portion and a resistor included in a part of the loop of the antenna element, and a communication circuit processing data transmitted/received through the antenna device. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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