发明名称 |
ANTENNA APPARATUS AND WIRELESS IC DEVICE |
摘要 |
<p>To constitute an antenna device in which characteristic fluctuations due to changes in the distance between a wireless IC device and a reader/writer are suppressed, and the wireless IC device which can perform communication with high reliability. In order to send/receive a wireless communication signal to/from an external device such as a reader/writer, an antenna resonant circuit (AR) is constituted by an antenna coil (La) and a capacitor (Ca), and an additional resonant circuit (LC1) is constituted by an inductor (L1) and a capacitor (C1). The additional resonant circuit (LC1) is connected to the antenna resonant circuit (AR), thereby constituting an antenna device (101). The antenna device (101) and a wireless IC (21) constitute a wireless IC device (201).</p> |
申请公布号 |
EP2207240(A1) |
申请公布日期 |
2010.07.14 |
申请号 |
EP20080865287 |
申请日期 |
2008.11.27 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
TANIGUCHI, KATSUMI;SASAKI, JUN;KATO, NOBORU |
分类号 |
G06K19/07;G06K19/077;H01Q1/38;H01Q7/00;H01Q23/00 |
主分类号 |
G06K19/07 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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