发明名称 |
SIGNAL PROCESSING CIRCUIT AND ANTENNA APPARATUS |
摘要 |
To form a signal processing circuit and an antenna apparatus that do not need a circuit for adjusting the resonant frequency of a resonant circuit or resonant-frequency adjustment work and that are downsized. An antenna coil (AL) and a capacitor (CO) form an antenna resonant circuit (AR). An impedance matching circuit composed of capacitors (C1, C2, C3), a first coil (L1), and a second coil (L2) is provided between the antenna resonant circuit (AR) and a wireless IC (11). The first coil (L1) and the second coil (L2) are magnetically coupled. |
申请公布号 |
EP2408063(A4) |
申请公布日期 |
2017.03.22 |
申请号 |
EP20100750930 |
申请日期 |
2010.03.12 |
申请人 |
Murata Manufacturing Co., Ltd. |
发明人 |
TANIGUCHI Katsumi;KATO Noboru |
分类号 |
H01Q1/50;G06K7/00;G06K17/00;H01Q7/00;H01Q9/27;H01Q11/08;H04B5/00;H04B5/02 |
主分类号 |
H01Q1/50 |
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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