| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna module which can certainly combine electric power transmission and communication. <P>SOLUTION: An antenna module 10 comprises a first coil 11 and a resonance circuit including a second coil 12 and a capacitor 13 connected to the second coil 12, where an average outside dimension of the first coil 11 is not more than that of the second coil 12. The average outside dimension is defined as an average value of distance between the center of gravity of a coil and its outer shape. The first coil 11 is allocated so that the first coil 11 and the second coil 12 are at least partially overlapped. The spacing between the first coil 11 and the second coil 12 is 1/10 or less of the average outside dimension of the second coil 12. The coupling coefficient of between the first coil 11 and the second coil 12 is 0.5 or more. Thereby, the constitution described above makes it possible to certainly transmit/receive a signal in performing communication while enabling electric power transmission. <P>COPYRIGHT: (C)2012,JPO&INPIT |
