| 摘要 |
<P>PROBLEM TO BE SOLVED: To heighten the transmission efficiency of a resonator and also make it reducible in weight. <P>SOLUTION: A magnetic substance core includes first and second magnetic substance core blocks which are disposed leaving a space from each other. A coil is wound round the magnetic substance core in the short direction of the first and second magnetic substance core blocks. The first magnetic substance core block includes a first part and a second part on both sides of the first part along the longer direction of the first magnetic substance core block, in which the cross section area of the first part in a direction intersecting the longer direction at right angles is larger than that of the second part. The second magnetic substance core block includes a third part and a fourth part on both sides of the third part along the longer direction of the second magnetic substance core block, in which the cross section area of the third part in a direction intersecting the longer direction at right angles is larger than that of the fourth part. A section of the magnetic substance core around which the coil is wound consists of the first part of the first magnetic substance core block and the third part of the second magnetic substance core block. <P>COPYRIGHT: (C)2013,JPO&INPIT |
