| 摘要 |
<p>PROBLEM TO BE SOLVED: To enhance the coupling coefficient between the transmission/reception destination antenna of a non-contact signal transmitter.SOLUTION: A non-contact signal transmitter includes a magnetic material 1 having soft magnetism, a loop coil 2, and conductor plates 11a, 11b. The magnetic material 1 is arranged between the conductor plates 11a, 11b, and since a partial end face 101 of the magnetic material 1 is exposed from the end between the conductor plates 11a, 11b, the flux of a time variation magnetic field is concentrated on the partial end face 101. Consequently, when the loop coil 2 is superposed on the partial end face 101, the flux concentrated on the partial end face 101 entirely passes the inside of the coil 2, thus enhancing the coupling coefficient.</p> |
