| 摘要 |
PROBLEM TO BE SOLVED: To surely operate an antenna even when the antenna is closely adhered to a metal-made object and the thickness of which is made thin. SOLUTION: The antenna 12 includes a coil formed with: an upper conductor part 23 formed to an upper surface of an upper insulation part 21; a lower conductor part 24 formed to a lower surface of a lower insulation part 22; and a through-hole 26 penetrated through the upper insulation part 21 and the lower insulation part 22 and electrically connecting the upper conductor part 23 and the lower conductor part 24. The coil is formed by winding a magnetic part 25 coated to the upper surface of the lower insulation part 22. Thus, even when the antenna 12 is closely attached to the metal-made object, the antenna 12 can normally be operated without being affected from the metal-made object. COPYRIGHT: (C)2005,JPO&NCIPI
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