| 摘要 |
PROBLEM TO BE SOLVED: To provide an economical method which can easily and efficiently manufacture a sheet type antenna coil, reduce the cost, and finish the coil with thin thickness. SOLUTION: The antenna coil is manufactured by forming a spiral coil by winding a conductor spirally around a plane. A winding start end part 3A of a beltlike conductor 3 having its surface coated 4 with a nonconductor is fixed to a nonconductive core material 2 by adhesion or insertion and then rolled; and the nonconductive core material 2 and beltlike conductor 3 are heated and adhered in one body to form a rolled antenna raw material 6, which is sliced in the crossing direction to form sheet type antenna coils 1 having specific spiral coils. |
