| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive small and lightweight antenna coil, capable of achieving resonance frequencies by shifting a position of a winding, in a simple configuration.SOLUTION: The antenna coil includes a bar-like core, and a winding that is composed of self fusion line and have a close winding layer that is wound around the core neatly to have a close line-to-line distance and a loose winding layer that is wound loosely to have a loose line-to-line distance. The winding is fused to be formed into one body, and the core is slidable. |
