| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna element 10 which is easily manufactured with little variations in antenna characteristics. SOLUTION: A linear and short first linear part 14, a helical first coil 16 in which the number of winding is set to substantially 1 turn or 1 turn or less, a linear and long second linear part 18, and a helical second coil 20 which has the same winding diameter and the same pitch with the first coil 16 and has the greater number of winding than the first coil 16 are sequentially formed axially with a piece of conductive wire 12 directing from a proximal end to a distal end, to constitute an antenna element 10. |
