| 摘要 |
PURPOSE:To provide a producing method which easily obtains a helical antenna for satellite communication having high quality for which a completed helical coil is free from partial bending parts or the like even in the case of conductors made of much flexible materials. CONSTITUTION:A spool 10 is prepared for which each supporting member 12 is crosswise protruded on the outer periphery of a bar-shaped base body 11 and wedge part pieces 71 to 74 in a quadripartite state are arranged along its axial center between supporting members 12a, 12b, 12c, and 12d, and conductors are spirally wound along groove groups 13a, 13b... for conductor guide of supporting members 12a, 12b, 12c, and 12d with cylindrical surfaces of wedge part pieces 71 to 74 as guide faces for winding to form a helical coil 20, thereafter, wedge part pieces 71 to 74 are pulled out from between the helical coil 20 and the spool 10, thereby forming an antenna element part of the helical antenna for satellite communication. |
