COAXIAL CABLE AND MANUFACTURING METHOD THEREFOR

PROBLEM TO BE SOLVED: To provide a coaxial cable and its manufacturing method, where a manufacturing workability in forming or the like of the outer conductor braid layer is superior, and where various types of electrical characteristics demanded for the coaxial cable are also superior in the coaxial cable, in which an insulating core is made, by winding the insulating lengthy body of an insulating tape or the like. SOLUTION: An insulating layer is formed by winding the insulating tape 120 on an inner conductor 11, and the insulating core is fabricated. Successively, as a means of squeezing the surface and carrying out smoothing treatment, a dice 2 is made to be passed of the insulating core, and local unevennesses of the surface of the insulating core and its periodic fluctuations of the outer diameter are corrected, in order to make its surface smooth. After that, the coaxial cable 1 is fabricated by covering the braided outer conductor 13 and an outer sheath 14.