| 摘要 |
PROBLEM TO BE SOLVED: To reduce the diameter of a coaxial cable of low attenuation. SOLUTION: The high frequency coaxial cable 1 comprises an inner conductor 3, an insulator 5 for coating an outer circumference of the inner conductor 3, and an outer conductor 7 of a welding seam pipe shape arranged on an outer circumference of the insulator 5. The insulator 5 is formed of PTFE resin of a burning degree having a dielectric loss tangent of 5-10×10<SP>-5</SP>(Ð1-10 GHz). The outer conductor 7 is corrugated. The PTFE resin with the burning degree as low as the dielectric loss tangent of 5-10×10<SP>-5</SP>(Ð1-10 GHz) can reduce the attenuation, and has a heat resisting property, and thus a manufacturing property is improved. As a result, the reduction of the diameter of the coaxial cable 1 can be achieved for obtaining the same attenuation. COPYRIGHT: (C)2005,JPO&NCIPI
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