Superflexible high-mechanical RF (radio-frequency) coaxial cable with stable amplitude and stable phase

• Main Author: LI TONGFU
• Format: Patent
• Language: English
• Published: 27.05.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE; WAVEGUIDES

The invention discloses a superflexible high-mechanical RF (radio-frequency) coaxial cable with the stable amplitude and the stable phase. The coaxial cable comprises a stranded center conductor, a dielectric layer, an inner shielding layer, an outer shielding layer and an outer sheath layer which are sequentially designed from inside to outside, wherein the dielectric layer is wrapped with the inner shielding layer; the outer shielding layer is wrapped with the outer sheath layer; the cable further comprises a conductor protection layer arranged between the stranded center conductor and the dielectric layer as well as an inner shielding protection layer located between the inner shielding layer and the outer shielding layer. The conductor protection layer is arranged, so that a pitch of the stranded center conductor cannot loose in the bending process of the cable, the bending times of the cable are increased, and the service life of the cable is prolonged; secondly, the inner shielding protection layer is arranged, so that when the cable is bent, the inner shielding layer does not loose and does not generate displacement with the dielectric layer, the bending times of the cable are further increased, and the service life of the cable is further prolonged; finally, the dielectric layer is made of an LD-PTFE (low density- polytetrafluoroethylene) material, so that the cable still has higher temperature phase-stabilizing performance in the working environment at the temperature ranging from subzero 45 DEG C to 85 DEG C.