Airborne early warning radar low-loss stable-phase cable and preparation method thereof

Abstract

The invention discloses an airborne early warning radar low-loss stable-phase cable, which comprises a conductor, an insulating layer, an outer conductor, a shielding layer and a sheath, and the conductor is formed by twisting a plurality of silver-plated soft round copper wires, the outer surface of the conductor is coated with the insulating layer, the outer surface of the insulating layer is coated with the outer conductor, and the outer conductor is a silver-plated copper flat belt wrapping the insulating layer; and the lapping rate of the lapped silver-plated copper flat belt is more than40%, the outer surface of the outer conductor is coated with a shielding layer, the shielding layer is formed by weaving silver-plated soft round copper wires, and the outer surface of the shieldinglayer is coated with a sheath. The invention further discloses a preparation method of the airborne early warning radar low-loss stable-phase cable, the prepared cable has the advantages of light product weight, good bending performance and elastic deformation recovery capability, the mechanical performance is obviously higher than that of a semi-flexible cable, the shielding effect is close to that of a semi-hard cable, and the phase stability and the information transmission safety performance in the signal transmission process are ensured.

Description

technical field [0001] The invention belongs to the technical field of cable manufacturing, and in particular relates to an airborne early warning radar low-loss phase-stable cable and a preparation method thereof. Background technique [0002] The early warning aircraft is the information hub and command center of the space-based early warning detection system. It integrates multiple functions such as early warning detection, intelligence fusion, intelligence distribution, and command and control. It is responsible for large-scale search, tracking, and identification of air, sea, and ground. And command and guide its own aircraft, ships and shore-based fire control systems to fight. Because the airborne early warning radar is installed on the high-altitude aircraft, it overcomes the limitation of the earth's curvature on the observation range, expands the low-altitude and ultra-low-altitude detection range, and finds farther enemy aircraft and missiles, providing more early...

AI Technical Summary

Problems solved by technology

Although the appearance of these cable structures has effectively improved the demand for high-frequency data transmission and the anti-interference ability of the cable, there are some shortcomings. The surface of the cable insulation layer is severely uneven, which causes the characteristic impedance of the cable to fluctuate greatly, which in turn affects the attenuation performance. Finally, the maintenance degree and detection accuracy of airborne radar will be reduced. Therefore, it is an extremely prominent problem to provide a low-loss and phase-stable cable for airborne early warning radar.

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