Welding type radio frequency coaxial-cable assembly

Abstract

The invention relates to a welding type radio frequency coaxial-cable assembly, comprising a connector inner conductor arranged in a connector outer conductor, a cable inner conductor and a cable outer conductor are electrically connected with the connector inner conductor and the connector outer conductor respectively, and an insulator is arranged between the cable inner conductor and the cable outer conductor. The welding type radio frequency coaxial-cable assembly is characterized in that: the cable inner conductor is arranged in an inner hole of the connector inner conductor, the cable outer conductor is arranged in the inner hole of the connector outer conductor, and the cable inner conductor and the cable outer conductor are respectively connected with the connector inner conductor and the connector outer conductor. In the invention, the voltage standing wave ratio is reduced to 1.06 from 1.1 and three-order intermodulation is reduced to -168dBc from -139dBc, thereby effectivelyensuring good, stable and reliable electrical connection, ensuring the stability of electrical property and greatly improving the indexes of the voltage standing wave ratio and the three-order intermodulation. By adopting the welding type, half of parts are reduced, the weight of the connectors is reduced by 48 percent, and material cost is greatly saved.

Description

technical field [0001] The invention relates to the improvement of a radio frequency coaxial cable assembly for mobile communication, in particular to a welded radio frequency coaxial cable assembly. Background technique [0002] The connection of RF coaxial cable to the connector, usually, such as figure 1 , 2 As shown, the inner conductor of the radio frequency coaxial cable is inserted into the inner conductor of the connector, the copper skin of the outer conductor of the radio frequency coaxial cable and the annular part of the outer conductor of the connector are clamped by screw force to realize the connection, the inner conductor of the radio frequency coaxial cable and the connector The connection of the inner wall of the inner conductor is usually in the form of an elastic plug connection. The elastic inner plug of the connector is usually a cylindrical slot. The plastic dielectric compresses it inward and makes close contact with the inner conductor of the cable...

AI Technical Summary

Problems solved by technology

For slotted parts, due to the opening of the slot, the characteristic impedance of the place changes, and the electrical performance is inevitably unstable, such as voltage standing wave ratio, third-order intermodulation index deviation, etc.; the copper skin of the outer conductor of the RF coaxial cable and the The ring-shaped parts of the outer conductor of the connector are connected by clamping by screw force. In order to ensure reliable contact, the clamping force can only be increased, so that the outer conductor will be deformed, resulting in high voltage standing wave ratio and third-order intermodulation. Indicators become worse, etc.; because parts with screw mechanisms are required, the number of parts used will be greatly increased, thereby increasing the overall weight of the jumper and increasing the manufacturing cost

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