Single-end phase correction method for phase distribution cable assembly

Abstract

The invention relates to a single-end phase correction method for a phase distribution cable. The method comprises the steps that the length delta L of a core wire needing to be sheared is calculated according to a tested phase difference value; performing wire repairing processing on the open-circuit end of the cable assembly, performing real-time test and correction without dismounting the cable assembly, and observing the phase value of the single-end cable assembly in the vector network analyzer until the phase value meets the requirement; if the tested cable exceeds the phase parameter value, the length of a core wire needing to be compensated is calculated, and a compensation identifier is marked; performing head stripping on the other end of the cable assembly, if the compensation identifier exists, adjusting head stripping compensation parameters, and installing a connector on the other end of the cable assembly at the same time; and performing double-end phase inspection test on the same batch of cable assemblies one by one, and correcting very few cables exceeding the phase parameter value requirement. The method has the advantages that the links of repeatedly assembling and disassembling the connector and the contact pin, cutting the core wire, removing residual soldering tin in the connector and the like are avoided, the assembly cost of the assembly is saved, and the assembly welding quality is improved.

Description

technical field [0001] The invention relates to the technical field of radio frequency cable assembly and testing, in particular to a single-end phase correction method for matching cable assembly. Background technique [0002] At present, in order to ensure the consistency of the electrical length of the radio frequency cable assembly, the method of double-end phase matching is generally used for cable assembly and testing, which mainly includes: (1) Connecting the connectors at both ends of the cable that need to be assembled in the same batch ;(2) test to determine the reference cable and normalize it, usually the cable with the shortest electrical length is used as the reference cable; (3) compare the phase of the tested cable with the reference cable, and record the phase difference; (4) disassemble one end Connector, calculate the length of the core wire to be cut according to the phase difference and process it, and then install the connector after completion; (5) Rep...

AI Technical Summary

Problems solved by technology

[0003] However, the problems existing in the prior art are as follows: (1) The phase change of the component cannot be grasped in the core wire processing link of the phase matching of the cable assembly, and it is difficult to avoid the need for multiple core wire processing, connector installation, phase testing and other work; ( 2) Assemblers do a lot of repetitive assembly and testing work in the matching process, which brings a large increase in time cost and personnel cost; (3) It is difficult to avoid multiple welding processes on the connector ferrule and bushing, which will The weldability of the welded parts is poor, which affects the overall reliability of the cable assembly; (4) when the cable assembly works at a high frequency, the difficulty of matching and assembling according to the existing method is multiplied, and it is easy to cause the cable Scrapping of components or inability to complete matching cable assembly, etc.

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