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Radio-frequency cable assembly phase consistency assembling method

A technology of radio frequency cables and assembly methods, which is applied in the connection/disconnection of connecting devices, can solve the problems of time-consuming and error-prone, unfavorable mass production, etc., and achieve the effect of facilitating mass production and ensuring phase consistency

Inactive Publication Date: 2019-06-11
陈颖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing matching method is carried out through complex calculations, which is not only time-consuming and error-prone, but also not conducive to mass production

Method used

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  • Radio-frequency cable assembly phase consistency assembling method
  • Radio-frequency cable assembly phase consistency assembling method
  • Radio-frequency cable assembly phase consistency assembling method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The technical requirements for a certain type of RF cable assembly are as follows:

[0020] 1) The length of the RF cable assembly is 100mm;

[0021] 2) The working frequency range is 0~4GHz;

[0022] 3) Transmission loss ≤ 0.8dB;

[0023] 4)VSWR≤1.35;

[0024] 5) The insertion phase consistency between components is ≤±3.0°;

[0025] 6) Insertion loss consistency among components ≤±0.1dB.

[0026] Assembly steps:

[0027] Complete the assembly of the first RF cable assembly and use it as a reference to pass the VNA test.

[0028] Make the second cable assembly and complete the assembly of the connector on one end of the first RF cable assembly.

[0029] A single-channel test is performed by a vector network analyzer, and compared with the reference cable assembly (that is, the first RF cable assembly), the phase difference is 368.58°.

[0030] Calculated by formula:

[0031]

[0032] The length to be trimmed at the other end of the second cable assembly is: D...

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Abstract

The invention discloses a radio-frequency cable assembly phase consistency assembling method. The radio-frequency cable assembly phase consistency assembling method comprises the following steps: (1)assembling a first radio-frequency cable assembly, adopting the first radio-frequency cable assembly as a reference, and performing the test by using a vector network analyzer; (2) producing a secondradio-frequency cable assembly, and assembling one end of the second radio-frequency cable assembly and the first radio-frequency cable assembly by virtue of a connector; (3) performing the single-channel test by virtue of the vector network analyzer, comparing with the first radio-frequency cable assembly, and obtaining a phase difference; (4) trimming the other end of the second radio-frequencycable assembly, wherein the trimming coefficient is D; (5) calculating a trimming length Cmm, wherein C is equal to D multiplied by the phase difference; and (6) repeating the steps (2) to (5), and completing the assembling, test, calculation and trimming of other radio-frequency cable assemblies. According to the radio-frequency cable assembly phase consistency assembling method, by combining thecurrent processing and test technology of the radio-frequency cable assembly, the phase consistency of assemblies can be effectively ensured, the qualification rate of the phase consistency match iskept at more than 80 percent, and the mass production can be facilitated.

Description

technical field [0001] The invention relates to a method for assembling a radio frequency cable assembly, in particular to a method for assembling a radio frequency cable assembly with phase consistency, and belongs to the technical field of radio frequency cable assemblies. Background technique [0002] Radar has a special sensitivity to phase indicators, and the special sensitivity requires a certain degree of phase consistency between the cable components used, especially in phased array radar and electronic countermeasure matching systems. strict. [0003] Components need to have precise electrical lengths before assembly and during installation and commissioning during assembly. In order to ensure the consistency of the electrical length between components of each type, the components of each RF cable component must be matched during manufacture, installation and commissioning. This requires accurate cutting, installation and testing of the components, and matching th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R43/26
Inventor 陈颖郭海军沈能蛟
Owner 陈颖
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