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Leakage coaxle with E-shaped radiation grooves external conductor and its making process

A manufacturing method and radiation slot technology, which can be used in cable/conductor manufacturing, coaxial cable/analog cable, railway car body parts, etc., and can solve problems such as performance to be improved.

Inactive Publication Date: 2007-06-06
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many types of leaky coaxial outer conductor radiation slots used in rail transit vehicle-to-ground communication, among which the effect is better: periodic "U"-shaped radiation slots and periodic positive and negative "7"-shaped radiation slots, But the performance needs to be improved

Method used

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  • Leakage coaxle with E-shaped radiation grooves external conductor and its making process
  • Leakage coaxle with E-shaped radiation grooves external conductor and its making process
  • Leakage coaxle with E-shaped radiation grooves external conductor and its making process

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Embodiment Construction

[0015] 1. According to the leakage coaxial size required by the user, the positive and negative E-shaped impact molds are manufactured.

[0016] 2. According to the leakage coaxial size required by the user, choose the corresponding copper strip (about 0.1mm thick) 1, use the above-mentioned positive and negative E-shaped impact die to roll out the periodic positive and negative E-shaped on the copper strip 1 Radiation tank 2.

[0017] 3. Manufacture the leaky coaxial physical foamed polyethylene insulator 4 containing the internal conductor 5 required by the user, and wrap the above-mentioned copper tape 1 with periodic positive and negative E-shaped radiation grooves 2 longitudinally on the insulator made to form the same Off-axis conductor 3.

[0018] 4. Extrude a 2.5mm thick polyethylene sheath 6 on the leaky coaxial outer conductor 3 to form a leaky coaxial outer conductor with periodic positive and negative E-shaped radiation grooves.

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Abstract

The present invention relates to one kind of coaxial leakage with outer conductor possessing both normal and reverse E-shaped radiation grooves and its making process. The copper belt used as the outer conductor is punched to form normal and reverse E-shaped periodical radiation grooves, and the copper belt is coated longitudinally to form coaxial leakage outer conductor. The coaxial leakage outer conductor has inner conductor with corresponding size, physically foamed polyethylene insulator layer and protective polyethylene layer. The coaxial leakage comprising the normal and reverse E-shaped radiation groove outer conductor has very small variation range of coupling loss to high speed moving antenna and thus high practical application value.

Description

technical field [0001] The invention relates to the technical field of rail transit vehicle-ground communication. Specifically, it is a leaky coaxial outer conductor with positive and negative E-shaped radiation grooves and a manufacturing method thereof, which is applied in high-speed railway vehicle-to-ground communication. Background technique [0002] At present, there are many types of leaky coaxial outer conductor radiation slots used in rail transit vehicle-to-ground communication, among which the effect is better: periodic "U"-shaped radiation slots and periodic positive and negative "7"-shaped radiation slots, But the performance needs to be improved. Contents of the invention [0003] The object of the present invention is to provide a coaxial outer conductor with positive and negative E-shaped radiation grooves, which is a new type of radiation groove coaxial outer conductor which is comparable to the "U" shape radiation grooves and has good performance. [00...

Claims

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Application Information

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IPC IPC(8): B61L1/18B61L23/00B61L25/02H01B11/18H01B13/22
Inventor 延凤平王均宏简水生曹继红陈勇
Owner BEIJING JIAOTONG UNIV