A Low System Loss Radiation Leaky Cable

A leaky cable, radiation type technology, applied in circuits, electrical components, waveguide-type devices, etc., can solve the problems of affecting signal switching, field strength instability, affecting effects, etc., to improve field strength stability and optimize system loss. performance, error prevention effect

Active Publication Date: 2021-09-17
ZHONGTIAN RADIO FREQUENCY CABLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing segmented coupling leaky cable products adopt the form of setting up two or more slot groups along the line, that is, the direct combination of multiple slot groups, and each segment of the slot group follows the leakage cable when it exists alone. performance, which leads to signal mutation phenomenon prone to occur at the subsection (that is, the combination of slots), resulting in instability of field strength, which will affect signal switching in severe cases
In addition, the existing segmented coupling leakage cable products are directional, which may be reversed during construction and installation, affecting the effect

Method used

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  • A Low System Loss Radiation Leaky Cable
  • A Low System Loss Radiation Leaky Cable
  • A Low System Loss Radiation Leaky Cable

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] Such as figure 1 As shown, the outer conductor of a radiation-type leaky cable with low system loss in the present application is divided into different slot sections according to the opening of the slots. Every two adjacent slot sections form a group, and each group of slot sections It includes a first slot section 10 and a second slot section 20, and the first slot section 10 and the second slot section 20 are arranged along a direction away from the signal source. There is a transition section 30 with slots between the first slotted hole section 10 and the second slotted hole section 20 . Due to the different types of slots provided in the first slot section 10 and the second slot section 20 , the system loss performance is different, that is, the transmission attenuation constant and the coupling loss performance are different. Compared with the second slot section 10, the attenuation constant of the first slot section 10 is smaller, and the coupling loss is larger...

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Abstract

The invention discloses a radiation-type leaky cable with low system loss, which has at least two slot sections arranged in sequence, the leaky cable system loss performance of the adjacent slot sections is different, and a transition section is set between the adjacent slot sections, The loss performance of the leaky cable system in the transition section is close to the loss performance of the leaky cable system in the adjacent slot section at the same time, which improves the signal mutation phenomenon and improves the field strength stability. The slot section and the transition section on the low system loss radiation type leakage cable are symmetrically arranged, and the low system loss radiation type leakage cable does not need to distinguish directions during installation, which is convenient for installation.

Description

technical field [0001] The invention relates to the technical field of wireless communication, and more precisely relates to a radiation-type leaky cable with low system loss. Background technique [0002] Leaky coaxial cables, usually referred to simply as leaky cables or leaky cables or leaky cables, are composed of four parts: an inner conductor, an insulating medium, an outer conductor with periodic slots, and a sheath layer. Leaky cable is a high-frequency transmission line that integrates signal transmission, emission and reception. It is widely used in places with weak radio wave signals such as subways, high-speed rails, underground shopping malls, parking lots, and indoors. With the continuous development of 5G communication, the frequency of wireless signal transmission is getting higher and higher, and the penetration loss of electromagnetic waves is also increasing sharply. Especially for 5G coverage of high-speed rail, the vehicle body penetration loss is more ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P3/06
CPCH01P3/06
Inventor 赵瑞静林垄龙许波华蓝燕锐王斌缪艳华欧东东徐宗铭
Owner ZHONGTIAN RADIO FREQUENCY CABLE CO LTD
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