A Low System Loss Radiation Leaky Cable

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 ...

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

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