Waveguide leaky cable used for 5G communication

Abstract

The invention discloses a waveguide leaky cable used for 5G communication. The waveguide leaky cable comprises a conductor and an outer sheath, wherein the outer sheath is arranged on the outer layerof the conductor; a slotted hole marker line is arranged outside the outer sheath; the conductor is a welded or seamlessly embossed metal tube and is formed into an elliptical structure through a forming technology, and a leaky slotted hole used for wireless signal transmission is formed in the metal tube; the leaky slotted hole is formed in the opposite side of the slotted hole marker line; and different colors of colored tapes are added on the surface of a sheath on the side of a slotted hole according to requirements. According to the waveguide leaky cable disclosed by the invention, an inner conductor and a filing medium are removed, the transmission loss of electromagnetic waves is reduced, simultaneously, the effect of internal tension is considered, the cross sectional dimensions are changed, and structure bending also can cause the change of polarization direction of a dominant mode; the waveguide leaky cable product is of an elliptical forming technology, the product is deformed into an elliptic cylinder, the cross sectional area remains unchanged, the electromagnetic waves are split into even form and odd form and are of fixed polarization directions, and a transverse electric field, inside a cylinder, of the dominant mode is parallel to a minor axis of an ellipse, so that the loss is further reduced.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a waveguide leaky cable for 5G communication. Background technique [0002] At present, leaky coaxial cables are mainly composed of four parts: inner conductor, insulating layer, outer conductor with slots and sheath, and are mainly used in tunnels, tunnels, underground railways, underground buildings and other environments where radio signals are poorly propagated, and the frequency of use is general. For frequencies below 3GHz. With the increase of transmission frequency, limited by the structure of the coaxial waveguide itself, the loss of the inner conductor of the leaky coaxial cable and its filling medium also increases accordingly, resulting in an increase in the transmission loss of the leaky coaxial cable, and at the same time limited by the structure, the power The capacity also decreases, so it is not suitable for high-frequency communication such as 5G communica...

AI Technical Summary

Problems solved by technology

With the increase of transmission frequency, limited by the structure of the coaxial waveguide itself, the loss of the inner conductor of the leaky coaxial cable and its filling medium also increases accordingly, resulting in an increase in the transmission loss of the leaky coaxial cable, and at the same time limited by the structure, the power The capacity also decreases, so it is not suitable for high-frequency communication such as 5G communication

[0003] For high-frequency wireless communications such as 5G, the leaky waveguide (or slot waveguide) formed by slits on the metal waveguide wall is a relatively mature product, but due to the limitation of the processing technology of the traditional leaky waveguide, only a few meters can be produced each time. , and the bending performance is poor, the assembly is relatively complicated and the waveguide interface is easy to introduce loss, and there are obvious defects in construction and transportation

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