Vacuum tube flying train communication system directly covering the leaky wave system with electromagnetic medium

Abstract

The invention provides a vacuum tube flying train communication system with an electromagnetic medium directly covering a leaky wave system, comprising a leaky wave device and an electromagnetic lens;The leakage wave device is installed on the upper side of the inner wall of the vacuum tube flying train pipe, adopts the slotted form of wide side transverse slot, vertically cuts the wall at the place where the current density is maximum, and adopts the vertical polarization mode to emit the electric wave; The electromagnetic lens is installed on the vacuum tube flying train as a skylight, andthe electromagnetic lens is a metal plate super lens, which is used for transmitting a leakage waveguide generated in the leakage wave device to realize vehicle-ground communication of the vacuum tubeflying train. Energy can be fully transmitted into the medium, which significantly enhances the transmission ability of incident plane electromagnetic wave, accords with the characteristics of traintransmission in the vacuum environment of closed metal pipes, and greatly improves the wireless signal transmission effect of the wireless communication system of vacuum tube high-speed flying train.

Description

technical field [0001] The invention relates to the technical field of electromagnetic waves, in particular to a vacuum tube flying train communication system in which an electromagnetic medium directly covers a leaky wave system. Background technique [0002] With the continuous popularization of high-speed vehicles represented by high-speed rail, vacuum tube high-speed flying trains are also emerging in the field of transportation. The high-speed flight train pipeline is a narrow and long sealed channel, which is generally installed underground, outdoors or even in the seabed environment. In order to balance cost, air tightness and structural firmness, the inner wall of the pipeline is generally made of metal with a multi-layer material structure, which greatly facilitates It restricts the wireless signal from entering the channel and causes great attenuation to the wireless signal. [0003] The wireless communication system is the key to the safe operation of high-speed ...

AI Technical Summary

Problems solved by technology

However, this solution is based on the open operating environment of the traditional wheel-rail high-speed rail, and the condition of the radio wave propagation channel in the vacuum pipeline is far superior to that in the open environment. The advantages of the vehicle-mounted relay station structure are not obvious, and the leaky cable has strict requirements on the slotting process size. , and there will be a large radio wave loss

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