Vortex electromagnetic wave converging device, wireless communication system

Abstract

The invention belongs to the technical field of digital information transmission, and discloses a converging device of vortex electromagnetic wave and a wireless communication system. The microwave lens is laminated by a plurality of circular structures, and the circular structure is composed of a part of basic units located at the center and a plurality of circular arcs. The circular arc structure is composed of several basic units, the cylindrical radius of the basic unit in the same position in each layer decreases from top to bottom, the cylindrical radius of the basic unit in the same layer decreases from inside to outside, and the cylindrical radius of the basic unit in the same circular arc structure in the same layer is the same. The feed center is located at the central axis of the lens. Compared with the prior art, the invention effectively separates the generation and the convergence of the vortex electromagnetic wave, and can effectively act on the existing energy-divergingvortex electromagnetic wave. 3D printing technology is adopted in that microwave lens of the invention, the design is simple, the price is low, and compared with the prior art, the industrial manufacturing cost can be greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of digital information transmission, and in particular relates to a vortex electromagnetic wave converging device and a wireless communication system. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: Due to its unique properties, vortex electromagnetic waves are widely used in many fields, but the application in the field of communication is still in its infancy. On June 24, 2011, Professor Bo Thide's research team conducted a remarkable experiment in the lagoon of Venice, Italy, proving that the capacity of wireless communication can be greatly improved by using the orbital angular momentum of electromagnetic waves, that is, by distorting electromagnetic waves. Under normal circumstances, only one channel of information can be transmitted on the same frequency. Here, by encoding different orbital angular momentums of electromagnetic waves, t...

AI Technical Summary

Problems solved by technology

[0004] (1) The converging vortex electromagnetic waves are directly obtained through the circularly polarized electromagnetic waves, which have no effect on the vortex electromagnetic waves that have already generated energy divergence. Under the premise of electromagnetic vortex information, due to the existence of the energy divergence angle, the size of the receiving antenna will continue to increase with the increase of the transmission distance, making it impractical to use OAM eigenmodes for long-distance multiplexing communication

[0005] (2) The electromagnetic metasurface structure is adopted. Since the electromagnetic metamaterial unit must adopt the metal resonant unit structure, the electromagnetic metasurface structure can only effectively work near the resonant frequency of the metal resonant unit, and the effective operating frequency range is narrow.

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