Three-dimensional graphene antenna and preparation method thereof

Abstract

The invention discloses a three-dimensional graphene antenna and a preparation method thereof. The antenna comprises a three-dimensional graphene radiation layer, a dielectric substrate, a metal layer and a feeder line, wherein the three-dimensional graphene radiation layer is made of porous three-dimensional graphene. The preparation process of the three-dimensional graphene comprises the steps of firstly, condensing gas to form tiny solid particles to obtain compressed gas solid particles, then mixing the compressed gas solid particles with a graphene oxide dispersion liquid, removing the dispersion liquid in a high-pressure and low-temperature state so as to enable the graphene oxide to surround the compressed gas solid particles to coat the compressed gas solid particles, and extruding to form a graphene oxide block containing micro compressed air solid particles. When the external environment is changed into normal temperature and normal pressure, the compressed gas solid particles are volatilized into gas, holes are reserved in the graphene oxide, and the three-dimensional graphene is obtained after annealing treatment. The preparation method is simple and easy to implement, efficient and energy-saving, the prepared three-dimensional graphene has a porous conductive network structure, and the prepared three-dimensional graphene antenna can be widely applied to the fields of electronics, information, materials, energy and the like.

Description

technical field [0001] The invention belongs to the technical field of antennas and low-dimensional materials, and in particular relates to a three-dimensional graphene antenna and a preparation method thereof. Background technique [0002] In the Internet of Things society, data transmission and reception mainly rely on antennas. As the front-end equipment in the Internet of Things system, the antenna’s superior performance directly affects the entire Internet of Things system. However, traditional antenna radiation patches are mostly metal, but metal The material has disadvantages such as low photoelectric efficiency, high bit error rate, and corrosion resistance. If graphene with better performance is used instead, the antenna's electrical conductivity, thermal conductivity, and corrosion resistance can be improved while reducing costs. Popularization of the Internet. [0003] Graphene is a new type of nanomaterial. From the appearance point of view, it presents a single...

AI Technical Summary

Problems solved by technology

However, the thickness of single-layer graphene is only 0.35nm, which is difficult to identify and operate, which limits the practical application of graphene in microstrip antennas.

The traditional three-dimensional graphene preparation method is not only complicated, but also brings other impurities that have a certain impact on the physical and chemical properties of the prepared three-dimensional graphene.

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