3D Graphene Antenna Structure for Conductivity and Operability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional metal antennas have limitations such as low photoelectric efficiency, high bit error rate, and non-corrosion resistance, while two-dimensional graphene antennas are difficult to identify and operate due to their thinness, and the traditional preparation methods of three-dimensional graphene are complex and introduce impurities.
Innovation Solution
A three-dimensional graphene antenna is developed with a porous three-dimensional graphene radiation layer, a dielectric substrate, a metal layer, and a feeder line, using a preparation method that involves pressurizing gas into a solid, crushing it into micro-particles, and using these particles as a template to create a graphene oxide block, which is then annealed to form porous three-dimensional graphene.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two-dimensional single-layer graphene is used as antenna radiation layer, then electrical conductivity and electron mobility are improved, but the thickness is only 0.35 nm making it difficult to identify and operate
Solution Approach 1:
The patent transforms two-dimensional single-layer graphene into three-dimensional porous graphene structures by stacking multiple layers and creating porous architectures. This dimensional transformation maintains the excellent electrical conductivity of graphene while providing visible thickness and improved operability for antenna applications.
2Ease of operation
If traditional preparation methods are used to create three-dimensional graphene, then thickness and operability are improved, but the preparation process becomes complex and introduces impurities
Solution Approach 1:
The patent employs hydrothermal treatment parameters (temperature, pressure, time) to directly transform graphene oxide into three-dimensional porous graphene structures. This parameter-based transformation simplifies the preparation process compared to traditional multi-step methods while avoiding impurity introduction, achieving both operational feasibility and process simplicity.
3Strength
If traditional metal materials are used for antenna radiation patches, then structural strength is maintained, but photoelectric efficiency is low and corrosion resistance is poor
Solution Approach 1:
The patent creates composite structures combining three-dimensional porous graphene with dielectric substrates and metal feed lines. The graphene provides superior electrical conductivity and corrosion resistance, while the composite architecture maintains structural strength through the integrated substrate and support framework.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The three-dimensional graphene antenna achieves low resistivity, high precision, and good performance, with improved electrical conductivity, thermal conductivity, and corrosion resistance, while the preparation method is simple, environmentally friendly, and energy-efficient.
Implementation Method 1
under low temperature and high pressure, pressurizing gas whose intermolecular force is greater than repulsive force into a solid
Implementation Method 2
the graphene oxide flakes enwrapping around the pressurized solid particles by removing the liquid nitrogen in the mixed solution through increasing a temperature of the mixed solution
Implementation Method 3
sublimating the pressurized solid particles in the graphene oxide block into gas by increasing a temperature and decreasing a pressure of the graphene oxide block, forming holes in the graphene oxide block
Implementation Method 4
obtaining the porous three-dimensional graphene by annealing in a vacuum condition
Data Source
AI summary
A three-dimensional graphene antenna includes a three-dimensional graphene radiation layer, a dielectric substrate, a metal layer and a feeder line. The three-dimensional graphene radiation layer is made from porous three-dimensional graphene. A preparation method of the porous three-dimensional graphene includes steps of preparing pressurized solid particles by pressurizing gas into solid micro particles, mixing the pressurized solid particles with a graphene oxide dispersion liquid, removing liquid nitrogen under high pressure and low temperature such that the graphene oxide flakes enwrap around the pressurized solid particles, obtaining a graphene oxide block containing the pressurized solid particles by extruding, sublimating the pressurized solid particles in the graphene oxide block into gas, forming holes in the graphene oxide block and annealing, thereby obtaining the three-dimensional graphene. The three-dimensional graphene has a porous three-dimensional conductive network structure, which is able to be in any shape without any pollution.