Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Graphene transparent antenna and manufacturing method thereof

A technology of graphene and graphene layers, applied in the structural form of radiation elements, etc., can solve problems such as poor conductivity and poor transmittance of transparent antennas, and achieve the effects of solving conductivity problems, ensuring transmittance, and improving radiation efficiency

Active Publication Date: 2018-01-26
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
View PDF15 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the shortcomings of the prior art described above, the object of the present invention is to provide a graphene transparent antenna and a preparation method thereof, which are used to solve the problems of poor light transmittance and poor conductivity of the transparent antenna in the prior art.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Graphene transparent antenna and manufacturing method thereof
  • Graphene transparent antenna and manufacturing method thereof
  • Graphene transparent antenna and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In this embodiment, the material of the transparent base material 1 is a quartz plate, put the quartz plate substrate into isopropanol, clean it ultrasonically for 30 minutes, then take out the quartz plate substrate, dry it with nitrogen gas with a purity of 99.999%, and put it into a vacuum Heat it in an oven to 80° C., and bake for 30 minutes; a layer of 5 nm ultra-thin copper metal is plated on the upper surface of the quartz substrate by electron beam evaporation, which is the ultra-thin metal layer 2 .

[0046] Make an antenna shape with an elliptical face antenna and its feeder structure (such as figure 1 ) mask plate structure, and use photolithography technology to make the ultra-thin metal layer into an ultra-thin metal layer 2 with a predetermined antenna shape.

[0047] The specific photolithography steps are as follows:

[0048] (1) Coating: spin-coat photoresist on the ultra-thin copper metal layer / quartz sheet, the speed is 3000rad / s, the acceleration is...

Embodiment 2

[0060] Put the quartz substrate into isopropanol, ultrasonically clean it for 30 minutes, then take out the quartz substrate, dry it with nitrogen with a purity of 99.999%, put it in a vacuum oven, heat it to 80°C, and bake it for 30 minutes; The upper surface of the substrate is plated with a layer of 5nm ultra-thin copper metal by electron beam evaporation.

[0061] Fabricate the mask structure (e.g. figure 2 As shown), the macroscopic structure of the mask plate is an elliptical surface antenna and its feeder shape, the internal structure of the antenna is a grid shape, the grid period is 500 μm, the line width is 4 nm, the duty cycle is 10%, and the thickness is 5 nm.

[0062] Then, using the same photolithography method as in Embodiment 1, the ultra-thin metal layer is fabricated into an ultra-thin metal grid layer with a predetermined antenna shape.

[0063] Secondly, put the antenna-shaped copper metal grid layer / quartz sheet into the cavity of the CVD furnace, pass i...

Embodiment 3

[0066] Put the quartz substrate into isopropanol, ultrasonically clean it for 30 minutes, then take out the quartz substrate, dry it with nitrogen with a purity of 99.999%, put it in a vacuum oven, heat it to 80°C, and bake it for 30 minutes; The upper surface of the substrate is plated with a layer of 5nm ultra-thin copper metal by electron beam evaporation.

[0067] Fabricate the mask structure (e.g. figure 2 As shown), the macroscopic structure of the mask plate is an elliptical surface antenna and its feeder shape, the internal structure of the antenna is a grid shape, the grid period is 500um, the line width is 4nm, the duty cycle is 10%, and the thickness is 5nm.

[0068] Then, using the same photolithography method as in Embodiment 1, the ultra-thin metal layer is fabricated into an ultra-thin metal grid layer with a predetermined antenna shape. Subsequently, put the antenna-shaped copper metal grid layer / quartz sheet into the cavity of the CVD furnace, pass in argon ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Sheet resistanceaaaaaaaaaa
Login to View More

Abstract

The invention provides a graphene transparent antenna and a manufacturing method thereof. The method comprises steps that 1), a transparent substrate is pre-processed; 2), a super-thin metal layer isformed on the transparent substrate; 3), the super-thin metal layer is made to be in a pre-determined antenna shape; and 4), a graphene layer in the pre-determined antenna shape is formed on the super-thin metal layer, and the graphene transparent antenna is acquired. The method is advantaged in that super-thin metal with relatively high concentration and graphene with relatively high carrier mobility are composed together, an anti-reflection layer is further composed when the anti-reflection layer is necessary, not only can material light transmittance be guaranteed, but also a material conductivity problem is solved, and thereby antenna radiation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of transparent antennas, in particular to a graphene transparent antenna and a preparation method thereof. Background technique [0002] With the rapid development of the wireless communication system, its application scenarios are becoming more and more abundant, so that the requirements of the wireless communication system for antenna performance become more and more diverse. In order to achieve good stealth, conformality and security for the antenna, in 1997, scientists from the National Aeronautics and Space Administration (NASA) proposed the idea of ​​using light-transparent film materials to make transparent antennas. [0003] After the light-transparent film technology was proposed, scientists began to search for light-transparent film materials that could be used to make antennas. Light transmittance and surface resistance are the criteria to measure whether a material can be used for transparent an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01Q1/38
Inventor 邵丽史浩飞胡承刚杨俊
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com