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

Metamaterial-based antenna

A technology of metamaterials and antennas, applied to antennas, electrical components, etc., can solve the problems of large volume, high cost, and high processing precision of the spherical lens 40, and achieve the effects of convenient and flexible design, simple manufacturing process, and small volume

Active Publication Date: 2012-05-30
KUANG CHI INST OF ADVANCED TECH +1
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of implementing the present invention, the inventor found that the lens antenna has at least the following technical problems: the spherical lens 40 is bulky and heavy, which is not conducive to the use of miniaturization; and the spherical lens 40 has a great dependence on the shape, which needs to be more precise. The directional propagation of the antenna can be realized, so the requirements for processing accuracy are relatively high, and the cost is relatively high

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
  • Metamaterial-based antenna
  • Metamaterial-based antenna
  • Metamaterial-based antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A metamaterial is a new type of material with artificial microstructures 2 as the basic unit, which is spatially arranged in a specific way and has a special electromagnetic response, including artificial microstructures 2 and a substrate 1 for the artificial microstructures to attach to. The artificial microstructure 2 is a planar structure or a three-dimensional structure composed of at least one metal wire. A plurality of artificial microstructures 2 are arranged in an array on the substrate 1. The portion occupied by each artificial microstructure 2 and the substrate 1 attached to it is is a metamaterial unit. The substrate 1 can be any material different from the artificial microstructure 2. The superposition of these two materials makes each metamaterial unit produce an equivalent permittivity and permeability. These two physical parameters correspond to the metamaterial unit’s Electric field response and magnetic field response. The characteristics of the metama...

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

No PUM Login to View More

Abstract

A metamaterial-based antenna of an embodiment of the invention comprises a metamaterial panel with an electromagnetic wave converging function and a signal source on the focus of the metamaterial panel. The metamaterial panel comprises a circular zone and a plurality of annular zones concentric with the circular zone, wherein the refractive index in the circular zone and the annular zones continuously reduces as a radius increases, and is the same at the parts with the same radius, at least two adjacent zones (a first zone and a second zone) are provided in the plurality of zones, the refractive index in the first zone continuously reduces from n1 to n2 as the radius increases, the refractive index in the second zone continuously reduces from n3 to n4 as the radius increases, and n3 is greater than n2. The antenna converts an electromagnetic wave signal diverged in the form of spherical waves into an electromagnetic wave signal capable of being transmitted in long distance in the formof plane waves, has a small size and a simple fabrication process, and is convenient and flexible to design and suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of antennas, in particular to an antenna based on metamaterials. Background technique [0002] In conventional optical devices, a lens can make the spherical wave radiated by a point light source located at the focal point of the lens become a plane wave after being refracted by the lens. The lens antenna is composed of a lens and a radiator placed on the focal point of the lens. Using the characteristics of lens convergence, the electromagnetic wave radiated by the radiator is converged by the lens and then emitted. This antenna has strong directivity. [0003] At present, the convergence of the lens is realized by the refraction of the spherical shape of the lens, such as figure 1 As shown, the spherical wave emitted by the radiator 30 is converged by the spherical lens 40 and then emitted as a plane wave. In the process of implementing the present invention, the inventor found that the lens antenna has at least t...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/06H01Q15/00H01Q15/02
Inventor 刘若鹏岳玉涛季春霖
Owner KUANG CHI INST OF ADVANCED TECH
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