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

Dual-frequency-band circular concentric-square-shaped left-handed material unit

A left-handed material and dual-band technology, applied in the direction of electrical components, radiating element structure, antenna, etc., can solve problems that are difficult to apply in practice and limit the scope of application of metamaterials, and achieve the effect of easy implementation, strong resonance, and simple structure

Pending Publication Date: 2019-07-26
YUNNAN UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The common feature of the above metamaterials is that the wave vector direction of the incident wave must be at the same level as the plane of the metamaterial unit, which greatly restricts the scope of application of this type of metamaterial and is difficult to apply in practice.

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
  • Dual-frequency-band circular concentric-square-shaped left-handed material unit
  • Dual-frequency-band circular concentric-square-shaped left-handed material unit
  • Dual-frequency-band circular concentric-square-shaped left-handed material unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0024] Any feature disclosed in this specification (including any appended claims, abstract), unless otherwise stated, may be replaced by alternative features that are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0025] Such as figure 1 As shown, the dual-band round-shaped left-hand material unit of the present invention includes a dielectric plate 4 and a round-shaped patch 5 printed on the dielectric plate 4; the round-shaped patch 5 consists of two outer semicircles and two inner semicircles. It is composed of a microstrip line 3 passing through the center of the circle; the two outer semicircles are arranged up and down, and the two inner semicircles are rotated 90° arou...

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

The invention discloses a dual-frequency-band circular concentric-square-shaped left-handed material unit, and relates to the field of wireless communication; the dual-frequency-band circular concentric-square-shaped left-handed material unit comprises a dielectric plate (4) and a circular concentric-square-shaped patch (5) printed on the dielectric plate (4), wherein the circular concentric-square-shaped patch (5) is composed of two outer semicircles, two inner semicircles and a micro-strip line (3) passing through the circle center; the two outer semicircles are arranged up and down, and thetwo inner semicircles are rotated by 90 degrees around the center of a circle relative to the outer semicircles, and are arranged in a left-right manner; and two symmetric ground gaps are formed between the two outer semicircles, and four symmetric ground gaps are formed between the two inner semicircles and the micro-strip line. The dual-frequency-band circular concentric-square-shaped left-handed material unit is simple in structure, easy to implement and low in cost.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to a double-band circular left-handed material unit. Background technique [0002] Left-handed material is one of the most classic metamaterials, which is defined as having both negative permittivity and negative magnetic permeability in certain frequency bands. Composed of artificial unit structures whose periodic size is much smaller than the working wavelength, this type of material can exhibit extraordinary physical properties that natural materials do not have. [0003] As early as 1968, the Soviet theoretical physicist Veselago discovered through careful study of Maxwell’s equations that when electromagnetic waves propagate in materials with negative magnetic permeability and permittivity, the phase velocity and group of electromagnetic wave propagation The direction of the velocity all presents an anti-phase state, so that the three vectors of the electric field E, the ma...

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): H01Q15/00H01Q1/38
CPCH01Q15/0086H01Q1/38
Inventor 崔燕妮向晶申东娅任文平
Owner YUNNAN UNIV
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