Adjustable linear polarization wave beam separator based on gradient super-surface

A technology of metasurface and separator, which is applied in the field of metasurface, can solve the problems of high Q value and narrow bandwidth of phase dynamic regulation, and achieve the effect of expanding bandwidth and improving conversion efficiency

Active Publication Date: 2016-04-06
FUDAN UNIV
View PDF2 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the previous research on tunable metasurfaces was limited to HMS, and there has been no public report on tunable GMS (TunableGMS, TGMS).
At the same time, due to the introduction of PIN diodes,

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
  • Adjustable linear polarization wave beam separator based on gradient super-surface
  • Adjustable linear polarization wave beam separator based on gradient super-surface
  • Adjustable linear polarization wave beam separator based on gradient super-surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention is further specifically described below through specific examples.

[0022] The TGMS unit consists of a three-layer metal structure, a two-layer dielectric board, and metallized vias connecting the three-layer metal structure, such as figure 1 shown.

[0023] In this embodiment, the upper / lower dielectric boards are all made of polytetrafluoroethylene glass cloth boards, and the dielectric constant ε r =2.65, electric tangent loss tanσ=0.001, thickness of copper foil is 0.036mm, among them, p x =p y =12mm, the distance d between the patch and the open microstrip line 1 =0.4mm, the width d of the open microstrip line 2 =0.5mm, via diameter d 3 =0.3mm, the width of the patch w 1 =3mm, the width w of the high-impedance microstrip line in the brush structure 2 =0.4mm, the outer and inner radius R of the ring in the brush structure 1 =3mm, R 2 =2.5mm, the thickness h of the upper and lower dielectric plates 1 =3mm, h 2 =0.5mm, the height h o...

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 belongs to the technical field of super-surfaces, specifically an adjustable linear polarization wave beam separator based on a gradient super-surface. The separator takes TGMS units as the basis, enables six TGMS units to sequentially rotate 30 degrees in the clockwise direction, and obtains a TGMS super-unit with a phase gradient. The TGMS super-unit is enabled to carry out two-dimensional periodic extension in x and y orthogonal directions in a horizontal plane, and a microstrip bias line at the lower layer of the TGMS is used for the feed of the TGMS units in each row, thereby obtaining the separator with a plurality of functions. The TGMS units are in a three-layer metal structure, wherein the upper layer consists of a pair of the same metal pasters and an opening microstrip line, wherein the opening at the center of the opening microstrip line is used for loading a PIN diode, the central layer is a metal ground plate and the center consists of two metal columns and circular grooves wrapping the upper column, and the lower layer is a brush structure. The separator greatly improves the conversion efficiency (greater than 89%), and achieves the switching and regulation and control of wave beam separation frequency bands.

Description

technical field [0001] The invention belongs to the technical field of metasurfaces, in particular to an adjustable linear polarization beam splitter based on gradient metasurfaces. Background technique [0002] Metamaterial (MTM) refers to a "specific" artificial composite structure or material with a certain electrical or magnetic response that does not exist in nature itself. People use sub-wavelength artificial microstructure units and design based on electromagnetic theory. Although people can arbitrarily manipulate electromagnetic waves through three-dimensional heterotropic media, high loss and manufacturing complexity greatly limit its application, so there are not many real applications at present. As a two-dimensional planar form of anisotropic medium, a metasurface is born accordingly. Due to its unique electromagnetic characteristics and planar structure, it can conform to high-speed targets such as aircraft, missiles, rockets, and satellites without destroying i...

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): H01Q15/24
CPCH01Q15/244
Inventor 许河秀罗伟杰蔡通周磊
Owner FUDAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap