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

Ultrathin frequency-selective metamaterial capable of wave absorption from two sides, antenna cover and antenna system

A metamaterial, wave-frequency technology, applied in antennas, antenna arrays, antenna components and other directions, can solve the problems of complex design and high density, and achieve the effect of reducing the radar scattering cross section

Active Publication Date: 2016-05-11
NAT UNIV OF DEFENSE TECH
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defect that the existing composite metamaterial radome has a narrow wave-transmitting band and only forms absorbing characteristics on one side outside the wave-transmitting band, the design is complex and dense, and a Ku-band wave-transmitting, X-band and K-band absorbing composite metamaterials

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
  • Ultrathin frequency-selective metamaterial capable of wave absorption from two sides, antenna cover and antenna system
  • Ultrathin frequency-selective metamaterial capable of wave absorption from two sides, antenna cover and antenna system
  • Ultrathin frequency-selective metamaterial capable of wave absorption from two sides, antenna cover and antenna system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as figure 1 As shown, an ultra-thin double-sided microwave-absorbing frequency-selective metamaterial is virtually divided into a plurality of periodically arranged square unit structures 103; the square unit structure It includes a dielectric substrate 100, a square ring-shaped resistive film 101 attached to the upper surface of the dielectric substrate, and a comb-shaped frequency-selective surface periodic structure 102 attached to the lower surface of the dielectric substrate. In an embodiment, the dielectric substrate is made of a non-conductive material; TSM-DS3 of Taconic Company is used. The surface resistivity of the square ring-shaped resistive film is 50 ohm / square. The comb-shaped frequency selective surface periodic structure is fabricated on a square metal patch through an etching process, and the square metal patch ...

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
Login to View More

Abstract

The invention belongs to the technical field of a material and an antenna cover, in particular relates to an ultrathin frequency-selective metamaterial capable of wave absorption from two sides, an antenna cover and an antenna system. The ultrathin frequency-selective metamaterial capable of wave absorption from the two sides is virtually divided into a plurality of square unit structures arranged periodically, wherein each square unit structure comprises a dielectric substrate, a square annular resistance thin film and a comb-shaped frequency selective surface periodic structure, the square annular resistance thin film is attached onto the upper surface of the dielectric substrate, and the comb-shaped frequency selective surface periodic structure is attached onto the lower surface of the dielectric substrate. The antenna cover disclosed by the invention is used for covering the antenna system and comprises the above ultrathin frequency-selective metamaterial capable of wave absorption from the two sides. The antenna system comprises an antenna and the above antenna cover. With the metamaterial disclosed by the invention, favorable radiation characteristic of the antenna in a Ku wave band can be maintained, and the antenna can freely transmit and receive communication; and meanwhile, in an X wave band and a K wave band on the two sides of the Ku wave band, the metamaterial disclosed by the invention is provided with the resistance thin film with wave absorption characteristic taking a square metal patch layer as a grounding surface, and the wave incident to the antenna cover is absorbed.

Description

technical field [0001] The invention belongs to the technical field of materials and radome, and in particular relates to an ultra-thin double-sided wave-absorbing frequency-selective metamaterial, a radome, and an antenna system. Background technique [0002] Metamaterial is a kind of artificial periodic composite material, with the dielectric substrate as the substrate, and the metamaterial structural unit composed of metal foil, lumped resistor capacitor or resistor capacitor thin film and magnetic material is arranged on the dielectric substrate. When electromagnetic waves irradiate this special metamaterial, its electromagnetic properties change. Through the design of the unit structure, electromagnetic wave manipulation is realized to achieve the purpose of frequency selection, so that the metamaterial can realize different functions in specific frequency bands. [0003] The research on metamaterials with frequency selection function has been relatively in-depth, and h...

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): H01Q17/00H01Q1/42H01Q21/00
CPCH01Q1/42H01Q1/422H01Q17/00H01Q21/00
Inventor 吴微微袁乃昌孟田珍黄敬健冯起周扬王青平卢洪树崔开博
Owner NAT UNIV OF DEFENSE 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