Rapid design method for dielectric composite absorbent

A design method and dielectric technology, applied in the field of wave-absorbing materials, can solve the problems of low research and development efficiency of dielectric-type absorbers

Pending Publication Date: 2020-11-06
SHANGHAI RADIO EQUIP RES INST
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention proposes a rapid design method for dielectric type composite absorbents, through a five-dimensional (thickness, frequency band, reflectivity, complex permittivity real part and imaginary part)

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
  • Rapid design method for dielectric composite absorbent
  • Rapid design method for dielectric composite absorbent
  • Rapid design method for dielectric composite absorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0041] The dielectric type composite absorber design method of the present invention is based on the electromagnetic theory and the principle of wave absorption, and based on the transmission line model of the metal backing, the model is simplified to obtain the dielectric absorption model; then the dielectric model is subjected to dielectric scanning parameters and three-dimensional reflection The five-dimensional design model based on the equal reflectivity circle is obtained in four steps of loss cloud map projection, resonance point redrawing and introduction of equal reflectivity circles.

[0042] Such as figure 1 Shown, method of the present invention comprises following process:

[0043] Step S1. Derivation of dielectric absorption model based on electromagnetic theory and wave absorption principle

[00...

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 rapid design method for a dielectric composite absorbent. The rapid design method comprises the following steps of: simplifying a transmission line model based on a metal backing according to an electromagnetic theory and a wave absorbing principle to obtain a dielectric absorption model; and performing dielectric parameter scanning, three-dimensional reflection loss cloud picture projection, resonance point redrawing and equal-reflectivity circle introduction on the model to obtain a five-dimensional design model based on the equal-reflectivity circle. According to the model and the method, the wave absorbing performance of the absorbent can be evaluated, a modification path can be provided, reference and basis are provided for material selection and subsequent preparation of the dielectric type absorbent, and research and development of the absorbent are accelerated.

Description

technical field [0001] The invention belongs to the technical field of wave-absorbing materials, and specifically proposes a method for quickly designing dielectric-type wave-absorbing materials. Background technique [0002] Dielectric absorbers have excellent dielectric loss, diverse microstructures, superior mechanical properties, good chemical stability, and low specific gravity, but their interface impedance matching is poor, microwave loss forms are single, and low-frequency absorption is weak. The effective absorption frequency band is narrow, and it is difficult to meet the urgent needs of modern combat aircraft for stealth materials "thin, light, wide, and strong". In addition, there are bottleneck problems such as complex preparation process, small microstructure change, poor interface wettability, and difficult dispersion, which seriously restricts The application of dielectric materials in the field of stealth. [0003] As a new type of absorber, the dielectric ...

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): G16C60/00G06F30/20G06F111/10
CPCG16C60/00G06F30/20G06F2111/10
Inventor 安锐冯明高鹏程
Owner SHANGHAI RADIO EQUIP RES INST
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