Novel three-dimensional broadband super-light wave-absorbing material and designing method thereof

Abstract

The invention discloses a novel three-dimensional broadband super-light wave-absorbing material and a designing method thereof. The wave-absorbing material comprises a metal baseboard, a three-dimensional rotary support and a periodic array which is constituted by square resistor discs on the upper surface. The three-dimensional rotary support is formed by a square planar resistor disc and four rhombic planar resistor discs which are connected. The four rhombic planar resistor discs are connected with four edges of the square planar resistor disc, respectively, and are folded by a certain angle alpha towards the square center along the edges of the square planar resistor disc. The edges of the square planar resistor disc are equal to those of the rhombic planar resistor discs. The square planar resistor disc, the rhombic planar resistor discs and the square resistor discs are made of resistive films. For the situation of vertical and oblique incidence of electromagnetic wave in the TM polarization manner, especially the situation of large angle of incidence of electromagnetic wave, good broadband wave-absorbing effect is achieved.

Description

technical field [0001] The invention relates to the technical field of electronic materials, in particular to a novel three-dimensional structure broadband ultra-light wave-absorbing material with improved TM wave large incident angle absorption performance. Background technique [0002] Electromagnetic stealth technology can effectively control or suppress radar signature signals of targets, reduce the probability of targets being discovered, identified, tracked, and destroyed, thereby improving the survivability and combat effectiveness of weapons and equipment. Radar absorbing materials are an effective means in the field of electromagnetic stealth, and have gradually become the focus of military applications. At the same time, electronic products are becoming more and more popular, and electromagnetic radiation is almost everywhere. Electromagnetic "pollution" issues such as electromagnetic interference and electromagnetic compatibility have become issues that affect hum...

AI Technical Summary

Problems solved by technology

At present, some designs improve the stability of the absorbing performance of radar absorbing materials for oblique incident angles by adding high-dielectric layer surfaces and multi-layer structures, but the absorbing performance at large angles has not yet been resolved.

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