Broadband and ultra-low reflection metamaterial absorber embedded with magnetic materials

被引：5

作者：

Zhou, Wei ^{[1
]}

Zhu, Zhenghou ^{[1
]}

Zou, Qiang ^{[1
]}

Yuan, Zhifen ^{[1
]}

Liu, Rongyu ^{[1
]}

机构：

[1] Nanchang Univ, Coll Mat Sci & Engn, Nanchang 330031, Peoples R China

来源：

CURRENT APPLIED PHYSICS | 2022年 / 41卷

关键词：

Absorber; Broadband; Magnetic materials; Ultra-low reflectivity; Metamaterial; PERFECT ABSORBERS; DESIGN;

D O I：

10.1016/j.cap.2022.05.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, we design, prepare and characterize a broadband, ultra-low reflectivity and incidence angle-insensitive metamaterial absorber. The design of this absorber not only provides a novel idea for the design of broadband absorbers, but also enhances the application prospects of metamaterial absorbers. By introducing FeSiAlp/epoxy magnetic composite and optimizing the structural parameters, the absorption performance of the metamaterial absorber has been significantly improved. The effective absorption bandwidth (bandwidth with reflectivity less than -10dB) is increased by 3.4 times from 2.19 GHz to 7.49 GHz, and the RLmin (minimum reflection loss) value reaches -38.31 dB at 17.83 GHz, that is the absorption rate reaches 99.99%. Meanwhile, the experimental results also verify the simulation design results. Therefore, the absorber not only plays the characteristics of strong absorption of metamaterial, but also absorbs the advantages of broadband of magnetic material.

引用

页码：18 / 25

页数：8

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