Flexible thin broadband microwave absorber based on a pyramidal periodic structure of lossy composite

被引：65

作者：

Huang, Yixing ^{[1
]}

Yuan, Xujin ^{[2
]}

Wang, Changxian ^{[3
]}

Chen, Mingji ^{[2
]}

Tang, Liqun ^{[1
]}

Fang, Daining ^{[2
]}

机构：

[1] South China Univ Technol, Sch Civil Engn & Transportat, Guangzhou 510641, Guangdong, Peoples R China

[2] Beijing Inst Technol, Beijing Key Lab Lightweight Multifunct Composite, Beijing 100081, Peoples R China

[3] Peking Univ, Coll Engn, Beijing 100871, Peoples R China

来源：

OPTICS LETTERS | 2018年 / 43卷 / 12期

关键词：

DESIGN;

D O I：

10.1364/OL.43.002764

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Microwave absorber with broadband absorption and thin thickness is one of the main research interests in this field. A flexible ultrathin and broadband microwave absorber comprising multiwall carbon nanotubes, spherical carbonyl iron, and silicone rubber is fabricated in a newly proposed pyramidal spatial periodic structure (SPS). The SPS with equivalent thickness of 3.73 mm covers the -10 dB and -15 dB absorption bandwidth in the frequency range 2-40 GHz and 10-40 GHz, respectively. The excellent absorption performance is achieved by concentration and dissipation of the electromagnetic field inside different parts of the magnetic-dielectric lossy protrusions in different frequency ranges. (C) 2018 Optical Society of America

引用

页码：2764 / 2767

页数：4

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