Transparent broadband metamaterial absorber based on resistive films

被引：147

作者：

Sheokand, Harsh ^{[1
]}

Ghosh, Saptarshi ^{[1
]}

Singh, Gaganpreet ^{[2
]}

Saikia, Mondeep ^{[1
]}

Srivastava, Kumar Vaibhav ^{[1
]}

Ramkumar, J. ^{[2
]}

Ramakrishna, S. Anantha ^{[3
]}

机构：

[1] Indian Inst Technol Kanpur, Dept Elect Engn, Kanpur 208016, Uttar Pradesh, India

[2] Indian Inst Technol Kanpur, Dept Mech Engn, Kanpur 208016, Uttar Pradesh, India

[3] Indian Inst Technol Kanpur, Dept Phys, Kanpur 208016, Uttar Pradesh, India

来源：

JOURNAL OF APPLIED PHYSICS | 2017年 / 122卷 / 10期

关键词：

DESIGN; SCATTERING; FERRITE; ITO;

D O I：

10.1063/1.5001511

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, an optically transparent metamaterial with broadband absorption is presented theoretically and demonstrated experimentally. The design comprises of structures made of resistive films of indium-tin-oxide and the metamaterial exhibits over 10 dB absorption in the frequency range of 6.06-14.66GHz. The novelty of the structure lies in its large absorption bandwidth along with a reduced thickness and optical transparency compared to broadband absorbers reported earlier. Besides, the proposed design is polarization-insensitive and gives rise to angular independent absorption for both transverse electric and transverse magnetic polarizations. The absorption mechanism in the structure has been studied by deriving an equivalent circuit model as well as analyzing several design parameters. Finally, a prototype of the proposed structure has been fabricated and measured, which shows good agreement with the simulated results. Published by AIP Publishing.

引用

页数：7

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