Metamaterial based miniaturized broadband acoustic absorber

被引：7

作者：

Dasila, Santosh ^{[1
]}

Krishnamurthy, Chitti Venkata ^{[1
]}

Subramanian, V. ^{[1
]}

机构：

[1] Indian Inst Technol Madras, Dept Phys, Microwave Lab, Chennai 600036, India

来源：

JOURNAL OF APPLIED PHYSICS | 2023年 / 133卷 / 11期

关键词：

HELMHOLTZ RESONATOR; SOUND-ABSORPTION; PROPAGATION;

D O I：

10.1063/5.0142650

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A miniaturized, broadband (800-5000 Hz) absorber with > 95% absorption is proposed and realized. The absorber is designed using quarter-wavelength resonator tubes coiled as a rectangular "meta-atom. " The study describes the basic theoretical aspects of the absorber and compares it with the numerical simulations, fabrication, and experimental validation. The meta-atom, simple in design and made with fabrication-friendly materials, can provide greater spatial coverage through tiling over large surfaces.

引用

页数：7

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