Transparent broadband microwave metamaterial absorber with thermal insulating and soundproof
Chang Yang , Sai Chen , Shuai Niu , Lin Xiao , Yan-chen Qu
Optoelectronics Letters ›› 2021, Vol. 17 ›› Issue (2) : 85 -89.
Transparent broadband microwave metamaterial absorber with thermal insulating and soundproof
Nowadays, multi-functional materials are desperately required for adapting the complex environment, which urges us to take more factors into consideration. Here, we proposed a broadband microwave absorber with multi-functionality such as optically transparent, thermal insulating and soundproof properties. Using indium tin oxide (ITO) based metamaterial, the device can achieve above 90% microwave absorption from 5.6 GHz to 23 GHz (cover X and Ku band). Moreover, with designed vacuum structure inside, the device is thermal insulating and soundproof. These multi-functional advantages give the absorber more flexibility in electromagnetic shielding and stealth application, which can be potentially applied in windows related industry.
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