Premium
Broadband transparent metamaterial absorber in wireless communication band based on indium tin oxide film
Author(s) -
Yu Buyun,
Zhao Yongjiu,
Chen Jiaqing,
Ge Yue,
Chen Xiaofeng
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21955
Subject(s) - materials science , metamaterial absorber , indium tin oxide , optoelectronics , metamaterial , broadband , resistive touchscreen , ohmic contact , bandwidth (computing) , opacity , indium , optics , thin film , telecommunications , tunable metamaterials , electrical engineering , computer science , layer (electronics) , composite material , nanotechnology , engineering , physics
In this article, a broadband optically transparent metamaterial absorber in wireless communication band is proposed. Indium tin oxide (ITO) film, a kind of resistive transparent thin film, is utilized to construct the absorber unit to realize optical transparency, and increase ohmic loss to broaden the absorption bandwidth. The proposed absorber is fabricated and measured. The measurement results are in good agreement with the simulations. It is demonstrated that the absorption rate of the proposed absorber is higher than 90% from 1.67 to 3.8 GHz. The full width at half maximum bandwidth is 5.11 GHz from 0.89 to 6 GHz. In addition, the absorption response of the absorber remains stable regardless of polarization and incidence angle of the electromagnetic waves.