Next Article in Journal
Exploring SiC Planar IGBTs towards Enhanced Conductivity Modulation Comparable to SiC Trench IGBTs
Previous Article in Journal
Hot Deformation Behavior and Microstructure Characterization of an Al-Cu-Li-Mg-Ag Alloy
Previous Article in Special Issue
Optimization of Ultra-Thin Pulsed-DC Magnetron Sputtered Aluminum Films for the Technology of Hyperbolic Metamaterials
Open AccessArticle

Narrow/Broad-Band Absorption Based on Water-Hybrid Metamaterial

1
Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
2
Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
3
Thai Nguyen University of Education, Thai Nguyen University, Thai Nguyen 25000, Vietnam
4
Dongwoo Fine-Chem, Pyeongtaek 17956, Korea
5
Department of Physics, Quantum Photonic Science Research Center and RINS, Hanyang University, Seoul 04763, Korea
6
Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
*
Authors to whom correspondence should be addressed.
Crystals 2020, 10(5), 415; https://doi.org/10.3390/cryst10050415
Received: 5 May 2020 / Revised: 18 May 2020 / Accepted: 19 May 2020 / Published: 22 May 2020
(This article belongs to the Special Issue Metamaterials)
In this work, the possibility of a switchable metamaterial absorber is proposed to control absorption bandwidth in the WiMAX/LTE (worldwide interoperability for microwave access/long term evolution) band, by taking advantage of the low cost and myriad structural configurations afforded by water-based metamaterials. By exploiting truncated cone-type resonators, the fractional bandwidth of 27.6% of absorption spectrum can be adjusted flexibly to be 7.4% of the narrow-band absorption depending on the volume of injected water, in both simulation and experiment at room temperature. In particular, this control method can be applied stably for different temperature of injected water. We describe a dynamic mechanism for broadband MA, as well as a principle for controlling the absorption characteristics utilizing a combination of magnetic resonance and perfect impedance matching. These results are a stepping-stone towards the realization of smart electronics integrated with multi-functional metamaterials in military, biomedical, communication and other fields. View Full-Text
Keywords: metamaterials; perfect absorption; broadband metamaterials; perfect absorption; broadband
Show Figures

Graphical abstract

MDPI and ACS Style

Khuyen, B.X.; Hanh, V.T.H.; Tung, B.S.; Lam, V.D.; Kim, Y.J.; Lee, Y.; Tu, H.-T.; Chen, L.Y. Narrow/Broad-Band Absorption Based on Water-Hybrid Metamaterial. Crystals 2020, 10, 415.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop