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- Title
Narrow/Broad-Band Absorption Based on Water-Hybrid Metamaterial.
- Authors
Khuyen, Bui Xuan; Hanh, Vu Thi Hong; Tung, Bui Son; Lam, Vu Dinh; Kim, Young Ju; Lee, YoungPak; Tu, Hua-Tian; Chen, Liang Yao
- Abstract
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.
- Subjects
IEEE 802.16 (Standard); MICROWAVE heating; ABSORPTION; IMPEDANCE matching; WATER temperature
- Publication
Crystals (2073-4352), 2020, Vol 10, Issue 5, p415
- ISSN
2073-4352
- Publication type
Article
- DOI
10.3390/cryst10050415