A Fluidically Tunable Metasurface Absorber for Flexible Large-Scale Wireless Ethanol Sensor Applicationsopen access
- Authors
- Kim, Hyung Ki; Lee, Dongju; Lim, Sungjoon
- Issue Date
- Aug-2016
- Publisher
- MDPI AG
- Keywords
- metamaterial; metasurface; absorber; microfluidics; wireless sensor
- Citation
- SENSORS, v.16, no.8
- Journal Title
- SENSORS
- Volume
- 16
- Number
- 8
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/6692
- DOI
- 10.3390/s16081246
- ISSN
- 1424-8220
1424-3210
- Abstract
- In this paper, a novel flexible tunable metasurface absorber is proposed for large-scale remote ethanol sensor applications. The proposed metasurface absorber consists of periodic split-ring-cross resonators (SRCRs) and microfluidic channels. The SRCR patterns are inkjet-printed on paper using silver nanoparticle inks. The microfluidic channels are laser-etched on polydimethylsiloxane (PDMS) material. The proposed absorber can detect changes in the effective permittivity for different liquids. Therefore, the absorber can be used for a remote chemical sensor by detecting changes in the resonant frequencies. The performance of the proposed absorber is demonstrated with full-wave simulation and measurement results. The experimental results show the resonant frequency increases from 8.9 GHz to 10.04 GHz when the concentration of ethanol is changed from 0% to 100%. In addition, the proposed absorber shows linear frequency shift from 20% to 80% of the different concentrations of ethanol.
- Files in This Item
-
- Appears in
Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.