Microfluidic Eighth-Mode Substrate-Integrated-Waveguide Antenna for Compact Ethanol Chemical Sensor Application
- Authors
- Seo, Yunsik; Memon, Muhammad Usman; Lim, Sungjoon
- Issue Date
- Jul-2016
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Chemical sensor; electromagnetic sensor; frequency reconfigurable antenna; microfluidics; substrate-integrated-waveguide (SIW)
- Citation
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.64, no.7, pp 3218 - 3222
- Pages
- 5
- Journal Title
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
- Volume
- 64
- Number
- 7
- Start Page
- 3218
- End Page
- 3222
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/6807
- DOI
- 10.1109/TAP.2016.2559581
- ISSN
- 0018-926X
1558-2221
- Abstract
- In this communication, a microfluidic antenna is proposed for chemical sensor applications. An eighth-mode substrate-integrated-waveguide (EMSIW) antenna with a microfluidic channel is introduced in order to devise a compact and nondestructive chemical sensor. The frequency response of the proposed antenna is controlled by changing the nanoliter liquid in the microfluidic channel, which further results in a change in the effective dielectric constant. First, the EMSIW antenna is designed, and then the microfluidic channel is designed for nondestructive chemical sensor applications. The S-parameters of the proposed microfluidic EMSIW antenna are simulated and measured. The resonant frequency is successfully switched from 4.2 to 4.6 GHz when the concentration of ethanol is changed from 0% to 100%. The possibility of the proposed antenna to be used as an ethanol chemical sensor is demonstrated from the relationship between the resonant frequency and the concentration of ethanol.
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