TM02 Quarter-Mode Substrate-Integrated Waveguide Resonator for Dual Detection of Chemicals
- Authors
- Salim, Ahmed; Lim, Sungjoon
- Issue Date
- Jun-2018
- Publisher
- MDPI
- Keywords
- dual detection; TM02-mode quarter-mode substrate-integrated waveguide; microwave sensor; microfluidic channel
- Citation
- SENSORS, v.18, no.6
- Journal Title
- SENSORS
- Volume
- 18
- Number
- 6
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/2147
- DOI
- 10.3390/s18061964
- ISSN
- 1424-8220
1424-3210
- Abstract
- The detection of multiple fluids using a single chip has been attracting attention recently. A TM02 quarter-mode substrate-integrated waveguide resonator designed at 5.81 GHz on RT/duroid 6010LM with a return loss of 13 dB and an unloaded quality factor of Q approximate to 13 generates two distinct strong electric fields that can be manipulated to simultaneously detect two chemicals. Two asymmetric channels engraved in a polydimethylsiloxane sheet are loaded with analyte to produce a unique resonance frequency in each case, regardless of the dielectric constants of the liquids. Keeping in view the nature of lossy liquids such as ethanol, the initial structure and channels are optimized to ensure a reasonable return loss even in the case of loading lossy liquids. After loading the empty channels, Q is evaluated as 43. Ethanol (E) and deionized water (DI) are simultaneously loaded to demonstrate the detection of all possible combinations: [Air, Air], [E, DI], [DI, E], [E, E], and [DI, DI]. The proposed structure is miniaturized while exhibiting a performance comparable to that of existing multichannel microwave chemical sensors.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/2147)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.