TY - GEN
T1 - EBG-based Sensor for Dielectric Characterization in Liquids
AU - Arif, Ali
AU - Zubair, Amna
AU - Khaliq, Hafiz Saad
AU - Zubair, Muhammad
AU - Riaz, Kashif
AU - Mehmood, Muhammad Qasim
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-20
PY - 2020/1/1
Y1 - 2020/1/1
N2 - A novel, low-cost and compact microwave sensor based on Electromagnetic Bandgap Structure (EBG) has been proposed to detect and sense the change in the reflection coefficient of a compact Koch fractal patch antenna for different dielectric constant liquids at 2.45 GHz ISM Band. The proposed design of a sensor is composed of a 2 × 2 array of square unit cells as an EBG plane, and a Koch modified fractal antenna designed on a specialized polymer-based Rogers 5880 substrate. A trench is etched out from the substrate in between the 2 × 2 unit cells of EBG plane to act as a microfluidic channel for deposition of the liquids. A variation in the reflection phase of an EBG plane is observed when these etched out microfluidic channels are filled with liquids of different permittivities using a patch antenna placed on it at a height of 0.082 λ 0. To verify this concept, three liquids of different dielectric properties (butan-1-ol, ethanol, and methanol) are filled in the microfluidic channels of EBG plane. A significant change in the reflection coefficient of a patch antenna is observed with good quality factor and sensitivity. Our demonstrated EBG-based sensor remarkably decrease the cost and the size of a sensing platform without compromising sensitivity and provides a route to realize highly efficient and affordable sensor for dielectric characterization in liquids and detection of contaminants in daily edible items.
AB - A novel, low-cost and compact microwave sensor based on Electromagnetic Bandgap Structure (EBG) has been proposed to detect and sense the change in the reflection coefficient of a compact Koch fractal patch antenna for different dielectric constant liquids at 2.45 GHz ISM Band. The proposed design of a sensor is composed of a 2 × 2 array of square unit cells as an EBG plane, and a Koch modified fractal antenna designed on a specialized polymer-based Rogers 5880 substrate. A trench is etched out from the substrate in between the 2 × 2 unit cells of EBG plane to act as a microfluidic channel for deposition of the liquids. A variation in the reflection phase of an EBG plane is observed when these etched out microfluidic channels are filled with liquids of different permittivities using a patch antenna placed on it at a height of 0.082 λ 0. To verify this concept, three liquids of different dielectric properties (butan-1-ol, ethanol, and methanol) are filled in the microfluidic channels of EBG plane. A significant change in the reflection coefficient of a patch antenna is observed with good quality factor and sensitivity. Our demonstrated EBG-based sensor remarkably decrease the cost and the size of a sensing platform without compromising sensitivity and provides a route to realize highly efficient and affordable sensor for dielectric characterization in liquids and detection of contaminants in daily edible items.
UR - https://ieeexplore.ieee.org/document/9044497/
UR - http://www.scopus.com/inward/record.url?scp=85085471942&partnerID=8YFLogxK
U2 - 10.1109/IBCAST47879.2020.9044497
DO - 10.1109/IBCAST47879.2020.9044497
M3 - Conference contribution
SN - 9781728146768
SP - 633
EP - 636
BT - Proceedings of 2020 17th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2020
PB - Institute of Electrical and Electronics Engineers Inc.
ER -