A Novel Cesaro Fractal EBG-Based Sensing Platform for Dielectric Characterization of Liquids

Ali Arif, Amna Zubair, Kashif Riaz, Muhammad Qasim Mehmood, Muhammad Zubair

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


This article presents a compact, cost-effective, and contactless fractal modified electromagnetic bandgap structure (EBG)-based microwave sensing platform for dielectric characterization of liquids by analyzing the variation in the reflection coefficient of an antenna. The reported design is composed of a triangular-shaped antenna ( 0.323lambda _{mathrm {o}}times 0.323lambda _{mathrm {o}} ) placed over a 3 times 3 array of Cesaro fractal-based EBG plane ( 0.67lambda _{mathrm {o}} times 0.67lambda _{mathrm {o}} ) operating at 2.45 GHz. A significant enhancement of the {E} -field in the sensing region has been achieved with the incorporation of Cesaro fractals in the EBG plane which results in increased sensitivity and compactness. To validate its performance, absolute solutions of butan-1-ol, methanol, and water are loaded, and a maximum measured sensitivity of 0.875% and a maximum quality factor of 90.05 are achieved. Moreover, a maximum rms error in retrieved values of dielectric constant and loss tangent of liquid under test is found to be 1.092% and 0.813%, respectively. Our demonstrated EBG-based sensor has a compact footprint with good precision, affordability, and ease of operation in detecting liquids for microwave sensing applications.
Original languageEnglish (US)
Pages (from-to)2887-2895
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Issue number5
StatePublished - May 1 2021
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-20


Dive into the research topics of 'A Novel Cesaro Fractal EBG-Based Sensing Platform for Dielectric Characterization of Liquids'. Together they form a unique fingerprint.

Cite this