Next Article in Journal
Calculation Method for Phenotypic Traits Based on the 3D Reconstruction of Maize Canopies
Next Article in Special Issue
A Patch/Dipole Hybrid-Mode Antenna for Sub-6GHz Communication
Previous Article in Journal
Hydrogel-Based Sensors for Ethanol Detection in Alcoholic Beverages
Previous Article in Special Issue
Left-Handed Metamaterial-Inspired Unit Cell for S-Band Glucose Sensing Application
Open AccessArticle

Cylindrical Dielectric Resonator Antenna-Based Sensors for Liquid Chemical Detection

Centre for Wireless Technology (CWT), Faculty of Engineering, Multimedia University, Cyberjaya 63100, Malaysia
Department of Medical Equipment Technology, College of Applied Medical Sciences, Majmaah University, AlMajmaah 11952, Saudi Arabia
Unit of Research in High Frequency Electronic Circuits and Systems, Faculty of Mathematical, Physical and Natural Sciences of Tunis, Tunis El Manar University, Tunis 2092, Tunisia
Department of Electrical Engineering, Hashemite University, Zarqa 13115, Jordan
Department of Electrical Power and Mechatronics Engineering, Tafila Technical University, Tafila 11183, Jordan
College of Engineering, Al Ain University of Science and Technology, Al Ain 64141, UAE
School of Intelligent Mechatronics Engineering, Sejong University, Seoul 05006, Korea
Authors to whom correspondence should be addressed.
Sensors 2019, 19(5), 1200;
Received: 23 February 2019 / Accepted: 5 March 2019 / Published: 8 March 2019
(This article belongs to the Special Issue Antenna Technologies for Microwave Sensors)
A compact, cylindrical dielectric resonator antenna (CDRA), using radio frequency signals to identify different liquids is proposed in this paper. The proposed CDRA sensor is excited by a rectangular slot through a 3-mm-wide microstrip line. The rectangular slot has been used to excite the CDRA for H E M 11 mode at 5.25 GHz. Circuit model values (capacitance, inductance, resistance and transformer ratios) of the proposed CDRA are derived to show the true behaviour of the system. The proposed CDRA acts as a sensor due to the fact that different liquids have different dielectric permittivities and, hence, will be having different resonance frequencies. Two different types of CDRA sensors are designed and experimentally validated with four different liquids (Isopropyl, ethanol, methanol and water). View Full-Text
Keywords: dielectric resonator; chemical sensing; S-parameters; circuit model dielectric resonator; chemical sensing; S-parameters; circuit model
Show Figures

Figure 1

MDPI and ACS Style

Iqbal, A.; Smida, A.; Saraereh, O.A.; Alsafasfeh, Q.H.; Mallat, N.K.; Lee, B.M. Cylindrical Dielectric Resonator Antenna-Based Sensors for Liquid Chemical Detection. Sensors 2019, 19, 1200.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

Back to TopTop