Cylindrical Dielectric Resonator Antenna-Based Sensors for Liquid Chemical Detection


Iqbal, Amjad and Smida, Amor and Saraereh, Omar A. and Alsafasfeh, Qais H. and Mallat, Nazih Khaddaj and Lee, Byung Moo (2019) Cylindrical Dielectric Resonator Antenna-Based Sensors for Liquid Chemical Detection. Sensors, 19 (5). ISSN 1424-8220

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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 HEM11 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).

Item Type: Article
Uncontrolled Keywords: Dielectric resonator, chemical sensing, S-parameters, circuit model
Subjects: T Technology > TP Chemical technology > TP250-261 Industrial electrochemistry
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Suzilawati Abu Samah
Date Deposited: 07 Mar 2022 03:25
Last Modified: 07 Mar 2022 03:25


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