10.57647/j.mjee.2025.17428

High Accuracy Dual Split Ring Resonator - Defected Ground Structure based Microwave Sensor for Material Characterization

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  • Mohamad Harris Misran*1,
  • Maizatul Alice Meor Said1,
  • Mohd Azlishah Othman1,
  • Siti Normi Zabri1,
  • Eliyana Ruslan1,
  • Noor Azwan Shairi1,
  • Zahriladha Zakaria1,
  • Shadia Suhaimi2,
  • Mohd Zahid Idris3,
  1. Centre for Telecommunication Research & Innovation (CeTRI), Fakulti Teknologi dan Kejuruteraan Elektronik dan Komputer (FTKEK), Universiti Teknikal Malaysia Melaka (UTeM), Hang Tuah Jaya, 76100, Durian Tunggal, Melaka, Malaysia
  2. Faculty of Business, Multimedia University, Jalan Ayer Keroh Lama, 75450 Bukit Beruang, Melaka, Malaysia
  3. Marine Engineering and ETO, Abu Dhabi Maritime Academy, 6th Streeet, Musaffah M-14, Abu Dhabi, United Arab Emirates

Received: 2025-05-07

Revised: 2025-07-17

Accepted: 0025-02-03

Published in Issue 2025-09-03

Copyright (c) 2025 Mohamad Harris Misran, Maizatul Alice Meor Said, Mohd Azlishah Othman, Siti Normi Zabri, Eliyana Ruslan, Noor Azwan Shairi, Zahriladha Zakaria, Shadia Suhaimi, Mohd Zahid Idris (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Misran, M. H., Meor Said, M. A., Othman, M. A., Zabri, S. N., Ruslan, E., Shairi, N. A., Zakaria, Z., Suhaimi, S., & Idris, M. Z. (2025). High Accuracy Dual Split Ring Resonator - Defected Ground Structure based Microwave Sensor for Material Characterization. Majlesi Journal of Electrical Engineering. https://doi.org/10.57647/j.mjee.2025.17428
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Abstract

Microwave sensors have grown in popularity in recent years because of their contactless sensing capability, real-time detection capability, measurement, accuracy, ease of manufacture and robustness. They have become one of the primary choices in smart sensing applications. However, some of their key limitations, such as accuracy, sensitivity, and selectivity, might be regarded as limiting their utilization and application range. Thus, this project proposed to design and develop a high-accuracy microwave sensor for material characterization. This microwave sensor uses Defected Ground Structure (DGS) for enhancing sensor accuracy in determining dielectric characteristics of material under test (MUT).  The sensor achieved high accuracy with a percentage error of 0.56% to 1.86% for the tested MUT, demonstrating reliable precision. The DGS significantly enhances performance, optimizing efficiency and compactness while reducing transmission losses on cost-effective substrates like FR4. Its high Q-factor of 595 enables detecting small dielectric constant variation.

Keywords

  • Microwave sensor,
  • DGS,
  • High accuracy,
  • SSR
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