Split ring resonator based sensor for material characterization

Neo, Shun Yong (2022) Split ring resonator based sensor for material characterization. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

In these few years, measuring the electromagnetic properties of materials has important applications in many fields due to its wide application in all walks of life in today's material characterization research. In this project, split ring resonator (SRR) are proposed to measure the permittivity of small samples of unknown materials. Strikingly, measuring the electromagnetic properties of materials technology has matured and has undergone multi-faceted investigations. Many industries require accurate material characterization tools, such as the food industry, quality control, chemical composition analysis, and biological sensing. These accurate instruments have the ability to understand the characteristics of materials based on chemical, physical, magnetic and electrical composition characteristics. However, these types of sensors have various well-known limitations, including high manufacturing costs due to complex design structures and large sizes. Consequently, the design of the split ring resonator was introduced and investigated to accurately measure the material performance characterization. Through different offset resonant frequencies instead of a single frequency and polynomial fitting method, the proposed sensor can accurately calculate the unknown dielectric constant. In addition, find out a suitable shape of split ring resonator by studying split ring resonators of different shapes. The resonant frequency of simulation and experiment is 3.5GHz will verify the effectiveness of the proposed method and design. Various standard dielectrics test the sensitivity of the material under test (such as Roger 5880, Roger 4350, Roger 3010 and FR4) to verify that it is a promising low-cost, compact size, easy-to-manufacture and small MUT that can be used in applications that require new sensing technology for quality and control industries.

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