Document Type
Article
Publication Date
2021
Abstract
A simple, compact, contactless, and high sensitivity metamaterial-inspired sensor has been developed to detect and classify precious transition metals in the S- and C-band regime, using reflection coefficients. A multi-band metamaterial, quadruple concentric circular split ring resonator, is specifically designed as a sensing enhancer, where the additional bands can effectively trigger the electromagnetic properties, as well as enhance the differentiation between the testing metal samples. The proposed sensor was tested on precious transition metals, silver, platinum, and gold thin slabs of various thicknesses, from 0.5 µm to 3 mm. Five resonances were established in the frequency range of 2–8 GHz. Distinguishable frequency responses generated from different metal samples at those five resonances specify the capability of classifying the metal contents and thicknesses.
Recommended Citation
Al-Duhni, Ghaleb, and Nantakan Wongkasem. 2021. “Metal Discovery by Highly Sensitive Microwave Multi-Band Metamaterial-inspired Sensors.” Progress In Electromagnetics Research B 93: 1–22. https://doi.org/10.2528/PIERB21051606
Publication Title
Progress In Electromagnetics Research B
DOI
10.2528/PIERB21051606
Comments
Original published version available at https://www.jpier.org/PIERB/pierb93/01.21051606.pdf