Abstract
In this paper, the triple reflection band split O circled T (SOCT) shape metamaterial resonator is presented based on the transmission line principle. This paper aims to develop a miniature metamaterial resonator that can simultaneously perform as a reflector and a sensing element in the microwave range. Compare to symmetric and asymmetric structures; the reflection feature is mostly available in a typical resonating structure. The primary motivation beyond the presented work is to achieve high reflection with triple resonance points at 5.8 GHz, 6.37 GHz and 6.57 GHz. The proposed structure achieved Double Negative (DNG) features on this particular resonance with a relative permittivity value ranges −2.17 to −6.62 and relative permeability of −0.73 to −4.15. The scattering parameter performance was verified through simulation and measurement for unit cell and $5\times 8$ array structure. An analytical sensing ability for liquid salinity was performed for potential microwave application, which indicates a potential outcome of the proposed structure in microwave sensing applications.
Highlights
Materials that have been using in electromagnetic or microwave application was explored based on dielectric characteristics
Composite material arranged in periodic structure shows negative indexed dielectric properties
Design-3 and design-4 contribute to the individual arrangement with the outer patch, especially at the X band
Summary
Materials that have been using in electromagnetic or microwave application was explored based on dielectric characteristics. Before the last few decades, those properties were enough to meet scientific innovation’s challenges until two great scientists, Sir John Pendry and Victor Veselago [1], who have set the world alight by inspiring ceaseless curiosity about ‘‘Metamaterial’’. Unlike conventional material, ‘‘meta (beyond)-material’’ describes the field of analysis of materials with negative permittivity (ε) and permeability (μ). Composite material arranged in periodic structure shows negative indexed dielectric properties. This concept and experimental demonstrations by smith et al [2]–[4] explored a wide range of engineered designs. We identify the material using atomic structure or physical characteristics. The metamaterial structural unit is rationally designed to achieve negative dielectric properties and it can
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