Development and Characterisation of Compact Wide-band Rejection Metamaterial Filters Using Triangular and Elliptic Split-Ring Resonators

Abstract

Because of its remarkable electromagnetic properties, the artificial substance known as metamaterial has led to important advancements in designing microwave components. In communications systems, filters are extremely essential. As a result, innovative band-stop microwave filters are suggested in this article. These filters are based on microstrip technology and split-ring resonators (SRR) with triangular, and elliptic geometrical forms, where the metamaterial effect can be established using this process. Furthermore, these filters are considered using one, two, and three SRRs cells, in order to have different bandstop widths. Because of its simplicity, edge coupling is the feeding technique chosen for this study. these structures are engineered and configured to operate within the S-band. The simulation findings reveal that changing the geometrical shape of the loops has a significant impact on the filter's features. to further study, these impacts a quantitative comparison involving the two shapes and the use of a different number of SRRs cells conducted. The findings show that these filters are well suited to a wide range of wireless communication systems depending on the wanted filter size, the range of the rejection band, and the electromagnetic properties.