5-Characterization of Unite Cell Metamaterial Transmission Line for Bandstop and Bandpass Applicattions

In recent years, a new type of artificial materials called metamaterials has attracted the attention of many researchers. Metamaterials have a wide range of potential uses in communication areas such as optical and RF design. The metamaterial is a material engineered to have an electromagnetic property that is not found in nature. In the following, by implementing this structure on microstrip transmission line, it can be configured as a bandpass or bandstop filter. In this project, a unit cell of the metamaterial transmission line will be designed and characterized to be implemented as bandstop and bandpass filter. Afterward, the parametric studies of the filter performances will be investigated in term of a number of unit cell, a different configuration of unit cell and the different arrangement of unit cell in one structure. In addition, combination of bandstop and bandpass filter in one structure will be also studied. The characterization of the unit cell model will be done using CST software while the measurement is done by using Vector Network Analyses (VNA). The significant contributions of this research work are the characterization of unit cell metamaterial transmission line models and fundamental metamaterial transmission line filter configuration that can be used for performances optimization. Finally, this study will contribute to knowledge benefit both academia and industry especially for future RF filter technology.