Analysis of Graphene-Based Microstrip Structures

Abstract

This paper focuses on the analysis of microstrip structures with graphene material as the conducting strip using two numerical methods, spectral domain technique and method of lines. The conductivity of graphene sheet is modeled in the analytical method using a tensor matrix. The results obtained from the above-mentioned methods are compared with those of commercial COMSOL modeling software. The structure is parametrically studied to investigate the effects of chemical potential and magnetic field bias on its behavior. The considered structures demonstrate attractive characteristics such as tunablility of dispersion and characteristic impedance as functions of chemical potential and magnetic bias, which can be used in new microwave applications. These characteristics have not been observed in the ordinary microstrip line structures.

Keywords

• Graphene
• microstrip
• transmission line
• spectral domain method
• method of lines