Tunable electromagnetic interference shield using periodic graphene-based structures in the terahertz regime

The demand for band broadening in communication devices has caused designing electronic circuits to draw numerous attentions among the research community. Recently, designing and implementation of electronic circuits have been developed in the THz and optical frequencies to achieve ultrafast responses. Thus, electromagnetic interference shields due to its protection effects against disturbances caused by adjacent elements have emerged as a vital issue in THz circuit designing. In this paper, two types of electromagnetic shields are proposed in the THz regime and shielding effectiveness calculated by using transmission line model. Comparisons indicate that the results obtained from the proposed method are in high accordance with those of CST-MWS commercial software.