A study on basic RF characteristics of transmission lines employing various types of ground structures on silicon substrate for a decision of optimal periodic ground structure

In this paper, various types of transmission lines employing the periodically arrayed ground structure (PAGS) were fabricated on silicon substrate, and their RF characteristics were thoroughly investigated for a decision of optimal structure design. According to the results, with-contact showed wavelength shorter than other types of transmission lines and insertion loss value lower than other types of transmission lines. In addition, with-contact showed effective permittivity and propagation constant value higher than other types of transmission lines. Above results indicate that the with-contact is most appropriate for application to a miniaturization of RF components on silicon substrate.