In this paper, we have quantitatively evaluated the effective surface conductivity of chemical vapor deposition-grown graphene through a full-wave electromagnetic method and also investigated the intrinsic characteristics of the transmission line (TL) of the graphene at frequency ranging from 0.5 to 40 GHz. According to the simulated data based on the measured S-parameters, the effective conductivity of single- and multi-layer graphene (MLG) was about 4.3 × 10 6S/m and 1.2 × 10 6S/m, respectively. Furthermore, we confirm that multi-layer graphene is more suitable for use in transmission lines compared to single-layer graphene in the observed frequency region.
Bibliographical noteFunding Information:
This work was supported by Priority Research Centers Program and the Mid-career Researcher Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2011-0018395, 2011-0027577), and by the Technology Innovation Program (industrial strategic technology development program,10035430, development of reliable fine-pitch metallization technologies) funded by the Ministry of Knowledge Economy (MKE, Korea).
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)