%0 Journal Article
%T Microwave and millimeterwave electrical permittivity of graphene monolayer
%A Alina Cismaru
%A Mircea Dragoman
%A Adrian Dinescu
%A Daniela Dragoman
%A G. Stavrinidis
%A G. Konstantinidis
%J Physics
%D 2013
%I arXiv
%X The effective electrical permittivity of a graphene monolayer is experimentally investigated in the 5-40 GHz range, which encompasses the microwave and the lower part of millimeterwave spectrum. The measurements were carried out using a coupled coplanar waveguide placed over a graphene monolayer flake, which is deposited on Si/SiO2. In contrast to some initial predictions, the effective permittivity of the graphene monolayer is slightly decreasing in the above-mentioned frequency range and has an average value of 3.3.
%U http://arxiv.org/abs/1309.0990v1