Microwave to THz properties of graphene and potential antenna applications

In this contribution, we discuss the electromagnetic properties of graphene at different frequency ranges and their potential use in antenna applications. First, Section II reviews the modeling of graphene, which is a one-atom thick layer of carbon atoms packed into a 2D lattice, as an equivalent infinitesimally thin surface. The characteristics of the associated surface conductivity and impedance are analyzed in a wide frequency band (from microwaves to infrared), and measured data of some graphene samples at millimeter waves, presented by the authors in a former work, is recalled and discussed. Then, Section III proposes simple graphene-based antennas operating at different frequencies, in the aim of highlighting the potential interest and limitations of using graphene for antennas applications.