SURFACE IMPEDANCE OF THIN GRAPHITE FILMS AT MICROWAVE FREQUENCIES

Yuriy M. Penkin, Viktor A. Katrich, Mikhail V. Nesterenko, Dmitriy Yu. Penkin
2018 Progress In Electromagnetics Research M  
Surface impedance of thin graphite films with metallic properties is evaluated by a waveguide technique based on measuring reflection and transmission coefficients of thin film membranes at operating frequencies in rectangular waveguides. One-and two-layer membranes of finite thickness, completely filling the waveguide cross-section, are investigated. Formulas allowing analytical estimates of surface impedances for nonmagnetic films made of amorphous carbon are derived. Simulation results for
more » ... aphite films at frequencies from 5 to 10 GHz are analyzed.
doi:10.2528/pierm18053003 fatcat:bq55yizorfealcxddbt6tw4zjy