The Conductivity of Unidirectional and Quasi Isotropic Carbon Fiber Composites

This paper describes a novel technique to predict the variation of the conductivity of carbon fiber reinforced polymer versus frequency. Free space transmission/reflection and radar cross section measurements are utilised to confirm this prediction. The results indicate that the conductivity of unidirectional carbon-fiber is dependent on the polarization of the incident electric field and increases with increasing frequency for a particular polarization.