RF Characterization of Multi-walled carbon nanotube and ZnO film

Growing interests on carbon nanotubes (CNTs) and ZnO film let us consider radio frequency characteristics for future employment in electronic devices. Prior to the deployment and development for RF devices, the fundamentals about two materials are investigated. Multi-walled CNTs are characterized up to 50 GHz. Using the measured S-parameters Telegrapher's equivalent circuit models are extracted. And, for the ZnO film the equivalent circuit parameters are obtained as well. The circuit parameters provide the useful criterion to evaluate RF performance.