Radar Cross Section Reduction Simulation of Cylindrical Object using Cobalt coated Multiwalled Carbon Nanotubes /Polyurethane based Radar Absorbing Composites

Radar is an active detection device and since its evolution various techniques for reducing electromagnetic signature have been explored. This paper focuses on the Radar Cross Section (RCS) reduction using Radar Absorbing Materials (RAM) from stealth targets which affect the survivability and mission compatibility. The Scattering parameters are used to calculate the complex permittivity and complex permeability parameters using Nicolson-Ross Weir method. The RCS of Perfect Electric Conductor (PEC) cylinder and Cobalt coated Multi Walled Carbon Nanotubes composite coated cylinder have been simulated at 10.5GHz frequency range using Microwave Computer Simulation Technology (CST) Studio Suite. The maximum RCS of Cobalt coated Multi Walled Carbon Nanotubes coating cylinder is −16.9dBsm at 90° aspect angle while RCS of Perfect Electric Conductor cylinder is −8.6dBsm at 90° aspect angle. It is observed that the simulated results of RAM coated cylinder have better RCS than uncoated cylinder.