The Design of Conformal and Chaotic Electromagnetic Stealth Metasurface for Arbitrary NURBS Curved Surfaces

The conformal design of electromagnetic stealth metasurface that suitable for arbitrary curved surface objects has been lack of study so far. Based on stationary phase method and chaotic distributed scattering, which is a detailed technology of physical optics theory, a new “chaotic projection mapping method” is given to design the metasurface for arbitrary NURBS (Non-uniform rational B-spline) surfaces. Aiming at the difficulties of electromagnetic analysis in the target-oriented design of curved metasurfaces, a new design process with the stealth frequency bands as origin is proposed. The RCS (radar cross section) reduction effect relative to the PEC (ideal electrical conductor) surface of the same shape is analyzed through simulation to verify the effectiveness of this design process.