The Design of the Conformal Electromagnetic Stealth Meta-surface for Arbitrary NURBS Curved Surfaces

Abstract

The conformal design of electromagnetic stealth meta-surface that suitable for arbitrary curved surface objects has been lack of study so far. Based on stationary phase method, which is a detailed technology of physical optics theory, a new “projection mapping method” is given, which is suitable for the meta-surface design for arbitrary NURBS (Non-uniform rational B-spline) surfaces. The RCS (radar cross-section) between the meta-surface and the PEC (perfect electric conductor) surface with the same shape are compared through the simulation. It's also compared with the planar meta-surface with the same patch array structure qualitatively. Then the effective frequency band is verified, and the further improvement suggestions are proposed.