Low cost, simple and broad band radar cross section reduction by modulated and holography metasurfaces

Abstract

In this paper, the design and fabrication of modulated metasurfaces is proposed to achieve a wideband monostatic radar cross section (RCS) reduction. This structure is composed of holography and modulated surface tiles arranged in checkerboard configurations where the holography surface converts the incoming wave into the surface waves and the modulated surface redirects it into the other directions rather than the normal one. This surface reduces the RCS more than 10 dB from 11.57–26.1 GHz (77%) for normal incidence. Using only one low cost commercially available FR-4 substrate layer in this surface facilitates its applications rather than the state-of-the-art RCS reduction references.