Wideband Radar Cross Section Reduction Using Parabolic Phased Metasurfaces

This article presents a fast and efficient metasurface design approach without using time-consuming optimization algorithms, for wide-angle low scattering applications wideband radar-cross-section (RCS) reduction. Using ray-tracing theory by engineering the proposed metasurfaces to exhibit diffusive parabolic phase distribution across its aperture at frequencies other than center frequency ( f = 18 GHz), significantly diffused backscattering is guaranteed redirecting reflected energies over all directions wide range of frequencies. Based on approach, behavior with distributions from 1 xmlns:xlink="http://www.w3.org/1999/xlink">f 20 were carefully investigated. Numerical experimental results both demonstrated that profile 5 extremely powerful in distributing energy more uniformly profile. The designed achieved 10-dB monostatic/bistatic RCS reduction 12 24 GHz (66.7%) even off-normal incidence up 60°. can overcome inherent challenges ensuring angle conventional chessboard coding literature.