Designing approach of terahertz broadband backscattering reduction based on combination of diffusion and absorption

An absorptive coding metasurface for ultra-wideband radar cross-section reduction

“…Though the absorption and diffusion are the two different means of achieving RCS reduction, the two means can be carried out simultaneously based on a proper lossy metasurface. Thus, in recent years, a number of absorptive coding metasurfaces (ACMs) have been proposed [25][26][27][28][29][30][31][32][33][34][35][36][37][38] , which could achieve RCS reduction by means of both absorption and diffusion.…”