The reconfigurable graphene metasurfaces for multi-scenario electromagnetic camouflage

In the paper, we propose the reconfigurable dihedral camouflage graphene meta-surface and flexible camouflage graphene meta-surface carpet for obtaining multi-scenario electromagnetic camouflage. Through tuning the Fermi energy of the units, the graphene metasurfaces are capable of incorporating the electromagnetic scattering characteristics of the target into the background environment and make it hard to separate the target from the background. Such graphene meta-surfaces will generate the quasi-specular reflection when locate over the nearly flat ground, and mimic the diffused reflections over the ground with high surface roughness, and realize the partially specular reflection and partially diffused reflection simultaneously when locate the ground with low surface roughness. Our design should pave the way for the land-based electromagnetic camouflage.