Experimental demonstration of a conformal mantle cloak for radio-waves

We present the first experimental realization and verification of a stand-alone 3D mantle cloak designed to suppress the total scattering of a finite-length dielectric rod. Mantle cloaking has been theoretically proposed as a convenient way to realize ultralow-profile, conformal covers to achieve complete camouflaging, transparency and non-invasive near-field sensing. After theoretically analyzing, designing and realizing a mantle cloak working for all polarizations and incidence angles, we have conducted an extensive campaign of near-field and far-field free-space measurements verifying strong suppression of scattering in all directions and over a relative broad bandwidth. The measured results agree well with analytical theory and full-wave simulations.