Broadband 3D metamaterial carpet cloak

We propose and demonstrate ultra-broadband three dimensional carpet cloaking for full polarization. A non-resonant metamaterial, which exhibits broadband magnetic and electric anisotropy with little dispersion, is used as a main building block in the cloak design. Nearly perfect cloaking performance is confirmed over a broad bandwidth with frequency scanning measurement. In particular, the experimental result shows that phase is well preserved by the cloak.