Abstract
Based on generalized Snell's law, we propose an ultrathin directional carpet cloak operating in the reflection geometry. The cloak is constructed by two identical ultrathin metal-backed dielectric slabs with metallic “H” patterns on the other sides to form a triangular region. When put on an infinite ground plane and illuminated by electromagnetic waves from overhead, it can manipulate the reflected wavefronts to mimic the infinite ground plane. We fabricate a microwave sample and perform near-field scanning experiments to verify the cloaking effect. The measurement results are in good agreement with full-wave simulations and theoretical analysis.
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