US Patent 9622338 Frequency selective structures for EMI mitigation

According to various aspects, exemplary embodiments include one or more frequency selective structures (e.g., two-dimensional or three-dimensional frequency selective structure or surface, etc.), which may be used for shielding or mitigating EMI within open or closed structures. Also disclosed are methods of using one or more frequency selective structures for shielding or mitigating electromagnetic interface (EMI) within open or closed structures.