Metamaterials can shrink the size of cellphones, radios and radar equipment
NIST researchers have made metafilms of both yttrium iron spheres (right, each about 50 millimeters in diameter) embedded in a matrix, and tiny copper squares etched on a wafer (above). Credit: (Top) C. Holloway/NIST, (Right) © Geoffrey Wheeler National Institute of Standards and Technology has demonstrated that thin films made of “metamaterials”—manmade composites engineered to …