A transparent electromagnetic-shielding film based on one-dimensional metal–dielectric periodic structures Project supported by the International Science & Technology Cooperation Program of China (Grant No. 2014DFR10020) and the Science Foundation of Shanxi Province, China (Grant Nos. 201701D121050 and 201701D121007). |
(color online) Real and imaginary parts of the effective permittivity for thickness ratios of 1:1, 1:2, 1:3, and 1:4. |