Cui, K. ., D. . Shi, C. . Sun, and X. . Liu. “A Compact and High-Performance Shielding Enclosure by Using Metamaterial Design”. Applied Computational Electromagnetics Society Journal (ACES), vol. 36, no. 11, Dec. 2021, pp. 1484-91, doi:10.13052/2021.ACES.J.361113.