Wang, C. ., J. . Dong, X. . Shi, and H. . Yang. “A Spoof Surface Plasmon Polaritons Filter With Controllable Negative Slope Equalization Based on Surface Resistance”. Applied Computational Electromagnetics Society Journal (ACES), vol. 39, no. 06, June 2024, pp. 542-7, doi:10.13052/2024.ACES.J.390608.