Wang, Y. ., B. . Wei, and K. . Fan. “Analysis of Transmission Characteristics of EBG Structures by Subgridding Unconditionally Stable FETD Method”. Applied Computational Electromagnetics Society Journal (ACES), vol. 37, no. 09, Sept. 2022, pp. 921-32, doi:10.13052/2022.ACES.J.370901.