Zhou, Y. ., Yao, K. ., Li, X. ., Huang, Y. M. . and Jin, H. . (2023) “Phase-shifter-less Vortex Electromagnetic Wave Generation Technology with Tunable Topological Charge/Steering Angle under Random Initial Phase Condition of Phase-locked Source”, Applied Computational Electromagnetics Society Journal (ACES), 38(2), pp. 154–161. doi: 10.13052/2023.ACES.J.380210.