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Liu, Yong-Qiang, Kainan Qi, Yongxing Che, and Hongcheng Yin. "An Ultra-Wideband Double-Layer Microwave Metalens with Reverse Dispersion Characteristic." 2023 International Applied Computational Electromagnetics Society Symposium (ACES-China), Applied Computational Electromagnetics Society Symposium (ACES-China), 2023 International 2023: 1-3. https://doi.org/10.23919/ACES-China60289.2023.10249779.

Liu, Yong-Qiang, et al. "An Ultra-Wideband Double-Layer Microwave Metalens with Reverse Dispersion Characteristic." 2023 International Applied Computational Electromagnetics Society Symposium (ACES-China), Applied Computational Electromagnetics Society Symposium (ACES-China), 2023 International, 2023, pp. 1-3, https://doi.org/10.23919/ACES-China60289.2023.10249779.