Wu, C.-Y. ., Y.-P. . Ma, and J. . Xu. “An Efficient Approach for Reducing the Complexity of Reconfigurable Antennas”. Applied Computational Electromagnetics Society Journal (ACES), vol. 30, no. 02, Aug. 2021, pp. 237-44, https://journals.riverpublishers.com/index.php/ACES/article/view/10673.