Kai Yu, Yingsong Li, and Xiaoguang Liu. 2021. “Mutual Coupling Reduction of a MIMO Antenna Array Using 3-D Novel Meta-Material Structures”. The Applied Computational Electromagnetics Society Journal (ACES) 33 (07):758-63. https://journals.riverpublishers.com/index.php/ACES/article/view/9069.