Dai, Guoxiang, Xiaofei Xu, and Xiao Deng. 2021. “Size-Reduced Equilateral Triangular Metamaterial Patch Antenna Designed for Mobile Communications”. The Applied Computational Electromagnetics Society Journal (ACES) 36 (08):1026-30. https://journals.riverpublishers.com/index.php/ACES/article/view/11767.