Pankaj Kumar Singh, Amit Sehgal, and Dinesh Kumar Singh. “Design of Compact MIMO Antenna for 5G/Ultra-Wideband Communications”. Journal of Electronic Design Engineering, vol. 4, no. 3, Nov. 2018, pp. 8-14, http://matjournals.co.in/index.php/JOEDE/article/view/6738.