MISHAN, Viktor, et al. “MIMO ANTENNA ARRAY WITH DIRECTIONAL DIAGRAM SPREAD FOR 5G SMARTPHONES”. Herald of Khmelnytskyi National University. Technical Sciences, vol. 315, no. 6(1), Dec. 2022, pp. 139-42, https://doi.org/10.31891/2307-5732-2022-315-6-139-142.