MOHAMMED, J. R.; KHAMEES, A. A. Analysis of Performance Improvement of Planar Antenna Arrays With Optimized Square Rings for Massive MIMO Applications. Journal of Electronics and Electrical Engineering, Singapore, v. 3, n. 1, p. 166–173, 2024. DOI: 10.37256/jeee.3120244146. Disponível em: https://ojs.wiserpub.com/index.php/JEEE/article/view/4146. Acesso em: 7 jul. 2024.