Antenna Multiple Input Multiple Output Four Port Using Methods Stub and Defected Ground Structure for Ultra wide-band Applications. International Journal of Wireless And Multimedia Communications, [S. l.], v. 2, n. 2, p. 20–26, 2025. DOI: 10.62671/jowim.v2i2.142. Disponível em: https://jowim.org/index.php/jowim/article/view/142. Acesso em: 1 may. 2026.