Design and implementation of a patch-fractal antenna with phase control using Butler matrix. MASKAY, [S. l.], v. 14, n. 2, p. 17–24, 2024. DOI: 10.24133/maskay.v14i2.3497. Disponível em: https://journal.espe.edu.ec/ojs/index.php/maskay/article/view/3497. Acesso em: 8 dec. 2025.