TWO DIMENSIONAL SWITCHED BEAM ANTENNA BASED ON CASCADED BUTLER MATRIX BEAMFORMING NETWORK. Nigerian Journal of Technology, [S. l.], v. 38, n. 4, p. 1003–1009, 2019. Disponível em: https://www.nijotech.com/index.php/nijotech/article/view/2139. Acesso em: 8 jun. 2026.