ZAMIR, B.; ZEESHAN NASEER; BABAR SHAHZAD. Electromagnetic wave propagation in a rectangular waveguide filled with a double-negative (DNG) metamaterial. Research Prospects in Natural Sciences (RPNS), [S. l.], v. 2, n. 1, p. 13–17, 2024. Disponível em: https://journals.gctownship.edu.pk/index.php/rpns/article/view/98. Acesso em: 19 jan. 2026.