Zamir, B., Zeeshan Naseer, & Babar Shahzad. (2023). Electromagnetic wave propagation in a rectangular waveguide filled with a double-negative (DNG) metamaterial. Research Prospects in Natural Sciences (RPNS), 1(2), 9–13. Retrieved from https://journals.gctownship.edu.pk/index.php/rpns/article/view/98