DIFFRACTION OF ELECTROMAGNETIC WAVES BY A PARALLEL PLATE WAVEGUIDE WITH IMPEDANCE BOUNDARIES. Kashf Journal of Multidisciplinary Research, [S. l.], v. 3, n. 03, p. 44–62, 2026. DOI: 10.71146/kjmr870. Disponível em: https://kjmr.com.pk/kjmr/article/view/870. Acesso em: 15 may. 2026.