KOŁODZIEJ, Jacek; WINCZA, Krzysztof; STASZEK, Kamil; GRUSZCZYŃSKI, Sławomir. Compact Broadband Rat-Race Coupler in Multilayer Technology Designed with the Use of Artificial Right- and Left-Handed Transmission Lines. Journal of Telecommunications and Information Technology, [S. l.], v. 48, n. 2, p. 107–112, 2012. DOI: 10.26636/jtit.2012.2.1271. Disponível em: https://jtit.pl/jtit/article/view/1271. Acesso em: 1 jun. 2026.