MALEKI, M. .; NOURINIA, J. .; ZEHFOROOSH, Y. .; RAFII, V. . A Compact Planar 90° Branch Line Coupler Using S-Shaped Structure Loading for Wideband Application. Applied Computational Electromagnetics Society Journal (ACES), [S. l.], v. 28, n. 07, p. 597–601, 2021. Disponível em: https://journals.riverpublishers.com/index.php/ACES/article/view/11517. Acesso em: 12 may. 2026.