HAYATI, M. .; VAZIRI, H. S. . Wide Stop-Band Microstrip Lowpass Filter with Sharp Roll-off Using Hairpin Resonators. Applied Computational Electromagnetics Society Journal (ACES), [S. l.], v. 28, n. 10, p. 968–975, 2021. Disponível em: https://journals.riverpublishers.com/index.php/ACES/article/view/11373. Acesso em: 13 may. 2026.