MA, Y. .; CHE, W. .; FENG, W. .; CHEN, J.-X. . Square Dual-Mode Quasi-Elliptic Bandpass Filter with Wide Upper Stopband. Applied Computational Electromagnetics Society Journal (ACES), [S. l.], v. 28, n. 11, p. 1056–1060, 2021. Disponível em: https://journals.riverpublishers.com/index.php/ACES/article/view/11315. Acesso em: 13 may. 2026.