YANG, Q. .; LIU, S. .; XU, K.-D. .; ZHANG, A. . Compact Octa-band Bandpass Filter based on Controllable Transmission Zeros with Wide Upper Stopband. Applied Computational Electromagnetics Society Journal (ACES), [S. l.], v. 36, n. 09, p. 1159–1163, 2021. Disponível em: https://journals.riverpublishers.com/index.php/ACES/article/view/12129. Acesso em: 14 jul. 2024.