MA, L. .; WANG, L. .; CHEN, X. . Design of 4×4 Multi-layer Butler-like Matrix with Flexible Phase Differences and Filtering Integration for 5G Applications. Applied Computational Electromagnetics Society Journal (ACES), [S. l.], v. 40, n. 02, p. 130–137, 2025. DOI: 10.13052/2025.ACES.J.400206. Disponível em: https://journals.riverpublishers.com/index.php/ACES/article/view/24787. Acesso em: 2 jun. 2026.