VEYSI, M. .; JAFARGHOLI, A. . Directivity and Bandwidth Enhancement of Proximity-Coupled Microstrip Antenna Using Metamaterial Cover. Applied Computational Electromagnetics Society Journal (ACES), [S. l.], v. 27, n. 11, p. 925–930, 2021. Disponível em: https://journals.riverpublishers.com/index.php/ACES/article/view/12315. Acesso em: 13 may. 2026.