EDMUND K. MILLER. Using a Radial, Switchable, Sector Ground Screen to Produce Azimuthal Directivity for a Monopole Antenna. Applied Computational Electromagnetics Society Journal (ACES), [S. l.], v. 31, n. 11, p. 1293–1296, 2021. Disponível em: https://journals.riverpublishers.com/index.php/ACES/article/view/9827. Acesso em: 13 may. 2026.