OSAMA M. HARAZ; ABDEL-RAZIK SEBAK. Novel UWB Trapezoidal and Butterfly Shaped Microstrip Phase Shifters Using Multilayered PCB Technology. Applied Computational Electromagnetics Society Journal (ACES), [S. l.], v. 31, n. 11, p. 1309–1314, 2021. Disponível em: https://journals.riverpublishers.com/index.php/ACES/article/view/9833. Acesso em: 13 may. 2026.