Reconfigurable Dual Band Antenna using Varactor Diode. International Journal of Information System and Innovative Technology, [S. l.], v. 4, n. 2, p. 11–18, 2025. DOI: 10.63322/1epsgh59. Disponível em: https://ejournal.gevivapublisher.org/index.php/ijisit/article/view/84.. Acesso em: 5 feb. 2026.