AN EMPIRICAL APPROACH TO DESIGN A PIFA ANTENNA. University of Khartoum Engineering Journal, [S. l.], v. 9, n. 2, 2022. DOI: 10.53332/kuej.v9i2.961. Disponível em: https://onlinejournals.uofk.edu/kuej/article/view/961. Acesso em: 8 يوليو. 2026.