MOHSIN, Noor K.; NAJI, Dhirgham K. Antenna Design for Ultra-Wideband System Using a Fractal H-Shaped Structure for Enhanced Filtering and Narrowband Operation. Al-Nahrain Journal for Engineering Sciences, [S. l.], v. 28, n. 4, p. 515–523, 2025. DOI: 10.29194/NJES.28040515. Disponível em: https://nahje.com/index.php/main/article/view/1416.. Acesso em: 28 dec. 2025.