SWADI ABDULLAH, Abdulkareem; JASIM FARHAN, Malik. A Novel Heptagonal Slot Antenna for Ultra Wideband Wireless Communication Applications. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 18, n. 6, p. 59–76, 2014. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/876.. Acesso em: 3 apr. 2025.