Machine-Learning-Driven 3D Antenna Design for Energy-Efficient HAPS in Smart Cities. International Journal of Recent Technology and Engineering (IJRTE), [S. l.], v. 14, n. 5, p. 19–29, 2026. DOI: 10.35940/ijrte.E8325.14050126. Disponível em: https://journals.blueeyesintelligence.org/index.php/ijrte/article/view/994.. Acesso em: 31 jan. 2026.