KUMAR, V.; WU, Y. Metamaterial Based Circular Disc Patch Antenna Miniaturization. Advanced Electromagnetics, [S. l.], v. 7, n. 5, p. 137–144, 2018. DOI: 10.7716/aem.v7i5.841. Disponível em: https://www.aemjournal.org/index.php/AEM/article/view/841. Acesso em: 25 dec. 2025.