LIMA, A. M.; DE FREITAS, J. V.; LAVOR, O. P. Analysis of the Resonator Element in Different Positions in the Circular Patch Microstrip Antenna. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), [S. l.], v. 20, n. 1, p. AoP 16–29, 2020. DOI: 10.1590/2179-10742021v20i1954. Disponível em: http://www.jmoe.org/index.php/jmoe/article/view/954. Acesso em: 18 jan. 2021.