PREMATHILAKE, T.; JAYASINGHE, J.; SARAEREH, . O.; ESSELLE, K.; KHOKLE, R. High Directivity Broadband Hexagonal Fractal Ring Antenna with Modified Ground. ECTI Transactions on Electrical Engineering, Electronics, and Communications, [S. l.], v. 18, n. 1, p. 1–8, 2020. DOI: 10.37936/ecti-eec.2020181.239914. Disponível em: https://ph02.tci-thaijo.org/index.php/ECTI-EEC/article/view/239914. Acesso em: 5 may. 2024.