นามแสง อ. . A Bandpass Filter Using Symmetrical Coplanar Structure without backed ground plane. Journal of Engineering, RMUTT, [S. l.], v. 2, p. 64–68, 2002. Disponível em: https://ph01.tci-thaijo.org/index.php/jermutt/article/view/242373. Acesso em: 19 may. 2024.