KRONGKITSIRI, W.; KRONGKITSIRI, P.; JURAJATURASIRARATANA, S. A Wideband Bandpass Filter with Stepped Impedance Resonator on Microstrip . Journal of Advanced Development in Engineering and Science, Babgkok, Thailand, v. 8, n. 22, p. 73–83, 2023. Disponível em: https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/904. Acesso em: 7 dec. 2025.