Wei, G. ., Y. . Wang, J. . Liu, and H. . Li. “A Miniaturized UWB Bandpass Filter Employing Multi-Stub-Loaded Short-Circuited Stepped Impedance Ring Resonator”. Applied Computational Electromagnetics Society Journal (ACES), vol. 38, no. 07, July 2023, pp. 496-02, doi:10.13052/2023.ACES.J.380705.