Zhang, H. ., Z. . Chen, and T. . Liu. “Synthesis and Design of a Wideband Filtering Impedance Transformer and Its Application As a Power Divider”. Applied Computational Electromagnetics Society Journal (ACES), vol. 41, no. 04, Apr. 2026, pp. 367–375, doi:10.13052/2026.ACES.J.410409.