Jin-Xu Xu, Hang Chen, Wenhua Chen, Xiu Yin Zhang. Broadband Doherty Power Amplifier Using Short Ended λ/4 Transmission Lines Based on the Analysis of Negative Characteristic Impedance. IEEE Trans. Circuits Syst. I Regul. Pap., 70(2):545-555, February 2023. [doi]
Abstract is missing.