Xinyue Dai, Tingting Sun, Wenxuan Wu, Zhen Wang, Guanghua Shi, Qian Yang, Cheng Guo, Anxue Zhang. A 0.22-26.5-GHz Ultra-Wideband Directional Coupler Based on Copper Additive Manufacturing. IEEE Trans. Circuits Syst. II Express Briefs, 70(8):2869-2873, August 2023. [doi]
Abstract is missing.