A compact and monolithically integrable 140 GHz InP HEMT fundamental mixer using 80-nm T-gate technology for terahertz receiver front-ends. - Xu Han; Haomiao Wei; Yuxuan Chen; Yifei Xie; Cong Zhang; Yongheng Gong; Feng Yang; Tong Liu; Shengxiang Liu; Jia Sun; Zhi Jin 001; Yong Zhang; et al. (IEICE Electron. Express, 2026)