Physical structure-based small signal modeling for GaN Fin-HEMTs. - Ziyue Zhao 003; Yang Lu; Chupeng Yi; Ting Feng 002; Xin Liu 063; Wei Zhao; Guanghai Yao; Yilin Chen; Xiaohua Ma 001; Yue Hao 001 (Sci. China Inf. Sci., 2026)