Analytic Model for Conduction Current in AlGaN/GaN HFETs/HEMTs

Figure 3

Various v-E models: two-piece velocity model (green), two-field model (blue) and 𝑣(𝐸) as in (1) for 𝛽=0.8,2,100 (red). 𝛽=0.8 fits the two-field model.