Mesfet subthreshold characteristics

Vds 1 0
vids 1 2 dc 0
Vgs 3 0 dc 0

z1 2 3 0 mesmod area=1.4

.model mesmod nmf level=1 rd=46 rs=46 vt0=-1.3
+ lambda=0.03 alpha=3 beta=1.4e-3
* z1 2 3 0 lev2 l=1u w=20u
* .model lev2 nmf level=2 d=0.12u mu=0.23 vs=1.8e5
*+ m=3.3 vto=-1.3 eta=1.82 lambda=0.044 sigma0=0.09
*+ vsigma=0.1 vsigmat=0.9 rdi=46 rsi=46 delta=5
*+ nd=2.1e23

.end