Analytical Charge-Control Model for DH-HEMT
  A new and simple analytical charge-control model of the two-dimensional electron gas of a double-heterojunction AlGaAs/GaAs/AlGaAs HEMT is described. It is found that, despite its simplicity, the charge-control model gives an accurate description of the device operation for a wide range of physical parameters. The validity of the analytical model is supported by the calculated results of the self-consistent quantum mechanical model and agrees with previously reported theoretical and experimental data. The influence of some physical parameters on the device performance is also discussed. 
Petrica I. Cristea (University of Bucharest, Department of Physics,   Bucharest Magurele, MG-11, Romania)