Abstract
We present refinements to a previously validated HEMT model that improves the model's accuracy as a function of drain bias for simulating d.c. drain current and 1–50 GHz, small-signal S-parameters. By comparing simulation data with experimental data for a 0.4-μm-gate pseudomorphic HEMT, we have been able to establish the accuracy of the refined model, which predicts the device's d.c. current and S-parameters as a function of the applied drain and gate biases to within an accuracy of ~5%. The core of the model and, in particular, its bias dependence, are directly dependent on the HEMT wafer structure and the physical gate length.
Original language | English |
---|---|
Pages (from-to) | 213-216 |
Number of pages | 4 |
Journal | IEEE Transactions on Microwave Theory and Techniques |
Volume | 43 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1995 |