Surmounting W-band Scalar Load-Pull Limitations Using the ASM-HEMT Model for Millimeter-Wave GaN HEMT Technology Large-Signal Assessment

This paper presents for the first time an accurate ASM-HEMT model for millimeter-wave GaN HEMT technology validated with W-band scalar load-pull and power sweep measurements. The accurate model is used to predict the optimal performance of a GaN HEMT with operating conditions beyond the limitations of the scalar W-band load-pull system. The GaN HEMT measurements exhibits a peak PAE of 35% and the ASMHEMT model predicts a peak PAE of 42%.