Simple analytical model of a GaN MODFET to study its DC and RF performance
By: Shit, Prabir Kumar
.
Contributor(s): Pal, Radha Raman.
Publisher: New Delhi CSIR 2022Edition: Vol.60(5), May.Description: 395-400p.Subject(s): Humanities and Applied SciencesOnline resources: Click here
In:
Indian journal of pure & applied physics (IJPAP)Summary: This work presents a theoretical study of a GaN MODFET considering accurate velocity field relation of GaN for a wide range of electric field. The analytical expression of different DC parameters such as drain current, mutual conductance and drain conductance of the device has been derived and their variation over different field regions has been investigated. This work has also been extended to study the RF parameters like cut-off frequency and maximum operating frequency of the device. The threshold voltage of the device is also derived and studied in terms of the thickness of the doped AlGaN layer and mole fraction of AlGaN. The mathematical model presented here is calibrated with the experimentally available results reported earlier and a good agreement has been observed.
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School of Engineering & Technology Archieval Section | Not for loan | 2022-1818 |
This work presents a theoretical study of a GaN MODFET considering accurate velocity field relation of GaN for a wide range of electric field. The analytical expression of different DC parameters such as drain current, mutual conductance and drain conductance of the device has been derived and their variation over different field regions has been investigated. This work has also been extended to study the RF parameters like cut-off frequency and maximum operating frequency of the device. The threshold voltage of the device is also derived and studied in terms of the thickness of the doped AlGaN layer and mole fraction of AlGaN. The mathematical model presented here is calibrated with the experimentally available results reported earlier and a good agreement has been observed.
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