In this paper the nonlinear model of a GaN transistor is extracted starting from dynamic bias measurements under class-F operation. Thanks to this technique, applied for the first time to high-efficiency classes of operation, one can get at once and separately the nonlinear currents and charges of the transistor in actual operating conditions. As case study a 0.25-μm GaN HEMT is considered. The model has been fully validated through comparison with harmonic load-pull measurements carried out at 5 GHz.

Vadalà, V., Raffo, A., Avolio, G., Marchetti, M., Schreurs, D., Vannini, G. (2015). Extraction of accurate GaN HEMT model for high-efficiency power amplifier design. In 2015 IEEE MTT-S International Microwave Symposium, IMS 2015 (pp.1-4). Institute of Electrical and Electronics Engineers Inc. [10.1109/MWSYM.2015.7166866].

Extraction of accurate GaN HEMT model for high-efficiency power amplifier design

Vadalà, V;
2015

Abstract

In this paper the nonlinear model of a GaN transistor is extracted starting from dynamic bias measurements under class-F operation. Thanks to this technique, applied for the first time to high-efficiency classes of operation, one can get at once and separately the nonlinear currents and charges of the transistor in actual operating conditions. As case study a 0.25-μm GaN HEMT is considered. The model has been fully validated through comparison with harmonic load-pull measurements carried out at 5 GHz.
paper
microwave FET; nonlinear microwave measurements; nonlinear transistor model; power amplifiers;
English
IEEE MTT-S International Microwave Symposium, IMS 2015 - 17 May 2015 through 22 May 2015
2015
2015 IEEE MTT-S International Microwave Symposium, IMS 2015
9781479982752
2015
1
4
7166866
none
Vadalà, V., Raffo, A., Avolio, G., Marchetti, M., Schreurs, D., Vannini, G. (2015). Extraction of accurate GaN HEMT model for high-efficiency power amplifier design. In 2015 IEEE MTT-S International Microwave Symposium, IMS 2015 (pp.1-4). Institute of Electrical and Electronics Engineers Inc. [10.1109/MWSYM.2015.7166866].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/393649
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