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Open AccessArticle10.6092/unibo/amsacta/1603

Large signal dynamic properties of GaAs MESFET/HEMT devices under optical illumination.

Carlos Navarro,J. M. Zamanillo,A. Mediavilla,J.L. Garcı́a-1998-01-01-AMS Acta (University of Bologna)
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TL;DRAbstract

This paper is the result of an extensive investigation on the large signal dynamic behaviour (Pulsed I/V) of unipolar GaAs devices, in the overall I/V plane, when varying the incident optical input power. We have observed a hyperbolic dependence with the gate voltage along with a quasi -logarithmic dependence with the optical power. An empirical equation has been developed in order to take into account both effects, and the successive simulations show a very good agreement with the experimental data for different foundries and technological process.

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This paper is the result of an extensive investigation on the large signal dynamic behaviour (Pulsed I/V) of unipolar GaAs devices, in the overall I/V plane, when varying the incident optical input power. We have observed a hyperbolic dependence with the gate voltage along with a quasi -logarithmic dependence with the optical power. An empirical equation has been developed in order to take into account both effects, and the successive simulations show a very good agreement with the experimental data for different foundries and technological process.

Keywords

MESFETHigh-electron-mobility transistorSIGNAL (programming language)LogarithmOptical powerOptoelectronicsMaterials scienceVoltage

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