Please use this identifier to cite or link to this item: https://doi.org/10.1109/22.993423
Title: A novel drain current I-V model for MESFET
Authors: Ooi, B.-L. 
Ma, J.Y.
Leong, M.S. 
Keywords: Large-signal model
MESFET
Nonlinear model
Issue Date: Apr-2002
Citation: Ooi, B.-L., Ma, J.Y., Leong, M.S. (2002-04). A novel drain current I-V model for MESFET. IEEE Transactions on Microwave Theory and Techniques 50 (4) : 1188-1192. ScholarBank@NUS Repository. https://doi.org/10.1109/22.993423
Abstract: The conventional approach for modeling the dc I-V characteristics of a MESFET transistor usually adopts the hyperbolic tangent dependence on V ds. On the contrary, our new empirical model describes the device drain current as a polynomial of effective gate-source voltage V eff. The derived model is capable of accurately model the subthreshold effect and the device current-voltage behavior at different operating regions, in particular, the device operation around the pinchoff region. Measured and modeled results of a 0.5-μm gatelength MESFET device are compared and good agreement has been obtained. Comparisons between the proposed model, Curtice model, Chalmers model, and Parker model are also made in this paper. In addition, a single-stage class-AB amplifier was built with a commercial high-power MESFET transistor to verify the new model.
Source Title: IEEE Transactions on Microwave Theory and Techniques
URI: http://scholarbank.nus.edu.sg/handle/10635/81896
ISSN: 00189480
DOI: 10.1109/22.993423
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