Large-Signal Microwave Characterization of AlGaAs/GaAs HBTs based on a Physics-Based Electro-Thermal Model
نویسنده
چکیده
A physics-based multi-cell electro-thermal equivalent circuit model is described which is applied to the large-signal microwave characterization of AlGaAs/GaAs HBTs. This highly efficient model, which incorporates a new multi-finger electro-thermal model, has been used to perform DC, small-signal and load-pull characterization and investigate parameter-spreads due to fabrication process variations. An enhanced Newton algorithm is presented for solving the non-linear system of equations for the model and associated circuit simulator, which allows a faster and more robust solution than contemporary quasi-Newton non-linear schemes.
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A physics-based multicell electrothermal equivalent circuit model is described that is applied to the large-signal microwave characterization of AlGaAs/GaAs HBT’s. This highly efficient model, which incorporates a new multifinger electrothermal model, has been used to perform dc, small-signal and loadpull characterization, and investigate parameter-spreads due to fabrication process variations....
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