Thermal modelling of microwave devices for the electrothermal analysis of nonlinear microwave circuits

Rizzoli, Vittorio ; Costanzo, Alessandra ; Lipparini, Alessandro ; Mastri, Franco ; Muzzarelli, Giulio (1994) Thermal modelling of microwave devices for the electrothermal analysis of nonlinear microwave circuits. In: Gallium Arsenide Applications Symposium. GAAS 1994, 28-30 April 1994, Turin, Italy.

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Abstract

The paper discusses a general approach to the electrothermal simulation of nonlinear FET circuits. The thermal resistance of each active device is first computed by a numerical method based on physical and layout information, and is then used to derive a temperature-dependent nonlinear model starting from measured DC and small-signal information. The combined thermal and electrical simulation is then carried out by an extended harmonic-balance technique.

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