Agilent HBT model extraction and circuit verification for InGaP/GaAs HBT

Abstract

Agilent HBT model parameters are extracted from the multi-finger InGaP/ GaAs HBT fabricated in 2 um process. Comparison has been made between measured and simulated data for verification purpose. With frequency range from DC to 20.05 GHz, this model is suitable for simulating InGaP/ GaAs HBT AC small -signal characterization. Using this model to verify a broadband amplifier, the result shows good agreement between simulated and measured data.