Abstract
We report on a consistent large-signal and small-signal modeling and parameter extraction method for high-speed InP DHBT valid to 110 GHz. Electromagnetic simulation is applied to predict the embedded network model caused by pad parasitics. Applying direct parameter extraction on the de-embedded device response leads to accurate small-signal model description of the InP DHBT. We have solved the problem of consistent transit time modeling by a two step process. A parameter extraction approach is described for the Agilent ADS2004A HBT model, which assures consistency between large-signal and bias-dependent small-signal modeling.
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