M. Rudolph, F. Lenk, R. Doerner, P. Heymann

Published in:

IEEE MTT-S Int. Microwave Symp. Dig., vol. 2, pp. 997-1000 (2002).

Abstract:

Four different approaches to include transit-time effects into Π-topology HBT equivalent circuits are investigated in order to assess their compatibility with the physics-based T topology. The aim is to find an implementation that not only yields an exact model but also has a unique set of parameters in both the Π and T cases. This is of prime importance for reliable parameter extraction and thus the physical significance of the model. It is achieved using a transcapacitance approach. The theoretical considerations are supported by a practical example comparing measured and modeled HBT behaviour.

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