Noise and Large-Signal Characterization of a Thin-film MHEMT Feedback Amplifier in Multilayer MCM-D Technology

R. Vandersmissen, D. Schreurs, G. Dambrine*, G. Carchon, and G. Borghs

IMec, MCP, Kapeldreef 75, B-3001 Leuven, Belgium

*IEMN, UMR CNRS, 59655 Villeneuve D’Ascq, Cedex, France

Phone: +32-16-288056m e-mail:


Keywords : MHEMT, Large –Signal, Microwave Noise, Feedback Amplifier, MCM-D



In this paper, we investigate the noise and large-signal behavior of a feedback amplifier in multilayer thin-film MCM-D technology.  A small-signal equivalent model (including noise) of the active device, a thin-film MHEMT, is identified.  A large-signal state-space transistor model is build from time-domain data.  These models are implemented in a circuit simulator and can accurately predict the noise and large-signal behavior of the feedback amplifier.



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