Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Utilization and Validation of HBT Nonlinear Frequency Domain Behavioral Models in the Design and Simulation of Oscillator Circuits
Year:2010
Research Areas
  • Electronic technology and of the communications
Information
Abstract
Recently new behavioral model formulations, i.e. PHD model, X-parameters, have been shown to robustly describe the nonlinear behavior of transistors. Such models being obtained from measurements performed using the emerging family of nonlinear network analyzers. The critical next step is to further demonstrate the usefulness and validity of such models in CAD design. In this paper it will be shown that such models can be successfully utilized in the design and performance prediction of free running RF oscillators, when using an adequate extraction strategy. For that purpose, a PHD type behavioral model was extracted at two different output port impedances, from the measured response of a SiGe HBT stimulated by a set of harmonically related discrete tones. For that purpose, LSNA (Large Signal Network Analyzer) nonlinear measurements, at an adequate device load impedance, and different output active injections levels have been used. To check the model validity and efficiency, its performance has been studied and compared at device and oscillator circuit level. This analysis showed the importance of the election of an appropriate output impedance for the model generation. Using this model, HBT-based oscillators have been successfully designed and fabricated.
International
Si
Congress
European Microwave Conference, 2010. EUMC 2010.
960
Place
París, Francia
Reviewers
Si
ISBN/ISSN
978-2-87487-016-3
Start Date
28/09/2010
End Date
30/09/2010
From page
481
To page
484
Proceedings
Participants
  • Autor: Ana Peláez Pérez (UPM)
  • Autor: A. Rodríguez Testera (Universidad de Vigo)
  • Autor: O. Mojón (Universidad de Vigo)
  • Autor: M. Fernández Barciela (Universidad de Vigo)
  • Autor: P.J. Tasker (Cardiff University. UK)
  • Autor: Jose Ignacio Alonso Montes (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Microondas y Radar
  • Departamento: Señales, Sistemas y Radiocomunicaciones
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