Harmonic solution of semiconductor transport equations for microwave and millimetre-wave device modelling |
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Authors: | Gianluca Acciari Giorgio Leuzzi Franco Giannini |
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Affiliation: | 1. Dipartimento di Ingegneria Elettronica, Università di Roma Tor Vergata, Rome, Italy;2. Dipartimento di Ingegneria Elettrica, Università dell'Aquila, L'Aquila, Italy |
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Abstract: | The hydrodynamic transport equations for charges in a semiconductor have been solved for a periodic excitation by means of a harmonic approach, in order to model microwave and millimetre-wave active devices. The solution is based on the expansion of physical variables in a Fourier series in the time domain, and on discretisation in the space domain. A waveform-balance technique in the TD is used to solve the nonlinear equations system. This approach allows for a longer time step with respect to standard TD solutions for most cases of interest, greatly reducing simulation time by at least two orders of magnitude in typical cases. © 2003 Wiley Periodicals, Inc. Int J RF and Microwave CAE 14: 36–48, 2004. |
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Keywords: | high frequency simulation semiconductor |
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