Harmonic solution of semiconductor transport equations for microwave and millimetre-wave device modeling
- Autori: ACCIARI G; G LEUZZI; F GIANNINI
- Anno di pubblicazione: 2004
- Tipologia: Articolo in rivista
- Parole Chiave: high-frequency, simulation, semiconductor
- OA Link: http://hdl.handle.net/10447/19218
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.