587 research outputs found
Compact conversion and cyclostationary noise modelling of pn junction diodes in low-injection - Part I: Model derivation
Starting from the well known low-injection approximation, a closed form, analytical compact model is derived for the small-signal (SS) and forced quasi-periodic operation of junction diodes. The model determines the small-signal and conversion admittance matrix of the device as a function of the applied (dc or periodic-time varying) bias. Noise characteristics, in both the stationary (SS) and cyclostationary cases, are also evaluated by means of a Green's function approach
Physics-based simulation techniques for small- and large-signal device noise analysis in RF applications
Author's reply to "Comments on "Noise source modeling for cyclostationary noise analysis in large-signal device operation""
Compact conversion and cyclostationary noise modelling of pn junction diodes in low-injection - Part II: Discussion
Starting from the compact conversion and cyclostationary pn diode noise model presented in the companion paper, we present an extensive validation based on comparisons with physics-based numerical simulations. Furthermore, we discuss the validity of two widely exploited system-oriented cyclostationary noise modeling approaches, based on the modulation of small-signal stationary noise spectra. We demonstrate that care must be exerted in the choice of the modulation scheme, unless the intrinsic diode noise is purely white, in which case a simple modulated shot noise approach can provide, with proper inclusion of parasitics, satisfactorily accurate results
A TCAD approach to the physics-based modeling of frequency conversion and noise in semiconductor devices under large-signal forced operation
Physics-based SS and SSLS variability assessment of microwave devices through efficient sensitivity analysis
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