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RESEARCH PRODUCT

Influence of the temperature on the equivalent noise resistance of HEMTs at microwave frequencies

M. SanninoA. CaddemiF. Di Prima

subject

Noise temperatureMaterials scienceAcousticsGeneral EngineeringY-factorNoise figurelaw.inventionNoise generatorlawElectronic engineeringEquivalent circuitFlicker noiseResistorNoise (radio)

description

Abstract This paper is focused on the performance of the noise resistance Rn of HEMTs at microwave frequencies as a function of temperature. A sensitivity analysis has been performed on several noisy circuit models of low-noise devices that we had previously characterized in terms of scattering and noise parameters. Such a study has been aimed at pointing out the role played by either the electrical elements and the noise temperatures of the resistors of the equivalent circuit on the typically observed U-shaped behavior of Rn.

yearjournalcountryeditionlanguage
1998-10-01
10.1016/s0026-2692(98)00037-8http://hdl.handle.net/11570/802