The study of the relation between R/sub n/-G/sub n/ noise model and E/sub n/-I/sub n/ noise model of an amplifier

The R/sub n/-G/sub n/ noise model can only be used in the case of microwave low-noise amplifier design. Its application scopes are limited and in particular, it cannot be used in low-frequency low-noise amplifier design. This paper has adopted the E/sub n/-I/sub n/ noise model with spectral correlative coefficient (SCC) so that it can be used not only in high-frequency and narrow-band, but also in low frequency, source reactance, and wide-band amplifier low-noise design. In this paper, the equivalent relation between the E/sub n/-I/sub n/ noise model and the R/sub n/-G/sub n/, noise model is derived, and the measurement method of the E/sub n/-I/sub n/ noise model parameters and the measurement results are given. The R/sub n/-G/sub n/, noise model parameters can be accurately obtained by use of the equivalent relation.