The low frequency noise behaviour of SiC MESFETs

In the paper results of low frequency noise measurements of SiC MESFET transistors were presented. The investigations were carried out on MESFET type CRF24010 (CREE). The low frequency noise of drain current and of gate current was measured in two-channel system, separately but in the same time. The spectra of a drain current noise and of a gate current noise were evaluated, also a coefficient of coherence between these noise sources. The noise of gate current was measured in the one-channel system. The noise model of MESFET for CRF24010 transistors for low frequency was elaborated.