Theory of drain noise in high electron mobility transistors based on real-space transfer.

Autor:	Esho, Iretomiwa, Choi, Alexander Y., Minnich, Austin J.
Předmět:	MODULATION-doped field-effect transistors MICROWAVE amplifiers ELECTRONIC noise NOISE DRAINAGE CHARGE exchange
Zdroj:	Journal of Applied Physics; 2/28/2022, Vol. 131 Issue 8, p1-7, 7p
Abstrakt:	High electron mobility transistors are widely used as microwave amplifiers owing to their low microwave noise figure. Electronic noise in these devices is typically modeled by noise sources at the gate and drain. While consensus exists regarding the origin of the gate noise, that of drain noise is a topic of debate. Here, we report a theory of drain noise as a type of partition noise arising from real-space transfer of hot electrons from the channel to the barrier. The theory accounts for the magnitude and dependencies of the drain temperature and suggests strategies to realize devices with lower noise figure. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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