What is Noise Temperature?

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Editorial Team - everything RF

Jan 3, 2019

Noise Temperature (Te) is a way to express noise of a system in terms of an equivalent temperature. It is not the physical temperature of a system but is a theoretical value that defines an equivalent temperature required to produce a specific amount of noise power in that system.

The relation between Noise temperature and Noise Factor can be given by the following equation (To=290 K):

The Relation between Noise Temperature and Noise Figure can be given by the following equation (To=290 K):



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