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Noise Figures of Radio Receivers

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1 Author(s)

A rigorous definition of the noise figure of radio receivers is given in this paper. The definition is not limited to high-gain receivers, but can be applied to four-terminal networks in general. An analysis is made of the relationship between the noise figure of the receiver as a whole and the noise figures of its components. Mismatch relations between the components of the receiver and methods of measurements of noise figures are discussed briefly.

Published in:

Proceedings of the IRE  (Volume:32 ,  Issue: 7 )