资料介绍
噪声系数测量RFMW 202: Noise Figure Basics
Technical data is subject to change Copyright@2003 Agilent Technologies Printed on Dec. 4, 2002 5988-8495ENA
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Agenda
Fundamental noise concepts
How do we make measurements?
What DUTs can we measure?
What influences the measurement uncertainty?
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Fundamental noise concepts
Fundamental Noise Concepts
Fundamental noise concepts
How do we make measurements?
What DUTs can we measure?
What influences the measurement uncertainty?
3
Fundamental noise concepts
What is Noise Figure?
Small Signal
Imperfect Amplifier Agitation of Electrons adds noise to the signal Signal larger But Noisier
In this example, a perfect amplifier would add no noise, and the signal would be an amplified replica. However, in practice, noise is present, and can mask the wa
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