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4. Noise in non-linear circuits
4.1 Representation of noise in oscillators
4.1.1 Amplitude noise and phase noise
In oscillators, frequency multipliers, frequency dividers, and more generally in circuits using high-level signals (see box), modulations are generated in the non-linear circuit by the noise sources of the components used. We evaluate the noise power carried by these phase and amplitude modulations.
In non-linear diagrams and in circuit dynamics...
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Noise in non-linear circuits
Noise in sub-assemblies
Bibliography
Standards and norms
ITU-R SM 329.7
defines "out-of-band" emissions, i.e. outside the band used, but within the total band allocated.
CEPT/ERC/REC 74-01 "spurious emissions
defines – 30 dBm per 1 GHz band
EN 301 390
specifies point-multipoint equipment, etc.
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Microwave circuits
AppCAD : http://www.hp.woodshot.com/
Friis formula
http://www.emtalk.com/tools/noise-figure-calculator.php
Non-linear simulation
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