RE Source

The RE Source module models active circuitry that is the source of the conducted emissions, which is the source of radiated emissions.  Current and voltage waveforms in the time domain are converted to their frequency domain equivalents using Discrete Fourier Transform (DFT) methods. 

All active circuits, i.e. circuits that contain components that dynamically change current or voltage levels as a function of their normal operation, generate radiated emissions.  The amplitude and frequency content of the radiated emissions is a function of the voltage and current waveforms on the conductors connected to the active circuit.

Radiated emissions most often pertain to noise (unintentional RF current or voltage) on power lines that supply a circuit or equipment, or noise on signal or control lines, which may also contain current or voltage waveforms that have radio frequency content.  Once the source current and voltage spectrums have been calculated the status bar beneath the Source button on the RE Analyst form is changed from red to green.

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RE Source Stray Capacitance