We differentiate between functional (intentional emission) and non
functional sources (unintentional emission).6.1 Electromagnetic interference sources
Sources electromagnetic influences are evident throughout the entire
frequency spectrum, from low frequencies (Hz range) high frequencies
(GHz range).
Fig.
.6. 3.2 Definition electromagnetic Interference
Electromagnetic interference considered electromagnetic
phenomena, that can impair the performance component, device or
system.
3.77: The electrical field
is generated result a
potential difference.
Electromagnetic interference consists electrical field component and
a magnetic field component H. These electrical
signals are superimposed the desired signal.
Electromagnetic interference includes electromagnetic pulses, spurious
signals spontaneous changes the propagation medium.2.Hoods and Housings 55
3.
Fig. 3.78: The magnetic field
is generated current
flowing electrical
conductor
