EMC for PCB design is anything but black magic.
Electromagnetic compatibility (EMC) problems are often responsible for redesign cycles during the PCB design process, but once engineers and designers understand the basics, they see there’s nothing mystical about it.
EMC is the branch of electrical engineering and physics that deals with the unintentional generation, propagation and reception of electromagnetic waves (in the E and H fields). These can cause undesirable effects in electronic devices, including functional interferences, malfunctions, or even physical damage.
Generally, two fundamental aspects are considered. First, the emission referring to the unwanted generation of electromagnetic energy and its transmission to the sinks, along with the necessary countermeasures to reduce such emission. Second, the respective susceptibility to interference relating to the operation of electrical/electronic equipment (or components) that become “victims” of unintended electromagnetic interference (EMI).
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