How Ground Design Impacts EMI Control in PCB Design

Traditional electronics education simplifies circuits by focusing on components connected by wires, often treating "ground" as an implied connection.
This can hide the fact that both signal/power and ground paths are equally important for a circuit to work properly.
The article explains why this misunderstanding happens, the electromagnetic reasons why both paths need careful design, and practical tips for better PCB layouts.
-Dario
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