Grounding & return-current paths
The most common lever: a continuous ground plane and short, defined return-current paths. Currents follow the path of least impedance — if a slot cuts across the return-current path, loops and emissions arise.
Layer stack-up
A well-thought-out layer stack-up (signal close to ground, continuous reference planes) keeps fields small. Layer changes of critical signals need nearby ground vias.
Filtering & decoupling
Filters, suppression capacitors and ferrites only work in the right place — close to the source or sink. Placed incorrectly, their effect fizzles out.
Shielding
Shielding helps, but it does not replace a good grounding concept. Ensure a clean 360° connection — “pigtails” are a classic weak point.
Frequently asked questions
Is a design review of my existing layout enough?
Often yes — an EMC design review of the PCB is the fastest lever. We assess critical spots and prioritize changes by impact. See EMC-compliant design.
Can you also measure the result?
Yes — in our own fully-anechoic chamber we verify throughout development whether the layout measures are effective. See Pre-compliance.