Make Loops Small

Loops, especially #high-frequency loops, should be made as small as possible. Small #loops have lower #inductance and resistance. Placing loops over a #ground plane further reduces inductance. Having small loops reduces high-frequency voltage spikes caused by 

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Small loops also help reduce the number of #signals that are inductively coupled into the node from external sources or are #broadcast from the node. This is what you want unless you’re designing an #antenna. Also, keep loops small for op-amp circuits to prevent #noise from being coupled into the circuit.

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