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Pi Filter Option
I put a (C-L-C) Pi Filter in series with my antenna trace on a new design, like so:
source
The reason you put one of these circuits in, as I understand it, is just in case, during compliance ...
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How the low pass filter works in this circuit?
simulate this circuit – Schematic created using CircuitLab
Vi=input, Vo=output signal. The capacitors and resistors of the output terminal of the above circuit is supposed to act as low pass ...