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Inflection Frequency

Enter the frequency at which the Shield Transfer Impedance transitions from a negative slope to a positive slope.  At frequencies below the inflection frequency, shield transfer impedance decreases with increasing frequency due to skin effect.  At frequencies above the inflection frequency, shield transfer impedance increases for braided shields due to aperture leakage.  For solid shields there is no inflection frequency because there are no apertures.

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Strand Diameter, Shield

 

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