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Near-Field Shielding Effectiveness Calculator

Calculates the plane wave shielding effectiveness of various materials using the equation:
Shielding Effectiveness in dB equals reflection component plus absorption component
as described in the LearnEMC Shielding Theory Notes.

EM Source:
Electric Field Magnetic Field

Source to Shield Distance:

r :


Shielding Material:
Copper
Aluminum
Gold
Other

Conductivity

  (x107S/m)

Relative Permeability

Shield Thickness:

t :


Shielding Frequency:

f :

Electric and Magnetic Fields Impinging on Shielding Slabs

Shielding Effectiveness:

For Plane Wave Shielding, use the
Plane Wave Shielding Effectiveness Calculator.

Reflection Loss

(dB)

Absorption Loss

(dB)

Shielding Effectiveness

(dB)

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