Electric-Field Shielding and Measurement

Using quasi-static relationships, a fairly simple derivation for the electric-to-electric-field shielding effectiveness was demonstrated. Shielding-effectiveness computations based on this simple approach appear identical to those based on a more rigorous formulation using scattering theory and numerical integration. If transient penetration is of interest, a "circuit approach" which characterizes the transient penetration is also possible; and results using the "circuit approach" reasonably approximate the transient penetrating waveform based on scattering theory.