System Shielding Design - A Pragmatic Approach

Abstract

A simplified estimate is made of the energy coupled to a circuit inside a shielded enclosure. The steps are 1) Estimate maximum values of local electric and magnetic fields on exterior of shield resulting from incident electromagnetic field, 2) Apply known values of Transfer Impedance and Admittance of "leaky" areas of shield to determine internal electric and magnetic fields, and 3) Estimate energy coupled to load.