Babinet´s principle for a perfectly conducting screen with aperture covered by resistive sheet

In this paper, a more general form of Babinet´s principle for electromagnetic waves and perfectly conducting screens with apertures covered by resistive sheets is presented. It shows that the field components parallel to the screens are now further related to one another by the resistance of the resistive sheets whereas the field components normal to the screens retain the same relationship as in the absence of the resistive sheets.