Absorption by a Holed Resistive Plane: A New Optical Theorem Formulation

An infinite power is absorbed by a holed resistive plane illuminated by a plane wave. However, the absorbed power density distribution changes by modifying the shape and size of the hole. These conclusions suggest the adoption of a new criterion of the perturbative type to analyze the absorption by such kind of structures. In this paper, a new parameter for the analysis of the absorption by a holed resistive plane when a plane wave impinges on it is inferred by a specifically devised generalized formulation of the Optical Theorem.