Introduction to shielding boundary conditions and anomalies

Certain apparent anomalies in the present electromagnetic shielding theory of a conductive barrier tal radiations from an antenna are described. The rereflection loss paranneter of the present theory is reviewed and the question of its existence is resolved. By using both transmission line and electromagnetic wave propagation theories, it is shown that the rereflection loss occurs in both transmission lines and conductive barriers. The limited applicability of the present theory only to plane wave radiations from antennas is discussed.