Electromagnetic field near the common edge of a perfectly conducting wedge and a resistive half-plane

Proceedings of the 1989 URSI International Symposium on Electromagnetic Theory, Stockholm, Sweden, 1989, pp. 88-90 The behavior of the electromagnetic field near a common edge of a resistive half-plane and a perfectly conducting wedge is investigated. The possible appearance besides power terms also of logarithmic functions in the field expansions at specific angles between a resistive plane and the sides of the wedge is indicated. It is shown that in the main terms of the electric or magnetic field components perpendicular to the edge, logarithmic functions appear only in two particular cases: when a half-plane forms a straight angle with one of the sides of the conducting wedge, or when the external angle of the conducting wedge is a right one. Otherwise, the main terms of all components have a purely power character and can be determined by the Meixner method. To confirm the efficiency of accounting for the found field distribution law, transversal wave numbers of the dominant mode of a rectangular waveguide with a resistive film in the diagonal plane is calculated.