The subsurface sounding analytical description of orthotropic composite in dimensionless coordinates

A rectangular magnetic antenna in a range up to 0.5 GHz is disposed parallel with a plane surface of orthotropic conducting composite as well as along and crosswise to its reinforcement direction. Integral equations, which describe reduced spatial-time distributions of electrical intensity (in air half-space) and inductive current density (in composite), have been deduced in case of single point source of external current. The transition to dimensionless integer coordinates has ensured: a) the co-ordinated discretization that satisfies Nyquist criterion; b) Cartesian x- and y-projection simplicity of both the electrical intensity and the inductive current density under sub-optimal excitation.