Three-dimensional static Green's function for a half space over mixed PEC and dielectric wedges

•Analytic solution of Poisson's equation for a half space over PEC-dielectric wedges.•Extending the existing solution for a single wedge geometry.•Applicable to EMC analysis of power installations located near shorelines.

A pseudo-analytical solution technique is proposed to determine the three-dimensional static Green's function for a half space over mixed perfect electric conductor-dielectric wedges. The governing Poisson's equation is solved, using the Kontorovich–Lebedev and Fourier transforms. The solution, expressed in terms of image contributions, consists of an excitation point source, a set of point images in physical space, and two line images located in complex space for each region of the problem geometry. The validity of the proposed technique is confirmed by comparing our results with the existing analytical solutions and those obtained numerically using the using a finite integration code.