D.A. Borisov1, S.P. Skobelev2

1,2 Moscow Institute of Physics and Technology (National Research University) (Dolgoprudny, Russia)

2 PJSC “Radiofizika” (Moscow, Russia)

1 bd240897@yandex.ru; 2 s.p.skobelev@mail.ru

A self-sufficient method is proposed for solution of the problem of electromagnetic wave scattering by homogeneous magneto-dielectric bodies in general 3D case. The method includes approximation of the specified body by a polyhedron; the use of combined auxiliary electric and magnetic surface currents uniformly distributed over each facet; and satisfaction of the continuity conditions for tangential components of the electric and magnetic field strength in the collocation points located in the centroid of each facet. As a result, the problem is reduced to a system of linear algebraic equations. The general algorithm includes a special case of wave scattering by a perfectly conducting body. The auxiliary currents determined as a result of solution of the algebraic system are used for calculation of the radar cross-section of the body, as well as for calculation of the tangential components of the electric and magnetic field strength used for determining equivalent (not auxiliary) surface electric and magnetic currents. The self-sufficiency of the method is further ensured by checking the accuracy of fulfilling another system of linear algebraic equations obtained on the basis of the theorem of equivalence. A number of numerical results characterizing the effectiveness of the method proposed in the paper are presented and discussed.

Borisov D.A., Skobelev S.P. A self-sufficient method of combined auxiliary surface currents in 3D problems of electromagnetic scattering by homogeneous magneto-dielectric bodies. Radiotekhnika. 2025. V. 89. № 4. P. 26−43. DOI: https://doi.org/10.18127/j00338486-202504-03 (In Russian)

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