TM Polarized Plane Wave Scattering by a Conducting Plate with Multiple Holes

The Kirchhoff approximation (KA) is utilized to analyze electromagnetic scattering of an electromagnetic plane wave by a plate with multiple holes. Scattering far-fields are obtained by the summation of the radiation integrals due to the equivalent magnetic currents on the virtually closed surface on holes and the exterior of the plate. The accuracy of our formulations has been compared with the numerical solution, and good agreement has been confirmed to validate our formulation.