Analysis of Far-Field Radiation From Apertures Using Monte Carlo Integration Technique

An integration technique based on the use of monte carlo integration (mci) is proposed for the analysis of theelectromagnetic radiation from apertures. the technique that can be applied to the calculation of the aperture antennaradiation patterns is the equivalence principle followed by physical optics, which can then be used to compute far-fieldantenna radiation patterns. however, this technique is often complex mathematically, because it requires integrationover the closed surface. this paper presents an extremely simple formulation to calculate the far-fields from sometypes of aperture radiators by using mci technique. the accuracy and effectiveness of this technique are demonstratedin three cases of radiation from the apertures and results are compared with the solutions using fe simulation andgaussian quadrature rules.