Computationally-effective Worst-Case model of High-frequency electromagnetic wave diffraction by aperture in conducting screen

The worst-case model of high-frequency electromagnetic wave diffraction by circular or rectangular apertures in a conducting screen is proposed. The model is based on the worst-case generalization of analytical solutions of diffraction problem. These solutions were obtained in the frame of approach based on the theory of Hertzian vector. In order to develop the worst-case model, the envelope of the field maxima is found. The results obtained by the model correspond to the results of numerical simulation. Proposed model can be used for calculations of EMC due to high computational efficiency and worst-case character