Abstract

This paper extends the two-dimensional Mirror Kirchhoff Approximation (MKA) to predict the shadowing gain by a conductor convex cylinder accurately and efficiently. The conventional MKA is applied only to the rectangular cylinder. This paper proposes the extension of MKA to more general convex shapes such as an elliptical cylinder. The proposal models the convex scatterer as the combination of several rectangular cylinders and applying MKA repeatedly. The proposed method is validated for an elliptical cylinder by comparing the Method of Moment (MoM) in terms of complexity and accuracy. The results imply that the proposed method presents good accuracy. Calculating time is improved by 40 times compared with MoM for the case of $100\lambda\times 40\lambda$ ellipse.

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