RCS Calculation of a Symmetrical Microstrip Array Using Discrete Bodies of Revolution Method

In this paper, the Radar Cross Section (RCS) of a planar microstrip array with discrete rotational symmetry is obtained. For this purpose, Discrete Bodies of Revolution (DBOR) method has been used compared to the traditional moment method to reduce the amount of required memory and computation time. In this method, for a structure with symmetrical sector $\boldsymbol{N}_{\boldsymbol{s}}$ , the amount of required memory and the computation time are reduced by the ratios of $\boldsymbol{N}_{\boldsymbol{s}}{{}^{\mathbf{2}}}$ and $\boldsymbol{N}_{\boldsymbol{s}}{{}^{\mathbf{3}}}$ , respectively, compared to the traditional moment method. Finally, the numerically results are presented to verify the accuracy and efficiency of the proposed method compared by commercial FEKO software and to show its ability to reduce the computation time and required memory.