| The Method of moments (MoM) is the one of the most common method used tosolve electromagnetic scattering.the core issue to achieve its high-precision calculation is the calculation of the diagonal elements in its impedance matrix, which involves numerical treatment of the weak/hypersingular integralshese. The MoM may solve some problems related with complex boundary that analytic method is inoperative. As a result, the MoM is broadly used in various electromagnetic researches, such as EMC, microwave net, micro-strip analysis, antenna design, radiation effort and antenna issues, etc.This essay will improve the method of mechanical quadrature (MQM) related with two-dimensional scattering issue as described below:With the latest formula in high-precision calculation of singular integral, and combining the method of dealing with 2-dimensional scattering problem, this paper extends smooth boundary to piecewise smooth boundary problem by using operator splitting method. Adopts the singular integral related to high-precision mechanical quadrature formula (MQM) calculations related to. The numerical results show the computational efficiency of this method. We could obtain improved MQM with better accuracy than it of MQM and MoM with calculation time saving advantages.Taking into account of the accuracy of pulse matching, it approximates surface currentthe by using radial basis function. The interpolation theory of RBF may help to reduce large amount of workload in grid subdivision, and therefore highly improve the efficiency and result accuracy of algorithm. |
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