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An efficient integration scheme is proposed for calculating weakly singular and near-singular potential integrals over planar triangles, with an essential improvement over the original polar integration. The reason for the problem of slow convergence of polar integration is revealed according to some careful investigations. A new technique of smoothing integrand based on variable transformation is...
In this paper, two kinds of planar monopole excited by UWB pulse are analysed using MOD method. In UWB antenna structure, the thin cylindrical probe is modelled as a thin strip which can be meshed easily by RWG basis functions. Then transient responses of surface current for UWB antennas are obtained.
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