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It is consume much time for hidden surface removal when compute the scattering of electrically large object by physical optics method. In this paper, a fast hidden surface removal algorithm is presented. First, the planar triangles covering the body surface are divided into several groups. The characteristic vectors of each groups is selected. Then, the dot product of the characteristic vectors and...
In this paper, the time domain integral equation (TDIE) method is presented to study scattering from helical antennas. By employing the moment method (MM) combining with marching on in time (MOT) procedure, one can easily solve the presented TDIE. Thus transient behaviours of the thin-wire antennas can be calculated. In this paper, numerical examples for helical antennas with incidence of different...
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