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A novel hybrid method combining the adaptive integral method (AIM) and physical optics (PO) with Chebyshev approximation technique (CAT) is presented for wideband analysis of antennas in the presence of electrically large conducting platforms. In the hybrid AIM-PO method, the AIM is applied to reduce the memory requirement of the method of moments (MoM) impedance matrix and the MoM-PO interaction...
A new fast frequency sweeping technique hybridized with the adaptive integral method (AIM)-physical optics (PO) is proposed for wide-band response analysis. The AIM-PO is an efficient technique for modeling the large-scale structure with small features. However, the calculation of the response over a broad frequency band is very time-consuming. To achieve fast frequency sweeping, the Chebyshev approximation...
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