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Efficient analysis of antenna around electrically large platform with improved non-uniform rational b-spline hybrid method of moments and physical-optics method

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4 Author(s)
Huang, K. ; Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi'an, China ; He, Z.L. ; Zhang, H.W. ; Liang, C.H.

An improved hybrid method of moments and physical-optics (MOM-PO) method is presented to analyse an antenna around an electrically large platform modelled with non-uniform rational B-spline (NURBS) surfaces. A Ludwig integral combined with stationary phase method is used to calculate the integral of induced currents for overcoming the limitations of the existing NURBS MOM-PO method. Grouping of the MOM region is utilised to enhance computational efficiency. Comparison of the results obtained from this method with that from MOM and existing NURBS MOM-PO shows that the present method is feasible.

Published in:

Microwaves, Antennas & Propagation, IET  (Volume:5 ,  Issue: 2 )