Please use this identifier to cite or link to this item: https://doi.org/10.1109/TAP.2012.2196963
Title: Efficient iterative method of momentsphysical optics hybrid technique for electrically large objects
Authors: Liu, Z.-L. 
Wang, C.-F. 
Keywords: Hybrid method
method of moments (MoM)
physical optics (PO)
Issue Date: 2012
Citation: Liu, Z.-L., Wang, C.-F. (2012). Efficient iterative method of momentsphysical optics hybrid technique for electrically large objects. IEEE Transactions on Antennas and Propagation 60 (7) : 3520-3525. ScholarBank@NUS Repository. https://doi.org/10.1109/TAP.2012.2196963
Abstract: The conventional hybrid method of moments (MoM)physical optics (PO) technique provides a possible way to handle electrically large objects with affordable computer memory. However, its efficiency is not very good because the evaluation of the PO contribution to the MoM impedance matrix is very time-consuming. An efficient implementation of the iterative MoM-PO hybrid technique is presented in this paper to avoid the calculation of the PO contribution in matrix form. For electrically large objects, the proposed efficient iterative MoM-PO (EI-MoM-PO) method can greatly reduce the computational time and maintain the same or better accuracy with the same number of unknowns compared with the conventional MoM-PO method. Several examples of large-scale structures are analyzed by the EI-MoM-PO method, the conventional MoM-PO method, and the multilevel fast multipole algorithm. The excellent efficiency and accuracy are achieved by the proposed EI-MoM-PO technique. © 1963-2012 IEEE.
Source Title: IEEE Transactions on Antennas and Propagation
URI: http://scholarbank.nus.edu.sg/handle/10635/116318
ISSN: 0018926X
DOI: 10.1109/TAP.2012.2196963
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