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Accuracy investigation of the wire‐grid model in EM scattering analysis with the MoM
Author(s) -
Yuan Weiliang,
Li Erping
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20960
Subject(s) - radius , basis function , basis (linear algebra) , method of moments (probability theory) , grid , function (biology) , scattering , approximation error , microwave , mathematical analysis , engineering , mathematics , optics , physics , geometry , computer science , telecommunications , statistics , computer security , estimator , evolutionary biology , biology
This paper investigates a wire‐grid model for the scattering analysis of bodies using the method of moments (MoM). The accuracy of the model is explored in terms of basis functions, and the size and radius of the segments of the model are determined through a defined error function. The numerical simulations indicate that the wire‐grid model can accurately calculate the scattering problems when the proper model and the triangular basis function in the MoM are used. The optimal radius of the segments in the model is determined. However, the MoM with the sinusoidal basis function used in NEC2 results in very high error if both large size and large radius are adopted for the segments. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 259–263, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20960