NDLI: Large-size local-domain basis function to embody the locality of high frequency diffraction in the Method of Moments

Content Provider	IEEE Xplore Digital Library
Author	Ando, M. Shijo, T. Rodriguez, L. Hirano, T.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo (Ando, M.; Shijo, T.; Rodriguez, L.; Hirano, T.)
Abstract	The relation between the method of moments (MoM) and high frequency techniques are discussed in view of the locality of the scattering phenomena. Firstly, locality in the high frequency diffraction is embodied in the MoM in view of the method of stationary phase. Local-domain basis functions accompanied with the phase detour, which are not entire domain but are much larger than the segment length in the usual MoM, are introduced to enhance the cancellation of the mutual coupling over the local-domain; the off-diagonal elements in resultant reaction matrix evanesce rapidly. Secondly, the Fresnel zone threshold is proposed for simple and effective truncation of the matrix into the sparse band matrix; the way mitigating computational load of the MoM in high frequency problems is suggested. The extended use of the Fresnel zone threshold in PO-MoM hybrid methods is also mentioned.
Starting Page	1
Ending Page	5
File Size	298247
Page Count	5
File Format	PDF
ISBN	9789290929376
DOI	10.1109/EUCAP.2006.4584843
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-11-06
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	ESA
Subject Keyword	Mutual coupling Optical diffraction Geometrical Theory of Diffraction Sparse matrices Fresnel reflection Fresnel zone Physical Optics Physical optics Physical theory of diffraction Frequency method of moments Computational efficiency Moment methods Optical scattering
Content Type	Text
Resource Type	Article

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