NDLI: Efficient analysis of scattering from large-scale aperiodic tilings by use of the characteristic basis function method combined with the adaptive integral method

Content Provider	IEEE Xplore Digital Library
Author	Xiande Wang Werner, D.H.
Copyright Year	2012
Description	Author affiliation: Department of Electrical Engineering, The Pennsylvania State University, University Park, 16802 USA (Xiande Wang; Werner, D.H.)
Abstract	This paper presents a hybrid method for fast analysis of electromagnetic (EM) scattering from large-scale aperiodic structures (e.g., Penrose and Danzer tilings), which integrates the characteristic basis function method (CBFM) and the adaptive integral method (AIM). The CBFs defined on the macro block facilitate a substantial reduction in the method of moments (MoM) matrix size, enabling the use of direct solvers for large problems. The initial CBFs are constructed by illuminating one block with θ- and φ-polarization plane waves for multiple incident angles. Thereafter, the singular value decomposition (SVD) method and threshold are used to extract the independent basis from the initial solution space, ultimately leading to the final CBFs. The AIM is applied to accelerate the calculation of CBFM reduced MoM matrices, significantly decreasing the CPU time and memory required for solving large-scale problems. As the size of one block becomes electrically large, the original CBFM combined with AIM is employed to generate the initial CBFs by solving a problem with multiple excitations, which results in efficiently constructing the final CBFs afforded by the SVD procedure. After validating the developed code, the subsequent solver is applied to investigate EM scattering from large-scale aperiodic tilings in order to demonstrate the efficiency of the proposed method. Further, the numerical results show that Penrose and Danzer tilings exhibit improved grating lobe suppression as compared to their periodic counterparts.
Starting Page	1
Ending Page	2
File Size	342933
Page Count	2
File Format	PDF
ISBN	9781467304610
ISSN	15223965
e-ISBN	9781467304627
DOI	10.1109/APS.2012.6349053
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Periodic structures Moment methods Algorithm design and analysis Electromagnetic scattering Acceleration Equations
Content Type	Text
Resource Type	Article

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