A FINITE ELEMENT - BOUNDARY INTEGAL METHOD FOR SCATTERING AND RADIATION BY TWO - AND THREE DIMENSIONAL STRUCTURES PDF Download
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Author:
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ISBN:
Category :
Languages : en
Pages : 40
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Author:
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Category :
Languages : en
Pages : 40
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Author: Leo C. Kempel and J. L. Volakis
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Category :
Languages : en
Pages : 44
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 604
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Author: IEEE Antennas and Propagation Society
Publisher: Institute of Electrical & Electronics Engineers(IEEE)
ISBN:
Category : Mathematics
Languages : en
Pages : 560
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722000424
Category :
Languages : en
Pages : 40
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Book Description
A review of a hybrid finite element-boundary integral formulation for scattering and radiation by two- and three-dimensional composite structures is presented. In contrast to other hybrid techniques involving the finite element method, the proposed one is in principle exact and can be implemented using a low O(N) storage. This is of particular importance for large scale applications and is a characteristic of the boundary chosen to terminate the finite element mesh, usually as close to the structure as possible. A certain class of these boundaries lead to convolutional boundary integrals which can be evaluated via the fast Fourier transform (FFT) without a need to generate a matrix; thus, retaining the O(N) storage requirement. The paper begins with a general description of the method. A number of two- and three-dimensional applications are then given, including numerical computations which demonstrate the method's accuracy, efficiency, and capability. Jin, Jian-Ming and Volakis, John L. and Collins, Jeffery D. Unspecified Center NAG2-541...
Author: alex woo
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Category :
Languages : en
Pages : 36
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Author: Mary Catherine Hill
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ISBN:
Category : Groundwater
Languages : en
Pages : 54
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722128135
Category :
Languages : en
Pages : 56
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A method for the computation of electromagnetic scattering from arbitrary two-dimensional bodies is presented. The method combines the finite element and boundary element methods leading to a system for solution via the conjugate gradient Fast Fourier Transform (FFT) algorithm. Two forms of boundaries aimed at reducing the storage requirement of the boundary integral are investigated. It is shown that the boundary integral becomes convolutional when a circular enclosure is chosen, resulting in reduced storage requirement when the system is solved via the conjugate gradient FFT method. The same holds for the ogival enclosure, except that some of the boundary integrals are not convolutional and must be carefully treated to maintain O(N) memory requirement. Results for several circular and ogival structures are presented and shown to be in excellent agreement with those obtained by traditional methods. Collins, Jeffery D. and Jin, Jian-Ming and Volakis, John L. Unspecified Center...
Author:
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ISBN: 9788890701856
Category : Antennas (Electronics)
Languages : en
Pages :
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Author: IEEE Staff
Publisher:
ISBN: 9781728106939
Category :
Languages : en
Pages :
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The conference is intended to provide an international forum for the exchange of information on state of the art research in antennas, propagation, electromagnetics, and radio science
