Including high-frequency surface diffraction in a hybrid FEBI-MLFMM-UTD method
In this paper we propose a technique for including UTD surface diffracted fields which are diffracted from curved convex objects into a multilevel fast multipole implementation (MLFMM) of the Finite Element Boundary Integral method. We use Non-Uniform Rational B-splines (NURBS) representation for efficiently describing arbitrarily shaped objects. The dyadic Green's function associated with UTD field scattered by these convex curved object is determined using a high frequency ray-based method and then inserted at the various levels of the MLFMM. Results show that the proposed hybrid MLFMM-FEBI-UTD technique for convex object allows a significant reduction in memory storage and computational effort, preserving however the accuracy in the field estimates
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Work Title | Including high-frequency surface diffraction in a hybrid FEBI-MLFMM-UTD method |
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Subtitle | IEEE Xplore |
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License | In Copyright (Rights Reserved) |
Work Type | Article |
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Publication Date | September 18, 2014 |
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Deposited | October 21, 2024 |
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