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
Subtitle IEEE Xplore
Access
Open Access
Creators
  1. Manushanker Balasubramanian
  2. Alberto Toccafondi
  3. Stefano Maci
Keyword
  1. Splines (mathematics)
  2. Diffraction
  3. Surface topography
  4. Surface reconstruction
  5. Green's function methods
  6. Automotive components
  7. Antennas
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. The 8th European Conference on Antennas and Propagation (EuCAP 2014)
Publication Date September 18, 2014
Publisher Identifier (DOI)
  1. https://doi.org/10.1109/EuCAP.2014.6902354
Deposited October 21, 2024

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Version 1
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  • Created
  • Added Including_high-frequency_surface_diffraction_in_a_hybrid_FEBI-MLFMM-UTD_method.pdf
  • Added Creator Manushanker Balasubramanian
  • Added Creator Alberto Toccafondi
  • Added Creator Stefano Maci
  • Published
  • Updated
  • Updated Keyword, Publisher Show Changes
    Keyword
    • Splines (mathematics), Diffraction, Surface topography, Surface reconstruction, Green's function methods, Automotive components, Antennas
    Publisher
    • European Conference on Antennas and Propagation (EuCAP 2014)
    • The 8th European Conference on Antennas and Propagation (EuCAP 2014)