A Hybrid 2-D/3-D multilevel green's function interpolation method for electrically large multilayered problems

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Article number7508926
Pages (from-to)3931-3942
Journal / PublicationIEEE Transactions on Antennas and Propagation
Volume64
Issue number9
Publication statusPublished - 1 Sep 2016

Abstract

The multilevel Green's function interpolation method has been implemented to solve the general electrically-large multilayered problems. A new hybrid 2-D and 3-D (H2-D/3-D) multilevel interpolation method and a cross-level translation scheme are devised for the specific problems, from which a quad-tree is constructed. The interpolation of the multilayered medium Green's function using radial basis function is then studied. To further accelerate the computation, a subdomain fast Fourier transform scheme and a sparse approximated inverse preconditioner with a new discarding strategy are also incorporated into the algorithm. As numerical examples, typical microstrip antenna arrays, a metasurface antenna and electromagnetic bandgap integrated antenna arrays are analyzed with the proposed method and excellent performance is observed in both accuracy and efficiency.

Research Area(s)

  • Antenna array, fast Fourier transform (FFT), fast integral equation solver, interpolation of Green's function, multilayered media

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