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Large Hybrid Finite Element Methods for Electromagnetics

Applications to Antennas and Scattering

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Computational Electromagnetics and Its Applications

Part of the book series: ICASE/LaRC Interdisciplinary Series in Science and Engineering ((ICAS,volume 5))

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Abstract

This chapter provides an overview of the finite element method (FEM) as applied to electromagnetic scattering and radiation problems. It begins with a review of the methodology with particular emphasis on new developments over the past five years relating to feed modeling, parallelization and mesh truncation. New applications which illustrate the method’s capabilities, versatility and utility for general purpose applications are discussed. Specifically, new finite element modeling of antennas on doubly curved platforms, bandpass radomes and jet engine scattering are presented using a variety of mesh truncation schemes (boundary integral, absorbing boundary conditions and perfectly matched absorbers) are presented. Also, an entire section of the chapter is devoted to a reduced order method based on the Padè expansion. This reduced order method is used to obtain broadband responses from a few data points of the entire response. It is introduced in this chapter for the first time in connection with hybrid finite element systems and promises substantial computational savings.

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Authors and Affiliations

  1. University of Michigan, Ann Arbor, MI, USA

    John L. Volakis, Jian Gong & Tayfun Ozdemir

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  1. John L. Volakis
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  2. Jian Gong
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  3. Tayfun Ozdemir
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Editors and Affiliations

  1. NASA Langley Research Center, Hampton, Virginia, USA

    Thomas G. Campbell

  2. Carnegie Mellon University, Pittsburgh, Pennsylvania, USA

    R. A. Nicolaides

  3. Institute for Computer Applications in Science and Engineering (ICASE), NASA Langley Research Center, Hampton, Virginia, USA

    Manuel D. Salas

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Volakis, J.L., Gong, J., Ozdemir, T. (1997). Large Hybrid Finite Element Methods for Electromagnetics. In: Campbell, T.G., Nicolaides, R.A., Salas, M.D. (eds) Computational Electromagnetics and Its Applications. ICASE/LaRC Interdisciplinary Series in Science and Engineering, vol 5. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5584-7_12

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  • DOI: https://doi.org/10.1007/978-94-011-5584-7_12

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