A three-dimensional self-adaptive hp finite element method for the characterization of waveguide discontinuities

Gómez Revuelto, Ignacio and García Castillo, Luis E. and Llorente Romano, Sergio and Pardo, David (2012). A three-dimensional self-adaptive hp finite element method for the characterization of waveguide discontinuities. "Computer Methods in Applied Mechanics and Engineering", v. 249-25 (n. null); pp. 62-74. ISSN 0045-7825. https://doi.org/10.1016/j.cma.2012.05.013.

Description

Title: A three-dimensional self-adaptive hp finite element method for the characterization of waveguide discontinuities
Author/s:
  • Gómez Revuelto, Ignacio
  • García Castillo, Luis E.
  • Llorente Romano, Sergio
  • Pardo, David
Item Type: Article
Título de Revista/Publicación: Computer Methods in Applied Mechanics and Engineering
Date: December 2012
ISSN: 0045-7825
Volume: 249-25
Subjects:
Faculty: E.U.I.T. Telecomunicación (UPM)
Department: Ingeniería Audiovisual y Comunicaciones [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

We propose the use of a highly-accurate three-dimensional (3D) fully automatic hp-adaptive finite element method (FEM) for the characterization of rectangular waveguide discontinuities. These discontinuities are either the unavoidable result of mechanical/electrical transitions or deliberately introduced in order to perform certain electrical functions in modern communication systems. The proposed numerical method combines the geometrical flexibility of finite elements with an accuracy that is often superior to that provided by semi-analytical methods. It supports anisotropic refinements on irregular meshes with hanging nodes, and isoparametric elements. It makes use of hexahedral elements compatible with high-order H(curl)H(curl) discretizations. The 3D hp-adaptive FEM is applied for the first time to solve a wide range of 3D waveguide discontinuity problems of microwave communication systems in which exponential convergence of the error is observed.

More information

Item ID: 16833
DC Identifier: http://oa.upm.es/16833/
OAI Identifier: oai:oa.upm.es:16833
DOI: 10.1016/j.cma.2012.05.013
Official URL: http://www.sciencedirect.com/science/article/pii/S0045782512001624
Deposited by: Memoria Investigacion
Deposited on: 18 Oct 2013 19:13
Last Modified: 21 Apr 2016 17:11
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