Memorias de investigación
Ponencias en congresos:
Improvements in the MoM Analysis of 3-D Planar Multilayered Periodic Structures Used in the Design of Wideband Reflectarray Antennas
Año:2015
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones
Datos
Descripción
When reflectarray antennas made of cells with stacked rectangular patches are designed under the local periodicity assumption, one needs to solve many times the problem of the scattering of plane waves by periodic arrays of stacked rectangular patches in multilayered substrates. Although this problem has been usually tackled by means of the Method of Moments (MoM) in the spectral domain, this is not an efficient computational approach since it requires the determination of slowly convergent double infinite summations. In this paper, the slowly convergent summations are transformed into singular finite double integrals by invoking the Mixed Potential Integral Equation (MPIE) formulation of the MoM in the spatial domain. The multilayered periodic Green?s functions involved in these double integrals are judiciously interpolated in terms of 2-D Chebyshev polynomials. Also, Ma-Rokhlin-Wandzura quadrature rules are used to handle the logarithmic singularities of the double integrals. Thanks to these two strategies that help to save CPU time, the novel MoM approach in the spatial domain turns out to be between one and two orders of magnitude faster than the standard MoM approach in the spectral domain for the analysis of periodic structures made of cells with stacked rectangular patches (and therefore, for the design of the reflectarray antennas containing these cells) when an accuracy of two significant figures is required.
Internacional
Si
Nombre congreso
9th European Conference on Antennas and Propagation
Tipo de participación
730
Lugar del congreso
Lisboa (Portugal)
Revisores
Si
ISBN o ISSN
9781479970513
DOI
Fecha inicio congreso
12/04/2015
Fecha fin congreso
17/04/2015
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Título de las actas
Proceedings of 9th European Conference on Antennas and Propagation
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Electromagnetismo Aplicado
  • Departamento: Señales, Sistemas y Radiocomunicaciones