Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
Efficient Analysis of Multilayered Periodic Structures with Application to the Design of Reflectarray Antennas
Año:2011
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones
Datos
Descripción
In order to design reflectarray antennas within reasonable CPU times, fast and accurate numerical tools for the analysis of periodic multilayered structures are required. In this paper the method of moments in the spectral domain (MoM-SD) based on multilayered Green's functions (MGF) is applied to the analysis of periodic structures containing either multilayered stacked patches in the unit cell or coplanar parallel dipoles in the unit cell. These two multiresonant cells are potential elements for the design of reflectarray antennas. In the paper we show that the use of basis functions with edge singularities in the approximation of the current density on the patches/dipoles leads to important computer memory and CPU times savings in the analysis of the periodic structures. Also, a rational fitting technique is introduced which makes it possible to obtain closed-form expressions for the scattering matrix of the periodic structures in terms of the dimension of the patches/dipoles used to adjust the phase of the reflectarray elements. Finally, it is shown that reflectarray antennas made of parallel dipoles and reflectarray antennas made of stacked patches have a similar performance in terms of bandwidth and phase range. However, the former antennas are preferable to the latter since they are simpler to manufacture and cheaper.
Internacional
Si
Nombre congreso
VIII EIEC Encuentro Ibérico de Electromagnetismo Computacional
Tipo de participación
960
Lugar del congreso
SESIMBRA (PORTUGAL)
Revisores
Si
ISBN o ISSN
DOI
Fecha inicio congreso
02/11/2011
Fecha fin congreso
04/11/2011
Desde la página
Hasta la página
Título de las actas
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Rafael Florencio Díaz (UPM)
  • Autor: Rafael Rodríguez Boix (Universidad de Sevilla)
  • Autor: Jose Antonio Encinar Garcinuño (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Electromagnetismo y Teoría de Circuitos
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)