Improvements in the MoM analysis of 3-D planar multilayered periodic structures used in the design of wideband reflectarray antennas

Florencio Díaz, Rafael and Rodríguez Boix, Rafael and Encinar Garcinuño, Jose Antonio (2015). Improvements in the MoM analysis of 3-D planar multilayered periodic structures used in the design of wideband reflectarray antennas. In: "9th European Conference on Antennas and Propagation (EuCAP 2015)", 12/04/2015 - 17/04/2015, Lisbon, Portugal. pp. 1-5.

Description

Title: Improvements in the MoM analysis of 3-D planar multilayered periodic structures used in the design of wideband reflectarray antennas
Author/s:
  • Florencio Díaz, Rafael
  • Rodríguez Boix, Rafael
  • Encinar Garcinuño, Jose Antonio
Item Type: Presentation at Congress or Conference (Article)
Event Title: 9th European Conference on Antennas and Propagation (EuCAP 2015)
Event Dates: 12/04/2015 - 17/04/2015
Event Location: Lisbon, Portugal
Title of Book: 9th European Conference on Antennas and Propagation (EuCAP 2015)
Date: 2015
Subjects:
Freetext Keywords: Multilayered media, moment methods, periodic structures, reflectarrays
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electromagnetismo y Teoría de Circuitos [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainCICYT TEC2013-43345-PUnspecifiedMinisterio de Ciencia e InnovaciónUnspecified
Government of SpainCICYT TEC2013-41913-PUnspecifiedMinisterio de Ciencia e InnovaciónUnspecified

More information

Item ID: 42110
DC Identifier: http://oa.upm.es/42110/
OAI Identifier: oai:oa.upm.es:42110
Deposited by: Memoria Investigacion
Deposited on: 03 Sep 2016 09:23
Last Modified: 03 Sep 2016 09:23
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