A Perturbational Technique for the Fast Modelling of Printed Reflectarray Elements

Abstract

This paper presents a novel method for the element characterization of printed reflectarray antennas. Their characterization requires the calculation of the phase of the reflection coefficient versus the patch dimension (phase diagram), when the structure is illuminated by a uniform plane wave. The calculation of the phase diagram is based on the full-wave analysis of the structure in a limited number of points, and a polynomial interpolation of the phase, which takes advantage of a perturbational technique for estimating the phase derivative. This approach significantly reduces the computing time for the calculation of the phase diagram, as shown through an example.

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Document Details

Document Type
Technical Report
Publication Date
Apr 23, 2004
Accession Number
ADA438828

Entities

People

  • Luca Perregrini
  • Maurizio Bozzi

Organizations

  • University of Pavia

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Coefficients
  • Diagrams
  • Eigenvalues
  • Eigenvectors
  • Equations
  • Frequency
  • Frequency Response
  • Helmholtz Equations
  • Integral Equations
  • Integrals
  • Interpolation
  • Phase
  • Phase Diagrams
  • Reflection
  • Reflectors
  • Standards

Fields of Study

  • Engineering

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Phased Array Antenna Design.