A modified pole-zero technique for the synthesis of waveguide leaky-wave antennas loaded with dipole-based FSS

Maria Garcia-Vigueras, Jose Luis Gomez-Tornero, George Goussetis, Juan Sebastian Gomez-Diaz, Alejandro Alvarez-Melcon

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

An extension of the pole-zero matching method proposed by Stefano Maci for the analysis of electromagnetic bandgap (EBG) structures composed by lossless dipole-based frequency selective surfaces (FSS) printed on stratified dielectric media, is presented in this paper. With this novel expansion, the dipoles length appears as a variable in the analytical dispersion equation. Thus, modal dispersion curves as a function of the dipoles length can be easily obtained with the only restriction of single Floquet mode propagation. These geometry-dispersion curves are essential for the efficient analysis and design of practical EBG structures, such as waveguides loaded with artificial magnetic conductors (AMC) for miniaturization, or leaky-wave antennas (LWA) using partially reflective surfaces (PRS). These two practical examples are examined in this paper. Results are compared with full-wave 2D and 3D simulations showing excellent agreement, thus validating the proposed technique and illustrating its utility for practical designs. © 2010 IEEE.

Original languageEnglish
Pages (from-to)1971-1979
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume58
Issue number6
DOIs
Publication statusPublished - Jun 2010

Keywords

  • design
  • electromagnetic bandgap structures (EBG)
  • Artificial magnetic conductors (AMC)
  • leaky-wave antennas (LWA)
  • periodic surfaces
  • frequency selective surfaces (FSS)
  • surfaces
  • arrays
  • partially reflective surfaces (PRS)
  • transmission line networks

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