Uniplanar left-handed artificial metamaterials

George Goussetis, Alexandros P Feresidis, Shenhong Wang, Yunchuan Guo, John C Vardaxoglou

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Planar periodic arrays of metallic elements printed on grounded dielectric substrates are presented to exhibit left-handed properties for surface wave propagation. The proposed structures dispense with the need for grounding vias and ease the implementation of uniplanar left-handed metamaterials at higher frequencies. A transmission line description is used for the initial design and interpretation of the left-handed property. A thorough study based on full wave simulations is carried out with regards to the effect of the element geometrical characteristics and the array periodicity to the properties of the artificial material. Dispersion curves are presented and studied. The distribution of the modal fields in the unit cell is also studied in order to provide an explanation of the material properties. The scalability of the proposed structures to infrared frequencies is demonstrated.

Original languageEnglish
Pages (from-to)S44-S50
Number of pages7
JournalJournal of Optics A: Pure and Applied Optics
Volume7
Issue number2
DOIs
Publication statusPublished - Feb 2005

Keywords

  • negative refraction
  • band gap
  • negative refractive index
  • metamaterials
  • transmission lines
  • left-handed media

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