Novel microstrip backward coupler with metamaterial cells for fully planar fabrication techniques

E. Jarauta, M. A.G. Laso, T. Lopetegi, F. Falcone, M. Beruete, J. D. Baena, A. Marcotegui, J. Bonache, J. García, R. Marqués, F. Martín

Research output: Contribution to journalArticleResearchpeer-review

15 Citations (Scopus)

Abstract

By using a recently proposed approach to synthesize ID metamalerials in planar circuit technology, compatible with fully planar fabrication techniques, a novel backward coupler has been designed and fabricated. It has been implemented in microstrip technology by means of complementary split-ring resonators (CSRRs), etched in the ground plane, and series capacitive gaps. This way, we obtain the necessary left-handed properties for reversing the forward coupling (typical of co-directional coupled-line couplers) into hackward coupling. The simulation as well as measurement results confirm the enhanced properties of the proposed couplers. © 2006 Wiley Periodicals, Inc.
Original languageEnglish
Pages (from-to)1205-1209
JournalMicrowave and Optical Technology Letters
Volume48
DOIs
Publication statusPublished - 1 Jun 2006

Keywords

  • Backward couplers
  • Left-handed media
  • Metamaterials
  • Microstrip line
  • Splitring resonator

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