Optimized design of a miniaturized waveguide with SRR-loaded lateral walls

E. Rajo-Iglesias*, O. Quevedo Teruel, Mou-Kehn Ng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work deals with the use of split ring resonator (SRR) as the periodic loading over dielectric slabs placed on the sidewalls of a rectangular waveguide. This type of loading creates an unusual pass-band mode below the waveguide cut-off frequency which indeed appears to be a backward type mode. By using an external ant colony optimization (ACO) algorithm, the dimensions of the unit cell have been optimized to obtain the passband at the lowest frequency. The motivation of doing so is for miniaturization and to achieve a wide bandgap separation from the ordinary dominant modal passband. The optimization was performed based on the dispersion diagrams. The behaviour of the loaded waveguide has been studied also in transmission and the backward characteristic demonstrated. Experimental results are currently in progress.

Original languageEnglish
Title of host publication2nd European Conference on Antennas and Propagation, EuCAP 2007
Edition11961
DOIs
StatePublished - 1 Dec 2007
Event2nd European Conference on Antennas and Propagation, EuCAP 2007 - Edinburgh, United Kingdom
Duration: 11 Nov 200716 Nov 2007

Publication series

NameIET Seminar Digest
Number11961
Volume2007

Conference

Conference2nd European Conference on Antennas and Propagation, EuCAP 2007
CountryUnited Kingdom
CityEdinburgh
Period11/11/0716/11/07

Keywords

  • Backward mode.
  • Miniaturized waveguide
  • SRR

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