Multiband Microwave Metamaterials Based on Optimized Arrangements of Split-Ring Resonators


Ibili H., Keles S., Ergul Ö. S.

PhotonIcs and Electromagnetics Research Symposium - Spring (PIERS-Spring), Rome, Italy, 17 - 20 June 2019, pp.779-788 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/piers-spring46901.2019.9017789
  • City: Rome
  • Country: Italy
  • Page Numbers: pp.779-788
  • Middle East Technical University Affiliated: Yes

Abstract

We present design and accurate simulations of multiband metamaterials that consist of three-dimensional arrangements of split-ring resonators (SRRs). In order to obtain multiband characteristics with resonances at multiple frequencies, SRRs with different sizes are arranged in well-designed grids. As opposed to unit cells with nested SRRs that are commonly used in the literature, using different-sized SRRs in array forms provide better flexibility in choosing resonance frequencies. On the other hand, strong interactions between SRRs may significantly deteriorate the quality of resonances, particularly inter-resonance transparencies. We consider all geometric parameters, i.e., sizes, distances, and numbers of SRRs, in order to design high-performance configurations with excellent transmission properties. Selected designs are further fabricated via low-cost inkjet printing to demonstrate their performances in measurement setups.