Numerical and experimental investigation of fishnet-based metamaterial in a X-band waveguide
JOURNAL OF PHYSICS D-APPLIED PHYSICS, vol.44, no.25, 2011 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 44 Issue: 25
- Publication Date: 2011
- Doi Number: 10.1088/0022-3727/44/25/255101
- Journal Name: JOURNAL OF PHYSICS D-APPLIED PHYSICS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Open Archive Collection: AVESIS Open Access Collection
- Middle East Technical University Northern Cyprus Campus Affiliated: No
Abstract
In this paper, a fishnet-based metamaterial for the microwave X-band frequencies is introduced and investigated both numerically and experimentally. The main innovation introduced here is that the structure is composed of dielectric and metallic parts in such a way that there is no connection between the metallic part of the metamaterial and the waveguide. The homogeneous-effective-medium theory is employed for the characterization of the structure. A left-handed region is identified using the simulated and experimental results. The performance of the structure is described by a figure-of-merit calculation. The measured results are in good agreement with the simulated ones which show that the proposed metamaterial operates well like a fishnet metamaterial at around 10 GHz.