Numerical and experimental investigation of fishnet-based metamaterial in a X-band waveguide
JOURNAL OF PHYSICS D-APPLIED PHYSICS, cilt.44, sa.25, 2011 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 44 Sayı: 25
- Basım Tarihi: 2011
- Doi Numarası: 10.1088/0022-3727/44/25/255101
- Dergi Adı: JOURNAL OF PHYSICS D-APPLIED PHYSICS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Orta Doğu Teknik Üniversitesi Kuzey Kıbrıs Kampüsü Adresli: Hayır
Özet
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.