Diamond-shaped hole array in double-layer metal sheets for negative index of refraction
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, vol.27, no.4, pp.413-420, 2013 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 27 Issue: 4
- Publication Date: 2013
- Doi Number: 10.1080/09205071.2013.748437
- Journal Name: JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.413-420
- Middle East Technical University Northern Cyprus Campus Affiliated: Yes
Abstract
In this paper, a new design of hole array in a double-layer periodic arrangement is introduced and investigated both numerically and experimentally for the negative index of refraction. The structure shows similar behavior to that of the corresponding fishnet metamaterials. The effective constitutive parameters are revealed by using retrieval procedure to verify the negative refraction nature of the proposed structure. A relatively high figure of merit (FOM=Re(n)/Im(n)=70.05) is achieved at the K-band (1826.5) frequency region.