The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 2011
Filed:
Nov. 14, 2006
Costas M. Soukoulis, Ames, IA (US);
Jiangfeng Zhou, Ames, IA (US);
Thomas Koschny, Ames, IA (US);
Lei Zhang, Ames, IA (US);
Gary Tuttle, Ames, IA (US);
Costas M. Soukoulis, Ames, IA (US);
Jiangfeng Zhou, Ames, IA (US);
Thomas Koschny, Ames, IA (US);
Lei Zhang, Ames, IA (US);
Gary Tuttle, Ames, IA (US);
Iowa State University Research Foundation, Inc., Ames, IA (US);
Abstract
The invention provides simplified negative index materials (NIMs) using wire-pair structures, 4-gap single ring split-ring resonator (SRR), fishnet structures and overleaf capacitor SRR. In the wire-pair arrangement, a pair of short parallel wires and continuous wires are used. In the 4-gap single-ring SRR, the SRRs are centered on the faces of a cubic unit cell combined with a continuous wire type resonator. Combining both elements creates a frequency band where the metamaterial is transparent with simultaneously negative ∈ and μ. In the fishnet structure, a metallic mesh on both sides of the dielectric spacer is used. The overleaf capacitor SRR changes the gap capacities to small plate capacitors by making the sections of the SRR ring overlap at the gaps separated by a thin dielectric film. This technique is applicable to conventional SRR gaps but it best deploys for the 4-gap single-ring structures.