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:
Oct. 29, 2019
Filed:
Aug. 21, 2009
David R. Smith, Durham, NC (US);
Ruopeng Liu, Durham, NC (US);
Tie Jun Cui, Nanjing, CN;
Qiang Cheng, Nanjing, CN;
Jonah N. Gollub, San Diego, CA (US);
David R. Smith, Durham, NC (US);
Ruopeng Liu, Durham, NC (US);
Tie Jun Cui, Nanjing, CN;
Qiang Cheng, Nanjing, CN;
Jonah N. Gollub, San Diego, CA (US);
Duke University, Durham, NC (US);
Abstract
Complementary metamaterial elements provide an effective permittivity and/or permeability for surface structures and/or waveguide structures. The complementary metamaterial resonant elements may include Babinet complements of 'split ring resonator' (SRR) and 'electric LC' (ELC) metamaterial elements. In some approaches, the complementary metamaterial elements are embedded in the bounding surfaces of planar waveguides, e.g. to implement waveguide based gradient index lenses for beam steering/focusing devices, antenna array feed structures, etc.