Duke University

Tie Jun Cui

David R Smith

Ruopeng Liu

Qiang Cheng

Jonah N Gollub

Yao Qin

Jessie Yao Chin

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.

Metamaterials for surfaces and waveguides

Broadband metamaterial apparatus, methods, systems, and computer readable media are disclosed, as well as exemplary embodiments that provide cloaking, beam steering, and beam focusing. In one exemplary implementation, a broadband interface structure has a front surface region and a back surface region. The broadband interface structure is arranged to provide electromagnetic energy characteristic of an apparent profile of the back surface region substantially different than an actual profile of the back surface region for electromagnetic energy received at the front surface region.

Broadband metamaterial apparatus, methods, systems, and computer readable media

Growing community of inventors

Nanjing, China

Tie Jun Cui