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Title: Feasibility of graphene CRLH metamaterial waveguides and leaky wave antennas

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4955138· OSTI ID:22597885
;  [1];  [1]
  1. Department of Electrical Engineering, University of California, Los Angeles, California 90095 (United States)

The feasibility of composite right/left-handed (CRLH) metamaterial waveguides based upon graphene plasmons is demonstrated via numerical simulation. Designs are presented that operate in the terahertz frequency range along with their various dimensions. Dispersion relations, radiative and free-carrier losses, and free-carrier based tunability are characterized. Finally, the radiative characteristics are evaluated, along with its feasibility for use as a leaky-wave antenna. While CRLH waveguides are feasible in the terahertz range, their ultimate utility will require precise nanofabrication, and excellent quality graphene to mitigate free-carrier losses.

OSTI ID:
22597885
Journal Information:
Journal of Applied Physics, Vol. 120, Issue 1; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
Country of Publication:
United States
Language:
English