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Multilayer cylindrical invisibility cloak at microwave frequencies built from polymer and carbon nanotubes
Author(s) -
Danlée Yann,
Huynen Isabelle,
Bailly Christian
Publication year - 2017
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30226
Subject(s) - cloak , microwave , carbon nanotube , materials science , invisibility , permittivity , anisotropy , electromagnetic shielding , electrical conductor , composite material , optics , metamaterial , optoelectronics , physics , dielectric , quantum mechanics
We present a multilayered invisibility cloak effective at microwave frequencies based on carbon nanotubes (CNT) and polymer foam. The structure deflects transverse magnetic (TM) waves at 6GHz to reconstruct the incoming wave front beyond an obstacle. This is achieved with the help of nested cylindrical arrangements of anisotropic conductive films and insulating foam spacers, which provide the correct gradient of effective permittivity in the radial direction. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:65–69, 2017