Scattering cross-section of a transformation optics-based metamaterial cloak

Journal Article (Journal Article)

We present experimental quantitative scattering cross-section (SCS) measurements for a metamaterial cloak. The cloak is nearly identical to that reported in 2006; however, quantitative experimental measurements have not yet been reported for such a structure. This cylindrically symmetric cloak is designed to operate at a frequency of 10 GHz and to reduce the SCS of a cylinder 50 mm in diameter. Despite being only a crude approximation of the ideal transformation optical design, the fabricated metamaterial cloak is shown to reduce the SCS of the cylinder over the frequency range from 9.91 to 10.14GHz, a span of 230MHz or a 2.3% bandwidth. The maximum reduction in the SCS is 24%. This result provides a useful experimental, quantitative benchmark that can form the basis for comparison of the performances of future improved cloaking structures. © IOP Publishing Ltd and Deutsche Physikalische Gesellschan.

Full Text

Duke Authors

Cited Authors

  • Kundtz, N; Gaultney, D; Smith, DR

Published Date

  • April 22, 2010

Published In

Volume / Issue

  • 12 /

International Standard Serial Number (ISSN)

  • 1367-2630

Digital Object Identifier (DOI)

  • 10.1088/1367-2630/12/4/043039

Citation Source

  • Scopus