Broadening the Bandwidth of Metamaterial Cloaks with Non-Foster Metasurfaces

  title={Broadening the Bandwidth of Metamaterial Cloaks with Non-Foster Metasurfaces},
  author={Pai-Yen Chen and Christos Argyropoulos and Andrea Al{\'u}},
We introduce the concept and practical design of broadband, ultrathin cloaks based on non-Foster, negatively capacitive metasurfaces. By using properly tailored, active frequency-selective screens conformal to an object, within the realm of practical realization, is shown to enable drastically reduced scattering over a wide frequency range in the microwave regime, orders of magnitude broader than any available passive cloaking technology. The proposed active cloak may impact not only… Expand
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