Broadening the cloaking bandwidth with non-foster metasurfaces

Pai Yen Chen, Christos Argyropoulos, Andrea Alù

Research output: Contribution to journalArticlepeer-review


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 a practical realization, we show that it is possible to drastically reduce the 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 invisibility and camouflaging, but also practical antenna and sensing applications.

Original languageEnglish (US)
Article number233001
JournalPhysical review letters
Issue number23
StatePublished - Dec 3 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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