Experimental Demonstration of Printed Graphene Nanoflakes Enabled Flexible and Conformable Wideband Radar Absorbers

Xianjun Huang, Kewen Pan, Zhirun Hu

    Research output: Contribution to journalArticlepeer-review

    Abstract

    In this work, we have designed, fabricated and experimentally characterized a printed graphene nano-flakes enabled flexible and conformable wideband radar absorber. The absorber covers both X (8-12 GHz) and Ku (12-18 GHz) bands and is printed on flexible substrate using graphene nano-flakes conductive ink through stencil printing method. The measured results show that an effective absorption (above 90%) bandwidth spans from 10.4 GHz to 19.7 GHz, namely a 62% fraction bandwidth, with only 2mm thickness. The flexibility of the printed graphene nano-flakes enables the absorber conformably bending and attaching to a metal cylinder. The radar cross section (RCS) of the cylinder with and without absorber attachment has been compared and excellent absorption has been obtained. Only 3.6% bandwidth reduction has been observed comparing to that of un-bended absorber. This work has demonstrated unambiguously that printed graphene can provide flexible and conformable wideband radar absorption, which extends the graphene’s application to practical RCS reductions.
    Original languageEnglish
    Article number38197
    JournalScientific Reports
    Volume6
    Early online date7 Dec 2016
    DOIs
    Publication statusPublished - 2016

    Keywords

    • Printed graphene, Radar absorber, Flexibility, Wideband absorber

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