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The electromagnetic properties of re-entrant dielectric honeycombs

Smith, F.C., Scarpa, F. and Chambers, B. (2000) The electromagnetic properties of re-entrant dielectric honeycombs. IEEE Microwave and Guided Wave Letters, 10 (11). pp. 451-453. ISSN 1051-8207


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Dielectric honeycombs are cellular materials often used in applications that require structural and electromagnetic characteristics, e.g., in LO (low observable) and radome components. A re-entrant (or auxetic) honeycomb is a cellular material with structural properties that are superior to those of a conventional honeycomb. By employing the finite-difference time-domain (FDTD) technique with periodic boundary conditions, the electromagnetic properties of re-entrant honeycombs are determined and compared to those of a conventional honeycomb. Re-entrant honeycombs are shown to have substantially superior electromagnetic properties. Measured permittivity data are used to substantiate the conclusions based on predicted FDTD data. The use of re-entrant honeycombs, rather than conventional honeycombs, in LO and radome applications can yield improved structural and electromagnetic performance

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © 2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: dielectric materials, FDTD, microwave measurements
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield)
Depositing User: Sherpa Assistant
Date Deposited: 07 Dec 2005
Last Modified: 04 Jun 2014 16:54
Published Version: http://dx.doi.org/10.1109/75.888829
Status: Published
Refereed: Yes
Identification Number: 10.1109/75.888829
URI: http://eprints.whiterose.ac.uk/id/eprint/807

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