Oblique incidence performance of a novel frequency selective surface absorber

Ghaffer I. Kiani*, Kenneth L. Ford, Karu P. Esselle, Andrew R. Weily, Chinthana J. Panagamuwa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

91 Citations (Scopus)
10 Downloads (Pure)

Abstract

Oblique incidence performance of a novel two-layer absorb/transmit frequency selective surface (FSS) is investigated. The FSS has good frequency stability for both horizontally and vertically polarized waves incident normally or at oblique angles. Due to its transmission for 900/ 1800/1900 MHz mobile bands and good absorption for 5 GHz waves, it has the potential as a security wall or isolator for 5 GHz WLAN systems. The absorption in the stop band helps reduce additional WLAN multipath fading caused by conventional reflecting FSS designs. The first layer of the FSS consists of conventional conducting cross dipoles having a circular aperture in the centre, while the second layer uses resistive cross dipoles. Moreover, the conducting cross dipoles have been sandwiched between two dielectric sheets to achieve a stable response for different angles of incidence. The periodicity of both FSS layers is the same while the distance between the two layers is reduced to one eighth of the free-space wavelength. This reduction leads to a more compact design compared to the conventional Salisbury screen, while still achieving acceptable absorption in the stopband. Both theoretical and experimental results are presented to confirm the performance of the absorb/transmit FSS.

Original languageEnglish
Pages (from-to)2931-2934
Number of pages4
JournalIEEE Transactions on Antennas and Propagation
Volume55
Issue number10
DOIs
Publication statusPublished - Oct 2007

Bibliographical note

Copyright 2007 IEEE. Reprinted from IEEE transactions on antennas and propagation. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Macquarie University’s products or services. Internal or 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 must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

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