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Title: Artificial magnetic conductor surfaces and their application to low-profile high-gain planar antennas
Authors: Feresidis, Alexandros P.
Goussetis, George
Wang, Shenhong
Vardaxoglou, J.C.
Keywords: Arrays
Artificial magnetic conductors
Electromagnetic bandgap structures
High-gain antennas
Low-profile antennas
Issue Date: 2005
Publisher: © Institute of Electrical and Electronics Engineers (IEEE)
Citation: FERESIDIS, A.P. ... et al., 2005. Artificial magnetic conductor surfaces and their application to low-profile high-gain planar antennas. IEEE Transactions on Antennas and Propagation, 53 (1), pp. 209 - 215
Abstract: Planar periodic metallic arrays behave as artificial magnetic conductor (AMC) surfaces when placed on a grounded dielectric substrate and they introduce a zero degrees reflection phase shift to incident waves. In this paper the AMC operation of single-layer arrays without vias is studied using a resonant cavity model and a new application to high-gain printed antennas is presented. A ray analysis is employed in order to give physical insight into the performance of AMCs and derive design guidelines. The bandwidth and center frequency of AMC surfaces are investigated using full-wave analysis and the qualitative predictions of the ray model are validated. Planar AMC surfaces are used for the first time as the ground plane in a high-gain microstrip patch antenna with a partially reflective surface as superstrate. A significant reduction of the antenna profile is achieved. A ray theory approach is employed in order to describe the functioning of the antenna and to predict the existence of quarter wavelength resonant cavities.
Description: This article was published in the journal, IEEE Transactions on Antennas and Propagation [© IEEE], and is available at: http://dx.doi.org/10.1109/TAP.2004.840528. 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.
Sponsor: This work was supported by the Engineering and Physical Sciences Research Council (EPSRC) of the U.K., under research grant GR/R42580/01.
Version: Published
DOI: 10.1109/TAP.2004.840528
URI: https://dspace.lboro.ac.uk/2134/9424
Publisher Link: http://dx.doi.org/10.1109/TAP.2004.840528
ISSN: 0018-926X
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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