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Artificial magnetic conductor surfaces and their application to low-profile high-gain planar antennas

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posted on 01.03.2012, 13:39 by Alexandros P. Feresidis, George Goussetis, Shenhong Wang, J. C. Vardaxoglou
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.

Funding

This work was supported by the Engineering and Physical Sciences Research Council (EPSRC) of the U.K., under research grant GR/R42580/01.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

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

Publisher

© Institute of Electrical and Electronics Engineers (IEEE)

Version

VoR (Version of Record)

Publication date

2005

Notes

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.

ISSN

0018-926X

Language

en

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