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Artificial magnetic conductor surfaces and their application to low-profile high-gain planar antennas
journal contribution
posted on 2012-03-01, 13:39 authored by Alexandros P. Feresidis, George Goussetis, Shenhong Wang, J. C. VardaxoglouPlanar 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 - 215Publisher
© Institute of Electrical and Electronics Engineers (IEEE)Version
- VoR (Version of Record)
Publication date
2005Notes
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
0018-926XPublisher version
Language
- en