Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications

Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications

The mutual coupling between elements of a multifrequency dipole antenna array is experimentally investigated by S-parameter measurements and planar near-field scanning of the radiated field. A multifrequency array with six dipoles is analyzed. In order to reduce the coupling between dipoles, a plana...

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Main Authors: E. Saenz, K. Guven, E. Ozbay, I. Ederra, R. Gonzalo
Format: Article
Language:English
Published: Hindawi Limited 2010-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2010/843624
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spelling doaj-472187c76b4b43ff93c983fb1e17ddff2020-11-24T22:34:13ZengHindawi LimitedInternational Journal of Antennas and Propagation1687-58691687-58772010-01-01201010.1155/2010/843624843624Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging ApplicationsE. Saenz0K. Guven1E. Ozbay2I. Ederra3R. Gonzalo4Electrical and Electronic Engineering Department, Public University of Navarra, Campus Arrosadia, 31006 Pamplona, SpainNanotechnology Research Center, Bilkent University, Bilkent, Ankara, 06800, TurkeyNanotechnology Research Center, Bilkent University, Bilkent, Ankara, 06800, TurkeyElectrical and Electronic Engineering Department, Public University of Navarra, Campus Arrosadia, 31006 Pamplona, SpainElectrical and Electronic Engineering Department, Public University of Navarra, Campus Arrosadia, 31006 Pamplona, SpainThe mutual coupling between elements of a multifrequency dipole antenna array is experimentally investigated by S-parameter measurements and planar near-field scanning of the radiated field. A multifrequency array with six dipoles is analyzed. In order to reduce the coupling between dipoles, a planar metasurface is placed atop the array acting as superstrate. The mutual coupling of the antenna elements in the absence and presence of the superstrate is presented comparatively. Between 3 and 20 dB mutual coupling reduction is achieved when the superstrate is used. By scanning the field radiated by the antennas and far-field measurements of the radiation pattern, it is observed that the superstrate confines the radiated power, increases the boresight radiation, and reduces the endfire radiation.http://dx.doi.org/10.1155/2010/843624
collection DOAJ
language English
format Article
sources DOAJ
author E. Saenz
K. Guven
E. Ozbay
I. Ederra
R. Gonzalo
spellingShingle E. Saenz
K. Guven
E. Ozbay
I. Ederra
R. Gonzalo
Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications
International Journal of Antennas and Propagation
author_facet E. Saenz
K. Guven
E. Ozbay
I. Ederra
R. Gonzalo
author_sort E. Saenz
title Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications
title_short Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications
title_full Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications
title_fullStr Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications
title_full_unstemmed Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications
title_sort decoupling of multifrequency dipole antenna arrays for microwave imaging applications
publisher Hindawi Limited
series International Journal of Antennas and Propagation
issn 1687-5869
1687-5877
publishDate 2010-01-01
description The mutual coupling between elements of a multifrequency dipole antenna array is experimentally investigated by S-parameter measurements and planar near-field scanning of the radiated field. A multifrequency array with six dipoles is analyzed. In order to reduce the coupling between dipoles, a planar metasurface is placed atop the array acting as superstrate. The mutual coupling of the antenna elements in the absence and presence of the superstrate is presented comparatively. Between 3 and 20 dB mutual coupling reduction is achieved when the superstrate is used. By scanning the field radiated by the antennas and far-field measurements of the radiation pattern, it is observed that the superstrate confines the radiated power, increases the boresight radiation, and reduces the endfire radiation.
url http://dx.doi.org/10.1155/2010/843624
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AT iederra decouplingofmultifrequencydipoleantennaarraysformicrowaveimagingapplications
AT rgonzalo decouplingofmultifrequencydipoleantennaarraysformicrowaveimagingapplications
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