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Filtering lens structure based on SRRs in the low THz band

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IIT-09-102A.pdf (648.8Kb)
Date
01/05/2009
Author
Andrés García, Belén
García Muñoz, Luis Enrique
González Posadas, Vicente
Herraiz Martínez, Francisco Javier
Segovia Vargas, Daniel
Estado
info:eu-repo/semantics/publishedVersion
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Abstract
 
 
A filtering lens for conical horns based on Metamaterials is presented. The paper focuses on a millimeter wave application. The metamaterial structure is composed of a printed layer of Split Ring Resonators (SRRs) on a substrate. The structure is used as a superstrate on the horn aperture. When the SRRs are excited, a filter performance arises preventing radiation in the desired frequency bands. Besides the filtering property, also a lens behavior is achieved. In this way larger gain can be achieved in both E and H planes, reducing the 3 dB beamwidth. A 6% -3 dB stop band is achieved from 73.3 GHz to 85.7 GHz. Symmetrisation of the radiation pattern up to 3 dB is accomplished and the focalization effect is achieved by emulating a hyperbolical-plane lens. Thus, a simplified system based on a conical horn can be designed by unifying the filter and lens in one electromagnetic element.
 
DOI
10.2528/PIER09040105
Filtering lens structure based on SRRs in the low THz band
Tipo de Actividad
Artículos en revistas
ISSN
1070-4698
Materias/ categorías / ODS
Instituto de Investigación Tecnológica (IIT)
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