Publication:
Experimental demonstration of metamaterials application for mitigating scan blindness in phased array antennas

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Date

2016

Authors

Crépin, Thomas
Martel, Cédric
Boust, Fabrice
Loecker, Claudius
Herbertz, Kai
Bertuch, Thomas
Dousset, Thierry
Martinaud, Jean-Paul

Director

Publisher

EDP Sciences
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión publicada / Argitaratu den bertsioa

Project identifier

Abstract

This paper presents two metamaterial-inspired solutions to mitigate the scan blindness effects in a phased array antenna. In the first solution, portions of a bed of nails are introduced in the radome to prevent the excitation of surface waves. In the second solution, a superstrate metasurface is designed to synthesize a permittivity tensor optimized to achieve a wide angle impedance matching. In both approaches, the numerical simulations are successfully compared with measurements of a phased array antenna prototype with 100 elements. The wire medium-based solution reveals an effective way for reducing the blind-spot in a wide bandwidth, while the metaradome has been found less suitable for the same purpose.

Description

Keywords

Phased array, Scan blindness, Metasurfaces, Metamaterials, Wire medium

Department

Ingeniería Eléctrica y Electrónica / Ingeniaritza Elektrikoa eta Elektronikoa

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© P. Rodríguez-Ulibarri et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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