volume | PIER Journals

2012-05-01

A Novel Beam Scanning/Directivity Reconfigurable m -EBG Antenna Array

Mohamad Hajj,

Dr. Mohamad Hajj

XLIM-University of Limoges

France

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Moustapha Salah Toubet,

Dr. Moustapha Salah Toubet

XLIM, CNRS UMR

France

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Yasser Abdallah,

Dr. Yasser Abdallah

XLIM, CNRS UMR

France

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Regis Chantalat,

Dr. Regis Chantalat

ESTER Technopole

France

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Bernard Jecko

Dr. Bernard Jecko

University of Limoges

France

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Progress In Electromagnetics Research C, Vol. 29, 55-66, 2012

doi:10.2528/PIERC11112207

Abstract

In this paper, we introduce a new technique for an electronic beam scanning/directivity reconfigurable which can be carried out by using a joint array of Metallic Electromagnetic Band Gap (M-EBG) sectoral antennas. This study opens new avenues of research on M-EBG sectoral antennas by combining multiple radiating elements in an array. Usually M-EBG structures are designed in passive configurations to radiate fixed/shaped beams thanks to a specific radiating aperture at the surface of the M-EBG antenna. However by opting this new technique, we are able to control the radiating aperture, and therefore provide a tunable directivity/beam pattern. The objective of the paper is to propose a solution for M-EBG antennas in order to achieve Beam Scanning and Directivity reconfigurability. The main advantage of the proposed technique is that the array have negligible mutual coupling between the radiating elements, simplifying therefore the conception of the beam-forming network and the problems of constrained beam scanning. Another objective of the paper is to be able to achieve wide angle beam scanning -/+58 degrees. This method makes it possible to obtain in a simple way an agile M-EBG antenna without the need of the expensive active electronic components. Several results show the effectiveness and the capabilities of the proposed technique.

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Mohamad Hajj, Moustapha Salah Toubet, Yasser Abdallah, Regis Chantalat, and Bernard Jecko, "A Novel Beam Scanning/Directivity Reconfigurable m -EBG Antenna Array," Progress In Electromagnetics Research C, Vol. 29, 55-66, 2012.
doi:10.2528/PIERC11112207

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