Articles liés à Circularly Masked Planar Arrays: Modeling & Design

Circularly Masked Planar Arrays: Modeling & Design - Couverture souple

Albagory, Yasser

 
9783659859823: Circularly Masked Planar Arrays: Modeling & Design
Couverture souple
ISBN 10 : 3659859826 ISBN 13 : 9783659859823
Editeur : LAP LAMBERT Academic Publishing, 2016

Synopsis

In this book, the two-dimensional planar array is designed to reduce the sidelobe levels without any extra processing for the feeding currents or changing the elements locations. The design will trim the elements at the four corners with a specific circular masking function which results in a redistribution of the sidelobes so that the two major planes of sidelobes at θ=0 and 90 degrees are reduced at the cost of increasing other negligible sidelobes. The new masked two-dimensional array has the advantage of easier manufacturing over the concentric circular arrays while maintaining almost the same sidelobe levels and patterns. The analysis of the proposed array design shows that the sidelobe levels will be reduced by 4 dB at first sidelobe in the two major sidelobe planes and is more reduced by up to 10 dB at other sidelobes without any processing or change in the feeding currents. In addition, the sidelobe levels can be further reduced by applying amplitude window functions such as the Hamming window in conjunction with the masking which will reduce greatly the sidelobes level to greater than 30 dB below the main lobe level.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

In this book, the two-dimensional planar array is designed to reduce the sidelobe levels without any extra processing for the feeding currents or changing the elements locations. The design will trim the elements at the four corners with a specific circular masking function which results in a redistribution of the sidelobes so that the two major planes of sidelobes at θ=0 and 90 degrees are reduced at the cost of increasing other negligible sidelobes. The new masked two-dimensional array has the advantage of easier manufacturing over the concentric circular arrays while maintaining almost the same sidelobe levels and patterns. The analysis of the proposed array design shows that the sidelobe levels will be reduced by 4 dB at first sidelobe in the two major sidelobe planes and is more reduced by up to 10 dB at other sidelobes without any processing or change in the feeding currents. In addition, the sidelobe levels can be further reduced by applying amplitude window functions such as the Hamming window in conjunction with the masking which will reduce greatly the sidelobes level to greater than 30 dB below the main lobe level.

Biographie de l'auteur

Yasser Albagory is an assistant professor at the department of electronics and communications engineering, faculty of electronic engineering, Menoufia university, Egypt. His research interests include array signal processing, mobile communications, aerial platforms communications and Internet of things and has published four books in these fields.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2016
Langue
anglais
ISBN 10 
3659859826
ISBN 13 
9783659859823
Reliure
Broché
Nombre de pages
56
Coordonnées du fabricant
non disponible
Personne responsable
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