Orthonormal Method for Compact Global Navigation Satellite Systems Antenna Array Designs

Compact antenna arrays require special considerations at design time not to degrade its efficiency and also the spatial diversity becomes reduced in terms of phase resolution as distance diminishes. Additionally, element radiation patterns are affected and the objective of equally behaved antennas i...

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Detalles Bibliográficos
Autores principales: Marranghelli, Ezequiel Alejandro, López La Valle, Ramón Gerardo, Roncagliolo, Pedro Agustín
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2019
Materias:
Electrotecnia
Compact microstrip array
Array efficiency
Orthonormal transformation
Reconfigurable patterns
Smart antennas
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/126456
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-126456
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Electrotecnia
Compact microstrip array
Array efficiency
Orthonormal transformation
Reconfigurable patterns
Smart antennas
spellingShingle Electrotecnia
Compact microstrip array
Array efficiency
Orthonormal transformation
Reconfigurable patterns
Smart antennas
Marranghelli, Ezequiel Alejandro
López La Valle, Ramón Gerardo
Roncagliolo, Pedro Agustín
Orthonormal Method for Compact Global Navigation Satellite Systems Antenna Array Designs
topic_facet Electrotecnia
Compact microstrip array
Array efficiency
Orthonormal transformation
Reconfigurable patterns
Smart antennas
description Compact antenna arrays require special considerations at design time not to degrade its efficiency and also the spatial diversity becomes reduced in terms of phase resolution as distance diminishes. Additionally, element radiation patterns are affected and the objective of equally behaved antennas is even more difficult to achieve. However, the induced antenna gain differences can actually be helpful because they can be used to maintain the degrees of freedom in array radiation pattern subspace. In this article, a general analysis on the relationship of efficiency and beam patterns are reviewed to prove that maximum efficiency is achieved when radiation patterns fulfill a given orthogonality condition. Under this condition, we propose to apply a unitary matrix transformation to the array response that can translate the compact antenna array behavior into the equivalent response of a λ/2‐spaced ideal antenna array without modifying its total efficiency. Consequently, an useful compact antenna array should be designed to have orthogonal radiation beams. Then, applying the transformation, they can be translated to another orthogonal radiation patterns set with only phase differences and a common gain pattern. Simulated results of a computer‐aided design of a practical array of Global Navigation Satellite Systems microstrip antennas are presented.
format Articulo
Preprint
author Marranghelli, Ezequiel Alejandro
López La Valle, Ramón Gerardo
Roncagliolo, Pedro Agustín
author_facet Marranghelli, Ezequiel Alejandro
López La Valle, Ramón Gerardo
Roncagliolo, Pedro Agustín
author_sort Marranghelli, Ezequiel Alejandro
title Orthonormal Method for Compact Global Navigation Satellite Systems Antenna Array Designs
title_short Orthonormal Method for Compact Global Navigation Satellite Systems Antenna Array Designs
title_full Orthonormal Method for Compact Global Navigation Satellite Systems Antenna Array Designs
title_fullStr Orthonormal Method for Compact Global Navigation Satellite Systems Antenna Array Designs
title_full_unstemmed Orthonormal Method for Compact Global Navigation Satellite Systems Antenna Array Designs
title_sort orthonormal method for compact global navigation satellite systems antenna array designs
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/126456
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AT lopezlavalleramongerardo orthonormalmethodforcompactglobalnavigationsatellitesystemsantennaarraydesigns
AT roncagliolopedroagustin orthonormalmethodforcompactglobalnavigationsatellitesystemsantennaarraydesigns
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